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GACA اللغه المطبيه للطبيه وال меди General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES TABLE OF CONTENTS Part 21 - Certification Procedures for Products and Articles SUBPART A – GENERAL § 21.1 Applicability. 5 § 21.2 GACA Recognized Foreign National Aviation Authorities 5 § 21.3 Falsification of Applications, Reports, or Records. 5 § 21.5 Reporting of Failures, Malfunctions, and Defects. 6 § 21.7 Airplane or Rotorcraft Flight Manual. 8 § 21.9 Instructions for Continued Airworthiness and Manufacturer’s Maintenance ……9 Manuals having Airworthiness Limitations Sections. § 21.11 Continued Airworthiness and Safety Improvements for Transport Category……10 Airplanes. § 21.13 Approval of Articles. 10 § 21.15 Replacement and Modification Articles. 11 § 21.17 Required Design Changes. 11 SUBPART B – TYPE CERTIFICATES § 21.31 Applicability. 13 § 21.33 Eligibility. 13 § 21.35 Type Certificate Acceptance. 13 § 21.37 Type Certificate Validation. 14 § 21.39 Special Conditions. 15 § 21.41 Designation of Applicable Regulations. 15 § 21.43 Compliance with Applicable Requirements. 17 § 21.45 Type Design. 17 § 21.47 Type Certificate. 18 § 21.49 Duration. 18 SUBPART C – CHANGES TO TYPE CERTIFICATES § 21.61 Applicability. 19 § 21.63 Design Changes for Aircraft certificated by way of type certificate acceptance. 19 § 21.64 Design Changes for Aircraft type certificated by the way of type certificate…… 21 validation § 21.65 Validation of Design Changes 22 § 21.66 Classification of changes to in the type design 23 § 21.67 Designation of Applicable Regulations. 23 § 21.69 Duration. 25 SUBPART D – SUPPLEMENTAL TYPE CERTIFICATES Page 1 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA العليه العامه للطيران المضي General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES § 21.81 Applicability. 26 § 21.83 Changes Requiring a New Type Certificate. 26 § 21.85 Eligibility for a Supplemental Type Certificate. 26 § 21.87 Applicable Requirements. 26 § 21.89 Inspection and Tests. 26 § 21.91 Flight tests. 27 § 21.93 Flight Test Pilot. 28 § 21.95 Flight Test Instrument Calibration and Correction Report. 28 § 21.97 Statement of Conformity. 28 § 21.99 Compliance with Applicable Requirements. 28 § 21.101 Issue of Supplemental Type Certificates. 29 § 21.103 Privileges. 29 § 21.105 Responsibility of Supplemental Type Certificate Holders to Provide Written-29 Permission for Alterations. § 21.107 Design Approval Information Retention. 29 § 21.109 Duration. 30 § 21.111 Changes in Type Design. 30 SUBPART E – REPAIR DESIGN APPROVALS § 21.121 Applicability. 31 § 21.123 Eligibility for a Repair Design Approval. 31 § 21.125 Applicable Requirements. 31 § 21.127 Inspection and Tests. 31 § 21.129 Statement of Conformity. 31 § 21.131 Compliance with Applicable Requirements. 31 § 21.133 Issue of Repair Design Approval. 31 § 21.135 Privileges. 32 § 21.137 Responsibility of Repair Design Approval Holders to Provide Written…… 32 Permission for Repairs. § 21.139 Design Approval Information Retention. 32 § 21.141 Duration. 32 SUBPART F – AIRWORTHINESS CERTIFICATES § 21.151 Applicability. 33 § 21.153 Eligibility. 33 § 21.155 Airworthiness Certificates: Classification. 33 § 21.157 Amendment or Modification. 33 § 21.159 Transferability. 33 § 21.161 Duration. 33 Page 2 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED VERSION 7.0 Consult the GACA website for current version GACA العليه العامه للطيران المضي General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES § 21.163 Aircraft Identification. 35 § 21.165 Issue of Standard Airworthiness Certificates for Imported Normal, Utility,.... 35 Acrobatic, Commuter, and Transport Category Aircraft; Manned Free Balloons; and Special Classes of Aircraft. § 21.167 Issue of Special Airworthiness Certificates for Primary Category Aircraft. 36 § 21.169 Issue of Special Airworthiness Certificates for Restricted Category Aircraft. 37 § 21.170 Issue of Special Airworthiness Certificates for a Light-Sport Category…… 38 Aircraft. § 21.171 Issue of Multiple Airworthiness Certification. 40 § 21.173 Issue of Experimental Certificates. 40 § 21.175 Experimental Certificates: General. 41 § 21.177 Experimental Certificates: Aircraft to be Used for Market Surveys, Sales…… 43 Demonstrations, and Customer Crew Training. § 21.179 Special Flight Permits. 43 § 21.181 Issue of Special Flight Permits. 44 SUBPART G – SAUDI ARABIA PARTS MANUFACTURER APPROVALS (SAPMA) § 21.201 Applicability. 46 § 21.203 Application. 46 § 21.205 Organization. 47 § 21.207 Quality System. 47 § 21.209 Quality Manual. 49 § 21.211 Location of or Change to Manufacturing Facilities. 49 § 21.213 Inspections and Tests. 49 § 21.215 Issuance. 49 § 21.217 Duration. 50 § 21.219 Transferability. 50 § 21.221 Responsibility of Holder. 50 § 21.223 Design changes. 51 § 21.225 Changes in the Quality System. 51 SUBPART H – EXPORT AIRWORTHINESS APPROVALS § 21.241 Applicability. 52 § 21.243 Export Airworthiness Approvals. 52 § 21.245 Application. 52 § 21.247 Issuance of Export Airworthiness Certificates. 52 § 21.249 Issuance of Export Airworthiness Approvals for Aircraft Engines, Propellers, 53 and Articles. § 21.251 Responsibilities of Exporters. 53 Page 3 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA العامه للطيران المحترف General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES SUBPART I – ACCEPTANCE OF AIRCRAFT ENGINES, PROPELLERS, AND ARTICLES FOR IMPORT § 21.261 Acceptance of Aircraft Engines and Propellers. 55 § 21.263 Acceptance of Articles. 55 SUBPART J – SAUDI ARABIA TECHNICAL STANDARD ORDER (SATSO) AUTHORIZATIONS § 21.271 Applicability. 56 § 21.273 Application. 56 § 21.275 Organization. 57 § 21.277 Quality System. 57 § 21.279 Quality Manual. 57 § 21.281 Location of or Change to Manufacturing Facilities. 57 § 21.283 Inspections and Tests. 57 § 21.285 Issuance. 58 § 21.287 Duration. 58 § 21.289 Transferability. 58 § 21.291 Responsibility of holder. 58 § 21.293 Approval for Deviation. 59 § 21.295 Design changes. 59 § 21.297 Changes in Quality System. 60 Page 4 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA العليه العامه للطيران المحتري General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES SUBPART A – GENERAL § 21.1 Applicability. (a) This part prescribes— (1) Procedural requirements for type certification of imported products by way of type certificate acceptance and type certificate validation; design changes (including repair designs) to type certificated products; the issue of supplemental type certificates (STC), the issue of repair design approvals (RDA), the issue of a Saudi Arabia parts manufacturer approval (SPAMA), the issue of Saudi Arabia technical standard order (SATSO) authorization, the issue of airworthiness certificates; and the issue of export airworthiness approvals. (2) Rules governing the holders of any certificate specified in paragraph (a)(1) of this section. § 21.2 GACA Recognized Foreign National Aviation Authorities For the purpose of this part, a GACA Recognized Foreign National Aviation Authority (NAA) is any of the following: (a) FAA (b) EASA (c) Any other national aviation authority of an ICAO Contracting State that is accepted by GACA under conditions set by the President (however described) where the Contracting State is the state of design. § 21.3 Falsification of Applications, Reports, or Records. (a) No person must make or cause to be made— (1) Any fraudulent or intentionally false statement on any application for a certificate or approval under this part; (2) Any fraudulent or intentionally false entry in any record or report that is required to be kept, Page 5 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 5.0 GACA العلانيه للطبيه وال меди General Authority of Civil Aviation [Non-Text] GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES made, or used to show compliance with any requirement for the issuance or the exercise of the privileges of any certificate or approval issued under this part; (3) Any reproduction for a fraudulent purpose of any certificate or approval issued under this part; or (4) Any alteration of any certificate or approval issued under this part. (b) The commission by any person of an act prohibited under paragraph (a) of this section is a basis for suspending or revoking any certificate or approval issued under this part held by that person. § 21.5 Reporting of Failures, Malfunctions, and Defects. (a) System for Collection, Investigation, and Analysis of Data. The holder of a supplemental type certificate, repair design approval, SAPMA or SATSO authorization must have a system for collecting, investigating, and analyzing reports of and information related to failures, malfunctions, defects, or other occurrences that cause or might cause adverse effects on the continuing airworthiness of the product, part or appliance covered by the design approval. Information about this system must be made available to all known operators of the product, part or appliance and, on request, to any person authorized under other associated implementing General Authority of Civil Aviation Regulation (GACAR). (b) Investigation of Reported Occurrences. When an occurrence reported under paragraph (c) of this section results from a deficiency in the design, or a manufacturing deficiency, the holder of a supplemental type-certificate, repair design approval, SAPMA, SATSO authorization must investigate the reason for the deficiency and report to the GACA the results of its investigation and any action it is taking or proposes to take to correct that deficiency. (c) Except as provided in paragraph (e) of this section, the holder of a supplemental type certificate, repair design approval, a SAPMA, or a SATSO authorization must report any failure, malfunction, or defect in any product or article manufactured by it that it determines has resulted in any of the occurrences listed in paragraph (d) of this section. (d) The following occurrences must be reported as provided in paragraphs (c) of this section: (1) Fires caused by a system or equipment failure, malfunction, or defect. (2) An engine exhaust system failure, malfunction, or defect that causes damage to the engine, Page 6 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 5.0 GACA الطبيه العامه للطبیان المحلي General Authority of Civil Aviation [Non-Text] GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES adjacent aircraft structure, equipment, or components. (3) The accumulation or circulation of toxic or noxious gases in the crew compartment or passenger cabin. (4) A malfunction, failure, or defect of a propeller control system. (5) A propeller or rotorcraft hub or blade structural failure. (6) Flammable fluid leakage in areas where an ignition source normally exists. (7) A brake-system failure caused by structural or material failure during operation. (8) A significant primary structural defect or failure in the aircraft caused by any autogenous condition (fatigue, understrength, corrosion, etc.). (9) Any abnormal vibration or buffeting caused by a structural or system malfunction, defect, or failure. (10) An engine failure. (11) Any structural or flight control system malfunction, defect, or failure that causes an interference with normal control of the aircraft and derogates the flying qualities. (12) A complete loss of more than one electrical power generating system or hydraulic power system during a given operation of the aircraft. (13) A failure or malfunction of more than one attitude, airspeed, or altitude instrument during a given operation of the aircraft. (e) The requirements of paragraph (c) of this section do not apply to— (1) Failures, malfunctions, or defects that the holder of a supplemental type certificate, repair design approval, SAPMA, or SATSO authorization— (i) Determines were caused by improper maintenance or improper usage. (ii) Knows were reported to the GACA by another person under the GACAR. Page 7 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 5.0 GACA اللغه العربيه للطبيع والاصلاح General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (2) Failures, malfunctions, or defects in products, parts, or articles manufactured by a foreign manufacturer and exported to the Kingdom of Saudi Arabia under GACAR § 21.263. (f) Each report required by this section— (1) Must be made to the GACA within 24 hours after it has determined that the failure, malfunction, or defect required to be reported has occurred. However, a report that is due on a Thursday or a Friday may be delivered on the following Saturday, and one that is due on a holiday may be delivered on the next workday. (2) Must be transmitted in a manner and form acceptable to the President and by the most expeditious method available. (3) Must include as much of the following information as is available and applicable: (i) Aircraft serial number. (ii) When the failure, malfunction, or defect is associated with an article approved under a SAPMA or SATSO authorization, the article serial number and model designation, as appropriate. (iii) When the failure, malfunction, or defect is associated with an engine or propeller, the engine or propeller serial number, as appropriate. (iv) Product model. (v) Identification of the part, component, or system involved. This must include the part number. (vi) Nature of the failure, malfunction, or defect. (g) Whenever the investigation of an accident or service difficulty report shows that an article manufactured under a SAPMA or SATSO authorization is unsafe because of a manufacturing or design defect, the manufacturer must, upon request of the President, report to the President the results of its investigation and any action taken or proposed by the manufacturer to correct that defect. If action is required to correct the defect in existing articles, the manufacturer must submit the data necessary for the issuance of an appropriate airworthiness directive (AD) to the GACA. Page 8 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 5.0 GACA الحياء للطبيه والن المحترف General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES § 21.7 Airplane or Rotorcraft Flight Manual. (a) With each airplane or rotorcraft not type certificated with an Airplane or Rotorcraft Flight Manual and having no flight time before March 1, 1979, the holder of a type certificate (including amended or supplemental type certificates) or the licensee of a type certificate must make available to the owner at the time of delivery of the aircraft a current approved Airplane or Rotorcraft Flight Manual. (b) The Airplane or Rotorcraft Flight Manual required by paragraph (a) of this section must contain the following information: (1) The operating limitations and information required to be furnished in an Airplane or Rotorcraft Flight Manual or in manual material, markings, and placards, by the applicable regulations under which the airplane or rotorcraft was type certificated. (2) The maximum ambient atmospheric temperature for which engine cooling was demonstrated must be stated in the performance information section of the Flight Manual, if the applicable regulations under which the aircraft was type certificated do not require ambient temperature on engine cooling operating limitations in the Flight Manual. § 21.9 Instructions for Continued Airworthiness and Manufacturer's Maintenance Manuals having Airworthiness Limitations Sections. (a) The holder of type certificate or a supplemental type certificate for a rotorcraft for which a rotorcraft maintenance manual containing an “Airworthiness Limitations” section has been issued under GACAR § 27.1529 or GACAR § 29.1529 and who obtains approval of changes to any replacement time, inspection interval, or related procedure in that section of the manual must make those changes available upon request to any operator of the same type of rotorcraft. (b) The holder of a type certificate or supplemental type certificate for an aircraft must furnish at least one set of complete instructions for continued airworthiness to the owner of each type aircraft upon its delivery, or upon issuance of the first standard airworthiness certificate for the affected aircraft, whichever occurs later. The instructions must be prepared in accordance with GACAR § 23.1529, 25.1529, 25.1729, 27.1529, 29.1529, 31.82, 33.4, and 35.4; or GACAR Part 26; or as specified in the applicable airworthiness criteria for special classes of aircraft defined in GACAR § 21.41(b), as applicable. If the holder of a design approval chooses to designate parts as commercial, it must Page 9 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 5.0 GACA اللغه العربيه للطيران المدني General Authority of Civil Aviation [Non-Text] GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES include a list of commercial parts in the instructions for continued airworthiness. Thereafter, the holder of a design approval must make those instructions available to any other person required by the GACAR to comply with any of the terms of those instructions. In addition, changes to the instructions for continued airworthiness must be made available to any person required by the GACAR to comply with any of those instructions. (c) To designate commercial parts, the holder of a design approval, in a manner acceptable to GACA, must submit — (1) A commercial parts list. (2) Data for each part on the list, showing that— (i) The failure of the commercial part, as installed in the product, would not degrade the level of safety of the product. (ii) The part is produced only under the commercial part manufacturer's specification and marked only with the commercial part manufacturer's markings. (iii) Any other data deemed to be necessary for the GACA to approve the list. § 21.11 Continued Airworthiness and Safety Improvements for Transport Category Airplanes. The holder of a design approval and an applicant for a design approval must comply with the applicable continued airworthiness and safety improvement requirements of GACAR Part 26. § 21.13 Approval of Articles. If an article is required to be approved under the GACAR, it may be approved— (a) Under a SAPMA or the United States Federal Aviation Administration (FAA) PMA; (b) Under a SATSO authorization, FAA TSO authorization, letter of FAA TSO design approval, or European Aviation Safety Agency (EASA) European Technical Standard Order (ETSO) authorization; (c) In conjunction with type certification or supplemental type certification procedures for a product; or GACAR Part 21 Page 10 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 5.0 GACA اللغه العربيه للطيبان المحدي General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (d) In any other manner approved by the President. § 21.15 Replacement and Modification Articles. (a) If a person knows or should know that a replacement or modification article is reasonably likely to be installed on a type certificated product, the person may not produce that article unless it is— (1) Produced under a SAPMA in accordance with Subpart G; (2) Produced under a SATSO authorization in accordance with Subpart J; (3) A standard part (such as a nut or bolt) manufactured in compliance with a government or established industry specification; (4) A commercial part as defined in GACAR § 1.1; (5) Fabricated by an appropriately rated certificate holder with a quality system, and consumed in the repair or alteration of a product or article in accordance with GACAR Part 43. (b) Except as provided in paragraphs (a)(1) through (a)(2) of this section, a person who produces a replacement or modification article for sale may not represent that part as suitable for installation on a type certificated product. § 21.17 Required Design Changes. (a) When an AD is issued under GACAR Part 39, the holder of the type certificate or supplemental type certificate for the product must— (1) If the President finds that design changes are necessary to correct the unsafe condition of the product, and upon his request, submit appropriate design changes for approval. (2) Upon approval of the design changes, make available the descriptive data covering the changes to all operators of products previously certificated under the type certificate or supplemental type certificate. (b) In a case where there are no current unsafe conditions, but the GACA or the holder of the type certificate or supplemental type certificate finds through service experience that changes in type design will contribute to the safety of the product, the holder of the type certificate or supplemental type certificate may submit appropriate design changes for approval. Upon approval of the changes, Page 11 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 5.0 GACA اللغه العربيه للطبع والنماذن General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES the manufacturer must make information on the design changes available to all operators of the same type of product. Page 12 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 5.0 GACA اللغه العربيه للطيران المحترف General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES SUBPART B – TYPE CERTIFICATES § 21.31 Applicability. This subpart prescribes procedural requirements for the type certification of aircraft, aircraft engines, and propellers by way of type certificate acceptance or type certificate validation. This subpart applies only for an aircraft type certificated in a foreign country and imported into the Kingdom of Saudi Arabia. § 21.33 Eligibility. (a) Any person is eligible to apply for a certificate by way of type certificate acceptance if a type certificate or equivalent document has been issued by a GACA Recognized Foreign NAA. This will apply to any aircraft certificated in the primary, normal, utility, acrobatic, commuter, or transport category, or a manned free balloon or a special classes of aircraft; (b) Any person is eligible to apply for a certificate by way of type certificate acceptance if a type certificate or equivalent document issued by GACA Recognized Foreign NAA and certificated in the restricted category. (c) Any person is eligible to apply for a certificate by way of type certificate validation if a type certificate or equivalent document for an aircraft issued by an International Civil Aviation Organization (ICAO) Contracting State, provided that— (1) No type certificate or equivalent document has been issued or is likely to be issued, for the aircraft by the GACA Recognized Foreign NAA. (2) There is an identified Saudi customer for the aircraft. (3) The President agrees to accept the application. § 21.35 Type Certificate Acceptance. (a) By way of type certificate acceptance, GACA certificates all eligible aircraft on the basis of their respective GACA Recognized Foreign NAA type certificates, provided that the applicant furnishes to GACA the following: Page 13 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA العلانيه العامه للطيران المضي General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (1) One full set of the required operating and maintenance data for the aircraft and its associated engines and propellers. (2) An undertaking from the holder of foreign type certificate or equivalent document to continue to supply to GACA documents and their amendments of paragraph (a)(1) of this section (3) For aircraft type certificated by NAA other than the FAA and the EASA, manuals in accordance with GACAR §21.7 and § 21.9 as applicable. (b) A GACA acceptance certificate is issued to certify that GACA has accepted an aircraft type and model certificated by a GACA Recognized Foreign NAA, The GACA Recognized Foreign NAA type certificate and the corresponding GACA Recognized Foreign NAA type certificate data sheet is considered to be the GACA type certificate for the purposes of this part. The type certificate acceptance of aircraft includes the associated engine(s) and propeller(s), as applicable. (c) An application for type certificate acceptance must be made on a form and in a manner prescribed by the President. § 21.37 Type Certificate Validation. (a) By way of type certificate validation, GACA type certificates all eligible aircraft provided that— (1) The country in which the product was manufactured certifies that the product has been examined, tested, and found to meet— (i) The applicable aircraft noise, fuel venting, and exhaust emissions requirements as designated in GACAR § 21.41 or the applicable aircraft noise, fuel venting, and exhaust emissions requirements of the country in which the product was manufactured and any other requirements the President may prescribe to provide noise, fuel venting, and exhaust emission levels no greater than those provided by the applicable aircraft noise, fuel venting, and exhaust emission requirements as designated in GACAR § 21.41. (ii) The applicable airworthiness requirements as designated in GACAR § 21.41, or the applicable airworthiness requirements of the country in which the product was Page 14 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA اللغه العربيه للطيران المضني General Authority of Civil Aviation [Non-Text] GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES manufactured and any other requirements the President may prescribe to provide a level of safety equivalent to that provided by the applicable airworthiness requirements as designated in GACAR § 21.41. (2) The applicant has submitted the technical data for the product required by the President concerning aircraft noise and airworthiness. (3) The manuals, placards, listings, and instrument markings required by the applicable airworthiness requirements (and noise requirements, where applicable) are presented in the English language. (b) A product type certificated under this section is considered to be type certificated under the noise standards of GACAR Part 36 and the fuel venting and exhaust emission standards of GACAR Part 34, where compliance therewith is certified under paragraph (a)(1)(i) of this section, and under the airworthiness standards certified under paragraph (a)(1)(ii) of this section. (c) GACA type certificates are issued to signify GACA type certificate validation. The type certificate validation of an aircraft includes the associated engines and propellers, as applicable. (d) An application for type certificate validation is made on a form and in a manner prescribed by the President. § 21.39 Special Conditions. If the President finds that the airworthiness regulations do not contain adequate or appropriate safety standards for an aircraft, aircraft engine, or propeller because of a novel or unusual design feature of the aircraft, aircraft engine, or propeller, he prescribes special conditions and amendments for the product. The special conditions contain such safety standards for the aircraft, aircraft engine, or propeller as the President finds necessary to establish a level of airworthiness equivalent to that established in the regulations. § 21.41 Designation of Applicable Regulations. (a) Except as provided in GACAR §§ 23.2, 25.2, 27.2, and 29.2, and in GACAR Parts 26, 34, and 36, an applicant for type certificate validation must show that the aircraft, aircraft engine, or propeller meets— (1) Subject to paragraph (c) of this section, the applicable requirements are effective on the date Page 15 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA العليه للطيران المدني General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES of application for the original type certificate issued by the state of design unless— (i) Otherwise specified by the President. (ii) Compliance with later effective amendments is elected or required under this section. (2) Any special conditions are prescribed by the President. (b) For special classes of aircraft, including the engines and propellers installed thereon (e.g., gliders, airships, and other nonconventional aircraft), for which airworthiness standards have not been issued, the applicable requirements will be the portions of those airworthiness requirements contained in GACAR Parts 23, 25, 27, 29, 31, 33, and 35 found by the President to be appropriate for the aircraft and applicable to a specific type design, or such airworthiness criteria as the President determines provide an equivalent level of safety to those parts. (c) The original type certificate issued by the state of design for a transport category aircraft must have been issued within 5 years of the original date of application and for any other category of aircraft within 3 years of the original date of application, unless the President approves a longer period. (d) Applicants that elect to comply with an amendment to the GACAR that is effective after the filing of the application for a type certificate must also comply with any other amendment that the President finds is directly related. (e) For primary category aircraft, the requirements are— (1) The applicable airworthiness requirements contained in GACAR Parts 23, 27, 31, 33, and 35, or such other airworthiness criteria as the President may find appropriate and applicable to the specific design and intended use, and provide a level of safety acceptable to the President. (2) The noise standards of GACAR Part 36 applicable to primary category aircraft. (f) For restricted category aircraft, the requirements are— (1) The applicable airworthiness requirements of the aircraft category except those requirements that the President finds inappropriate for the special purpose(s) for which the aircraft is to be used; Page 16 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA الحياء للعلوم والطبيه General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (2) The applicable noise standards of GACAR Part 36. (g) For the purposes of this section, "special purpose operations" includes— (1) Agricultural (spraying, dusting, and seeding, and livestock and predatory animal control); (2) Forest and wildlife conservation; (3) Aerial surveying (photography, mapping, and oil and mineral exploration); (4) Patrolling (pipelines, power lines, and canals); (5) Weather control (cloud seeding); (6) Aerial advertising (skywriting, banner towing, airborne signs and public address systems); and (7) Any other operation specified by the President. § 21.43 Compliance with Applicable Requirements. The applicant for a type certificate validation or a supplemental type certificate validation must— (a) Show compliance with all applicable requirements and, upon request by GACA, provide to the GACA the means by which such compliance has been shown. (b) Provide a statement certifying that the applicant has complied with the applicable requirements. § 21.45 Type Design. The type design consists of— (a) The drawings and specifications, and a listing of those drawings and specifications, necessary to define the configuration and the design features of the product shown to comply with the requirements of that part of the GACAR applicable to the product; (b) Information on dimensions, materials, and processes necessary to define the structural strength of the product; Page 17 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA اللغه العربيه للطيران المحلي General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (c) The airworthiness limitations section of the instructions for continued airworthiness, as required by GACAR Parts 23, 25, 26, 27, 29, 31, 33, and 35, or as otherwise required by the President; and as specified in the applicable airworthiness criteria for special classes of aircraft defined in GACAR § 21.41(b); (d) For primary category aircraft, if desired, a special inspection and preventive maintenance program designed to be accomplished by an appropriately rated and trained pilot-owner; and (e) Any other data necessary to allow, by comparison, the determination of the airworthiness, noise characteristics, fuel venting, and exhaust emissions (where applicable) of later products of the same type. § 21.47 Type Certificate. Each type certificate is considered to include the type design, the operating limitations, the type certificate data sheet, the applicable regulations of the GACAR with which the President records compliance, and any other conditions or limitations prescribed for the product. § 21.49 Duration. A type certificate is effective until surrendered, suspended, revoked, or a termination date is otherwise established by the President. Page 18 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA الحياء للطبيه والن المحترف General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES SUBPART C – CHANGES TO TYPE CERTIFICATES § 21.61 Applicability. This subpart prescribes procedural requirements for the approval of changes to type certificates or supplemental type certificates for aircraft type certificate accepted or type certificate validated by the GACA in accordance with Subpart B. § 21.63 Design Changes for Aircraft certificated by way of type certificate acceptance. This regulation applies to design changes for aircraft certificated by way of type certificate acceptance under GACAR §21.35. The design change criteria stated in this section also apply to repair designs. (a) Design Changes introduced by the TC holder. GACA accepts all design changes introduced by the holder of TC. This includes minor and major design changes and changes via STC. (b) Design Changes to the STC introduced by the holder of the STC when holder of the STC is the holder of the TC. GACA accepts all design changes introduced by the holder of STC if the STC is held by the holder of TC. (c) Design Changes under bilateral agreement. GACA accepts all design changes otherwise accepted by GACA under the provisions of a bilateral agreement between a State of design and the Kingdom of Saudi Arabia. (d) Design Changes introduced by the designee or approved design organization of the State of design or the certifying national aviation authority. This applies to design changes introduced by the designees or the approved design organizations (however described) of the State of design. This also applies to the designees or the approved design organizations of the certifying national aviation authority. The design changes include minor and major design changes and changes via STC. (i) Minor changes in the type design may be accepted by GACA under a method acceptable to the President. Page 19 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA العلانيه للطيران المدني General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (ii) Major changes in the type design may be accepted by GACA if the approved design meets all GACA airworthiness requirements including any other additional airworthiness requirements as applicable. GACA may accept such design change under a method acceptable to the President. (iii) STCs may be accepted by GACA if the STC meets all GACA airworthiness requirements including any other additional airworthiness requirements as applicable. GACA may accept such STCs under a method acceptable to the President. (e) Design Changes to the STC introduced by the STC holder when the STC holder is not the holder of TC. Any design change to the STC may be accepted by GACA under a method acceptable to the President. This applies to design changes introduced by the holder of the STC when the holder of the STC is not the holder of the TC. (f) Design Changes approved by foreign aviation authorities. Foreign aviation authorities are the authorities other than GACA recognized foreign NAA as defined in GACAR §21.2. GACA must validate all design changes approved by a foreign national aviation authority as follows: (i) Minor changes in the type design approved by foreign aviation authorities or their designees may be approved under a method acceptable to the President on a case by case basis. (ii) Major changes in the type design must be approved by GACA under a method acceptable to the President. GACA approves major changes in type design by the way of validation under GACAR §21.65 (iii) STCs must be approved by GACA under a method acceptable to the President. GACA approves STC if the STC meets all the applicable requirements of GACAR Subpart D. (g) Design Changes Introduced by any Person. Design changes introduced by any other person not addressed in this section must be approved by GACA. (i) Minor changes in the type design may be approved under a method acceptable to the President. GACAR Part 21 Page 20 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA اللغه العربيه للطبيع والاصلاح General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (ii) Major changes in the type design must be approved by GACA under a method acceptable to the President. GACA approves major changes in type design if the design meets all the applicable requirements of GACAR § 21.65. § 21.64 Design Changes for Aircraft Type Certificated By the Way of Type Certificate Validation This regulation applies to design changes for aircraft certificated by way of type certificate validation under GACAR §21.37. The design change criteria stated in this section also apply to repair designs. (a) Design Changes. GACA must validate all design changes approved by the State of design or by any other foreign national aviation authority. This includes minor and major design changes and changes via STC. (1) Minor changes in the type design approved by foreign aviation authorities or their designees may be approved under a method acceptable to the President on a case by case basis. (2) Major changes in the type design must be approved by GACA under a method acceptable to the President. GACA approves major changes in type design by the way of validation under GACAR §21.65 (3) STCs must be approved by GACA under a method acceptable to the President. GACA approves STC if the STC meets all the applicable requirements of GACAR Subpart D (b) Design Changes to the STC. Changes to the STC must be approved by GACA under a method acceptable to the President. (c) Design Changes under bilateral agreement. GACA accepts all design changes otherwise accepted by the GACA under the provisions of a bilateral agreement between a State of design and the Kingdom of Saudi Arabia. (d) Design Changes Introduced by any Person. Design Changes introduced by any other person not addressed in this section must be approved by GACA. Page 21 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA اللغه العربيه للطيران المحترف General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (1) Minor changes in the type design may be approved under a method acceptable to the President. (2) Major changes in the type design must be approved by GACA under a method acceptable to the President. GACA approves major changes in type design if the design meets all the applicable requirements of GACAR § 21.65 § 21.65 Validation of Design Changes. (a) General. GACA validates design changes when— (1) It is shown that the design change has been examined, tested, and found to meet The applicable airworthiness requirements as designated in GACAR § 21.67, or the applicable airworthiness requirements of the country in which the product was manufactured and any other requirements the President may prescribe to provide a level of safety equivalent to that provided by the applicable airworthiness requirements as designated in GACAR § 21.67. (2) The applicant has submitted the technical data. The data must include (i) Showing that the design complies with the applicable airworthiness standards for the design (ii) Inspection and test results (iii) A copy of any instructions for continued airworthiness in respect of the design (iv) If the design affects operating instruction and limitations of the aircraft, a copy of amended flight manual or a flight manual supplement (v) Showing that the new part(s) and its materials conform to the specification in the type design GACAR Part 21 Page 22 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA اللغه العربيه للطبع والن الصحي General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (vi) Showing that the new part(s) conform to the drawings in the design (3) It is shown that no feature or characteristic of the design makes the aircraft, engine or propeller unsafe for its intended use (4) Applicant must allow GACA to carry out an inspection or test or observe a test if requested by GACA (b) GACA STCs or other forms of approval specified by the President are issued to signify approval based on design change validation. (c) An application for design change validation must be made on a form and in a manner prescribed by the President. (d) GACA type certificates or amended type certificates, GACA STCs or other forms of approval specified by the President are issued to signify approval based on design change validation. (e) An application for design change validation must be made on a form and in a manner prescribed by the President. § 21.66 Classification of changes to in the type design. Changes to the type design are classified as minor or major. A "minor change" is one that has no appreciable effect on the weight, balance, structural strength, reliability, operational characteristics, or other characteristics affecting the airworthiness of the product. All other changes are "major changes". § 21.67 Designation of Applicable Regulations. (a) Except as provided in paragraph (h) of this section, an applicant for an approval of design change in accordance with GACAR § 21.65 must show that the change and areas affected by the change comply with the airworthiness requirements applicable to the category of the product in effect on the date of the original application to the state of design for the change and with GACAR Parts 34 and 36. Exceptions are detailed in paragraphs (b), (c) and (e) of this section. Page 23 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA العلانيه الخاصه للطيران المضني General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (b) Except as provided in paragraph (g) of this section, if paragraphs (b)(1), (2), or (3) of this section apply, an applicant may show that the change and areas affected by the change comply with an earlier amendment of a regulation required by paragraph (a) of this section, and of any other regulation the President finds is directly related. However, the earlier amended regulation may not precede either the corresponding regulation incorporated by reference in the type certificate, or any regulation in GACAR § 23.2, 25.2, 27.2, or 29.2 that is related to the change. The applicant may show compliance with an earlier amendment of a regulation for any of the following: (1) A change that the President finds not to be significant. In determining whether a specific change is significant, the President considers the change in context with all previous relevant design changes and all related revisions to the applicable regulations incorporated in the type certificate for the product. Changes that meet one of the following criteria are automatically considered significant: (i) The general configuration or the principles of construction are not retained. (ii) The assumptions used for certification of the product to be changed do not remain valid. (2) Each area, system, component, equipment, or appliance that the President finds is not affected by the change. (3) Each area, system, component, equipment, or appliance that is affected by the change, for which the President finds that compliance with a regulation described in paragraph (a) of this section would not contribute materially to the level of safety of the product or would be impractical. (c) An applicant for a change to an aircraft (other than a rotorcraft) of 2725 kg or less maximum mass, or to a non turbine rotorcraft of 1350 kg or less maximum mass may show that the change and areas affected by the change comply with the regulations incorporated by reference in the original type certificate of the state of design. However, if the President finds that the change is significant in an area, he may designate compliance with an amendment to the regulation incorporated by reference in the type certificate that applies to the change and any regulation that the President finds is directly related, unless the President also finds that compliance with that amendment or regulation would not contribute materially to the level of safety of the product or would be impractical. (d) If the President finds that the regulations in effect on the date of the application for the change do not provide adequate standards with respect to the proposed change because of a novel or unusual Page 24 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA اللغه العربيه للطيبان المحدي General Authority of Civil Aviation [Non-Text] GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES design feature, the applicant must also comply with special conditions and amendments to those special conditions to provide a level of safety equal to that established by the regulations in effect on the date of the application for the change. (e) The original design change approval issued by the state of design for a transport category aircraft must have been issued within 5 years of the original date of application and for any other category of aircraft within 3 years of the original date of application, unless the President approves a longer period. (f) For aircraft certificated under GACAR § 21.41(b) the airworthiness requirements applicable to the category of the product in effect on the date of the application for the change, include each airworthiness requirement that the President finds to be appropriate for the type certification of the aircraft in accordance with those sections. (g) Notwithstanding paragraph (b) of this section, for transport category airplanes, the applicant must show compliance with each applicable provision of GACAR Part 26, unless the applicant has elected or was required to comply with a corresponding amendment to GACAR Part 25 that was issued on or after the date of the applicable GACAR Part 26 provision. (h) For repair designs, the applicant only needs to show that the repair design complies with regulations incorporated by reference in the type certificate and for transport category airplanes the applicable provisions of GACAR Part 26 unless the applicant has elected or was required to comply with a corresponding amendment to GACAR Part 25 that was issued on or after the date of the applicable GACAR Part 26 provision. § 21.69 Duration. A design change approval is effective until surrendered, suspended, revoked, or a termination date is otherwise established by the President. Page 25 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA اللغه العربيه للطبع والن الصحي General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES SUBPART D – SUPPLEMENTAL TYPE CERTIFICATES § 21.81 Applicability. (a) This subpart prescribes procedural requirements for the issue of STCs other than STCs issued under Subpart C. (b) This subpart only applies to aircraft type certificated under Subpart B. § 21.83 Changes Requiring a New Type Certificate. The GACA will not accept an application for a STC under this subpart if the President finds that the proposed change in design, power, thrust, or mass is so extensive that a substantially complete investigation of compliance with the applicable regulations is required. § 21.85 Eligibility for a Supplemental Type Certificate. Any person, other than the type certificate holder, who alters a product by introducing a major change in type design not great enough to require a new type certificate under GACAR § 21.83, should apply to the President for a STC. The application must be made in a form and manner prescribed by the President. § 21.87 Applicable Requirements. (a) Each applicant for a STC must show that the altered product meets applicable requirements specified in GACAR § 21.67 and, in the case of an acoustical change, show compliance with the applicable noise requirements of GACAR Part 36 and, in the case of an emissions change, show compliance with the applicable fuel venting and exhaust emissions requirements of GACAR Part 34. § 21.89 Inspection and Tests. (a) Each applicant must allow the President to make any inspection and any flight and ground test necessary to determine compliance with the applicable requirements of the GACAR. However, unless otherwise authorized by the President— (1) No aircraft, aircraft engine, propeller, or part thereof may be presented to the President for test unless compliance with paragraphs (b)(2) through (b)(4) of this section has been shown for that aircraft, aircraft engine, propeller, or part thereof. (2) No change may be made to an aircraft, aircraft engine, propeller, or part thereof between the Page 26 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA العلانيه للطبيه وال меди General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES time that compliance with paragraphs (b)(2) through (b)(4) of this section is shown for that aircraft, aircraft engine, propeller, or part thereof and the time that it is presented to the President for test. (b) Each applicant must make all inspections and tests necessary to determine— (1) Compliance with the applicable airworthiness, aircraft noise, fuel venting, and exhaust emission requirements; (2) That materials and products conform to the specifications in the type design; (3) That parts of the products conform to the drawings in the type design; and (4) That the manufacturing processes, construction, and assembly conform to those specified in the type design. § 21.91 Flight tests. (a) Each applicant for a supplemental type certificate must make the tests listed in GACAR § 21.89. Before making the tests the applicant must show— (1) Compliance with the applicable structural requirements of the applicable airworthiness codes of the GACARs; (2) Completion of necessary ground inspections and tests; (3) That the aircraft conforms with the type design; and (4) That the GACA received a flight test report from the applicant (signed, in the case of aircraft to be certificated under GACAR Part 25, by the applicant's test pilot) containing the results of his tests. (b) Each applicant must show for each flight test (except in a glider or a manned free balloon) that adequate provision is made for the flight test crew for emergency egress and the use of parachutes. (c) Except in gliders and manned free balloons, an applicant must discontinue flight tests under this section until he shows that corrective action has been taken, whenever— (1) The applicant's test pilot is unable or unwilling to make any of the required flight tests; or Page 27 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA اللغه المطبيه General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (2) Items of noncompliance with requirements are found that may make additional test data meaningless or that would make further testing unduly hazardous. § 21.93 Flight Test Pilot. Each applicant for a STC that requires certification flight testing to show compliance with the applicable airworthiness requirements must provide a person holding an appropriate pilot certificate to make the flight tests required by this part. § 21.95 Flight Test Instrument Calibration and Correction Report. (a) Each applicant for a STC that requires certification flight testing to show compliance with the applicable airworthiness requirements must submit a report to the President showing the computations and tests required in connection with the calibration of instruments used for test purposes and in the correction of test results to standard atmospheric conditions. (b) Each applicant must allow the President to conduct any flight tests that he finds necessary to check the accuracy of the report submitted under paragraph (a) of this section. § 21.97 Statement of Conformity. Each applicant must submit a statement of conformity to the President for each aircraft or part thereof presented to the President for tests. This statement of conformity must include a statement that the applicant has complied with GACAR § 21.89(a) (unless otherwise authorized under that paragraph). § 21.99 Compliance with Applicable Requirements. (a) Each applicant must— (1) Provide substantiating data and the necessary descriptive data for inclusion in the type design; (2) Show that the change and areas affected by the change comply with the applicable requirements of this chapter, and provide to the GACA the means by which compliance has been shown; and (3) Provide a statement certifying that the applicant has complied with all the applicable requirements. (b) Approval of a major change in the type design of an aircraft engine is limited to the specific Page 28 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA اللغه العربيه للطبيع والاصلاح General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES engine configuration upon which the change is made unless the applicant identifies in the necessary descriptive data for inclusion in the type design the other configurations of the same engine type for which approval is requested and shows that the change is compatible with the other configurations. § 21.101 Issue of Supplemental Type Certificates. (a) An applicant is eligible for a STC if he meets the requirements of GACAR §§ 21.85, 21.87 and 21.99 and the President is satisfied that— (1) Upon examination of the type design and after completing all tests and inspections, that the type design and the product meet the applicable noise, fuel venting, emissions, and applicable airworthiness requirements of the GACAR or that any airworthiness provisions not complied with are compensated for by factors that provide an equivalent level of safety; and (2) For an aircraft, no feature or characteristic makes it unairworthy for the category in which certification is requested. § 21.103 Privileges. The holder of a STC may— (a) In the case of aircraft, obtain airworthiness certificates. (b) In the case of other products, obtain approval for installation on certificated aircraft. (c) Obtain a production certificate in accordance with Subpart K of this part. § 21.105 Responsibility of Supplemental Type Certificate Holders to Provide Written Permission for Alterations. A STC holder who allows a person to use the STC to alter an aircraft, aircraft engine, or propeller must provide that person with written permission acceptable to the President. § 21.107 Design Approval Information Retention. (a) Each holder of a GACA STC must have a system for retaining the type-design data and all data used to show that their design complies with the airworthiness and environmental requirements specified in the basis of certification. (b) Each holder of a GACA STC must retain the documents prescribed in paragraph (a) of this section until all affected aircraft have been permanently withdrawn from service. Page 29 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA الحياء للطبيه والن المحترف General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES (c) The data retained by the holder must be made available to the President upon request. § 21.109 Duration. An STC is effective until surrendered, suspended, revoked, or a termination date is otherwise established by the President. § 21.111 Changes in Type Design. (a) Changes to the type design of the STC are classified as minor or major. A "minor change" is one that has no appreciable effect on the weight, balance, structural strength, reliability, operational characteristics, or other characteristics affecting the airworthiness of the product. All other changes are "major changes". (b) Minor changes in the type design of the STC may be approved under a method acceptable to the President before submitting to the GACA any substantiating or descriptive data. (c) Major changes in the type design of the STC must be approved by the President. An applicant for approval of a major change in type design must— (1) Provide substantiating data and necessary descriptive data for inclusion in the type design; (2) Show that the change and areas affected by the change comply with the applicable airworthiness requirements, and provide the President the means by which such compliance has been shown; and (3) Provide a statement certifying that the applicant has complied with the applicable requirements. Page 30 GACAR Part 21 UNCONTROLLED DOCUMENT WHEN DOWNLOADED Consult the GACA website for current version VERSION 7.0 GACA اللغه العربيه للطيران المحترف General Authority of Civil Aviation GACAR PART 21 – CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES SUBPART E – REPAIR DESIGN APPROVALS § 21.121 Applicability. This subpart prescribes procedural requirements for the issue of RDA for repairs designs other than those approved under Subpart C. § 21.123 Eligibility for a Repair Design Approval. Any person, other than the type certificate holder, who alters a product by introducing a design for a repair, may apply to the President for an RDA. The application must be made in a form and manner prescribed by the President. § 21.125 Applicable Requirements. (a) Each applicant for an RDA must show that the altered product meets applicable requirements specified in GACAR § 21.67. § 21.127 Inspection and Tests. (a) Each applicant must allow the President to make a …(56,641 more chars)