Canadian Aviation Regulations (SOR/96-433)
Full Document:
- HTMLFull Document: Canadian Aviation Regulations (Accessibility Buttons available) |
- XMLFull Document: Canadian Aviation Regulations [4390 KB] |
- PDFFull Document: Canadian Aviation Regulations [7120 KB]
Regulations are current to 2026-02-18 and last amended on 2026-01-05. Previous Versions
Part V — Airworthiness (continued)
Subpart 21 — Approval of the Type Design or a Change to the Type Design of an Aeronautical Product (continued)
Division V — Supplemental Type Certificates (continued)
Change to a Type Design Approved in a Supplemental Type Certificate
521.207 The holder of a supplemental type certificate in respect of an aeronautical product who proposes to make a change to the type design approved in the supplemental type certificate shall comply with the requirements set out in section 521.152.
- SOR/2009-280, s. 26
[
Division VI — Repair Design Approvals
Application
521.251 This Division applies
(a) in respect of the issuance of a repair design approval as a result of a repair to an aeronautical product; and
(b) to applicants for and holders of a repair design approval in respect of an aeronautical product.
- SOR/2009-280, s. 26
Eligibility Requirements
521.252 An applicant for a repair design approval in respect of an aeronautical product shall have, or have access to, the technical capability to conduct the design analyses and tests required to demonstrate the conformity of the aeronautical product with its certification basis.
- SOR/2009-280, s. 26
Application for a Repair Design Approval
521.253 An applicant for a repair design approval in respect of an aeronautical product shall submit an application to the Minister as specified in section 521.155 if the repair is in respect of
(a) an aeronautical product for which the Minister has issued or accepted a type certificate; or
(b) an aircraft registered in a foreign state, or an aeronautical product intended for installation on an aircraft registered in a foreign state, with which Canada has an airworthiness agreement or similar arrangement in respect of the acceptance of the technical data used to repair the aeronautical product.
- SOR/2009-280, s. 26
Certification Basis
521.254 The Minister shall establish a certification basis, in respect of a repair design approval for an aeronautical product, consisting of the applicable standards referred to in section 521.157.
- SOR/2009-280, s. 26
Conformity with Certification Basis
521.255 An applicant for a repair design approval in respect of an aeronautical product shall comply with the requirements set out in section 521.160 within the effective period referred to in section 521.156.
- SOR/2009-280, s. 26
Issuance of a Repair Design Approval
521.256 Subject to section 6.71 of the Act, the Minister shall issue a repair design approval in respect of an aeronautical product if the applicant complies with the requirements set out in section 521.255.
- SOR/2009-280, s. 26
Change to a Repair Design Approved in a Repair Design Approval
521.257 The holder of a repair design approval in respect of an aeronautical product who proposes to make a change to the repair design approved in the repair design approval shall comply with the requirements set out in section 521.152.
- SOR/2009-280, s. 26
[
Division VII — Part Design Approvals
Application
521.301 This Division applies
(a) in respect of the issuance of a part design approval for a replacement part that is intended to be installed on an aeronautical product; and
(b) to applicants for and holders of a part design approval in respect of a replacement part.
- SOR/2009-280, s. 26
Eligibility Requirements
521.302 An applicant for a part design approval in respect of a replacement part shall have, or have access to, the technical capability to conduct the design analyses and tests required to demonstrate the conformity of the replacement part with its certification basis.
- SOR/2009-280, s. 26
Application for a Part Design Approval
521.303 (1) An applicant for a part design approval in respect of a replacement part for an aeronautical product for which the Minister has issued or accepted a type certificate shall submit an application to the Minister as specified in section 521.155.
(2) A part design approval shall not be issued if the replacement part
(a) is subject to an airworthiness limitation;
(b) is a standard part or a commercial part;
(c) constitutes a change to the type design of the aeronautical product; or
(d) creates an airworthiness limitation.
- SOR/2009-280, s. 26
Certification Basis
521.304 The Minister shall establish, in respect of a part design approval for a replacement part, a certification basis consisting of the applicable standards referred to in section 521.157.
- SOR/2009-280, s. 26
Conformity with Certification Basis
521.305 An applicant for a part design approval in respect of a replacement part shall comply with the requirements set out in section 521.160 within the effective period referred to in section 521.156.
- SOR/2009-280, s. 26
Issuance of a Part Design Approval
521.306 Subject to section 6.71 of the Act, the Minister shall issue a part design approval in respect of a replacement part if the applicant complies with the requirements set out in section 521.305.
- SOR/2009-280, s. 26
Change to a Part Design Approved in a Part Design Approval
521.307 The holder of a part design approval in respect of a replacement part who proposes to make a change to the part design approved in the part design approval shall comply with
(a) in the case of a change to the type design, the requirements set out in Division V; and
(b) in any other case, the requirements set out in section 521.154.
- SOR/2009-280, s. 26
[
Division VIII — Responsibilities of a Design Approval Document Holder
Application
521.351 This Division applies to holders of a design approval document.
- SOR/2009-280, s. 26
Technical Capability
521.352 The holder of a design approval document in respect of an aeronautical product shall have, or have access to, the technical capability
(a) to conduct design analyses and tests in order to develop the data required to maintain the aeronautical product in an airworthy condition; and
(b) to carry out the responsibilities specified this Division.
- SOR/2009-280, s. 26
Service Difficulty Reporting
521.353 The holder of a design approval document in respect of an aeronautical product shall report to the Minister, in accordance with Division IX, any reportable service difficulty related to the aeronautical product.
- SOR/2009-280, s. 26
Establishing a Service Difficulty Reporting System
521.354 The holder of a design approval document in respect of an aeronautical product shall establish and maintain a service difficulty reporting system for the purpose of receiving, recording, analyzing and investigating reports and information concerning a reportable service difficulty related to the aeronautical product.
- SOR/2009-280, s. 26
Investigation of Service Difficulty Reports
521.355 (1) When the holder of a design approval document in respect of an aeronautical product receives notice that a service difficulty report has been submitted to the Transport Canada web service difficulty reporting system in relation to the aeronautical product, the holder shall
(a) investigate the service difficulty and, if it results from a deficiency in the aeronautical product, develop a corrective action to rectify the deficiency; and
(b) report to the Minister the progress of the investigation and any proposed corrective action.
(2) Subject to section 521.356, if the Minister determines that a corrective action is required to rectify the deficiency, the holder of the design approval document in respect of the aeronautical product shall
(a) submit the technical data in support of the proposed corrective action to the Minister; and
(b) undertake any corrective action that the Minister determines is necessary to rectify the deficiency.
- SOR/2009-280, s. 26
- SOR/2019-119, s. 24(F)
Mandatory Changes
521.356 If the Minister determines that a corrective action is required to rectify an unsafe condition in an aeronautical product, the holder of the design approval document in respect of the aeronautical product shall
(a) submit to the Minister for approval the corrective action required to rectify the unsafe condition; and
(b) on approval of the corrective action, make available to each owner and each operator of the aeronautical product the information needed to rectify the unsafe condition.
- SOR/2009-280, s. 26
Transfer
521.357 (1) Subject to subsection (2), the Minister shall approve the transfer of a design approval document in respect of an aeronautical product from the holder of the design approval document to a transferee if
(a) the holder
(i) notifies the Minister in writing of the intention to transfer the design approval document,
(ii) provides the Minister with the legal name, address and telephone number of the transferee,
(iii) provides the Minister with the number of the design approval document, the legal name of the manufacturer and the model designation of the aeronautical product that is the subject of the transfer,
(iv) returns to the Minister the original design approval document signed by the holder, and
(v) provides the transferee with the type design of the aeronautical product that is the subject of the transfer and the information recorded under paragraph 521.365(a); and
(b) the transferee
(i) applies for the issuance of an amended design approval document,
(ii) complies with the requirements set out in section 521.352, and
(iii) submits a signed undertaking to carry out the responsibilities specified in this Division.
(2) If the transfer involves a foreign state, the holder of the design approval document and the transferee shall comply with the provisions of any airworthiness agreement or similar arrangement that exists between Canada and the foreign state involved in the transfer.
- SOR/2009-280, s. 26
- SOR/2019-119, s. 25
- SOR/2021-152, s. 8(F)
- SOR/2022-246, s. 11(F)
[
Record Keeping
521.365 The holder of a design approval document in respect of an aeronautical product shall
(a) establish and maintain a system for recording
(i) the type design of the aeronautical product,
(ii) the analyses, tests and inspections that were conducted to demonstrate the conformity of the aeronautical product with its certification basis,
(iii) the certification plan and record and the declaration attesting to the demonstration of conformity of the aeronautical product with its certification basis,
(iv) the data developed by the holder and required to maintain the aeronautical product in an airworthy condition, and
(v) the distribution or initial sale of the aeronautical product;
(b) at the request of the Minister, make available to the Minister the design approval document, the type design and any of the information recorded under paragraph (a); and
(c) notify the Minister in writing if the holder no longer intends to make the information recorded under paragraph (a) available for the purpose of manufacture, modification, repair or installation of the aeronautical product or for maintaining the airworthiness of the aeronautical product.
- SOR/2009-280, s. 26
- SOR/2019-119, s. 26
Loss or Disposal of Records
521.366 (1) No person shall dispose of or destroy the records containing the information recorded under paragraph 521.365(a) without the written authorization of the Minister.
(2) The holder of a design approval document in respect of an aeronautical product shall notify the Minister in writing if the records containing the information recorded under paragraph 521.365(a) are lost or destroyed.
- SOR/2009-280, s. 26
Manuals
521.367 (1) The holder of a design approval document in respect of an aeronautical product shall develop and maintain the manuals and their supplements that are required by the certification basis of the aeronautical product and are required to support the operation of the product in service, including
(a) an installation manual;
(b) an operating manual;
(c) a maintenance manual;
(d) an overhaul manual;
(e) servicing instructions;
(f) instructions for continued airworthiness;
(g) an illustrated parts manual; and
(h) service bulletins or equivalent documents.
(2) The holder of a design approval document other than a Canadian Technical Standard Order (CAN-TSO) Design Approval in respect of an appliance or a part shall develop and maintain the manuals and their supplements that are required by the certification basis of the aeronautical product and are required to support the operation of the product in service, including
(a) an aircraft flight manual;
(b) a structural repair manual;
(c) supplemental integrity instructions;
(d) a master minimum equipment list; and
(e) a maintenance review board report.
(3) The holder of a design approval document in respect of an aeronautical product shall, on request, provide the Minister with up to six copies of the manuals and their supplements referred to in subsections (1) and (2), at no cost, in a format agreed to by the Minister.
- SOR/2009-280, s. 26
Instructions for Continued Airworthiness
521.368 If the certification basis of an aeronautical product requires that instructions for continued airworthiness be developed, the holder of a design approval document in respect of the aeronautical product shall
(a) provide the instructions for continued airworthiness
(i) in the case of an aeronautical product other than an aircraft, to each owner of the aeronautical product on the date of its delivery, and
(ii) in the case of an aircraft, to each owner of the aeronautical product on the later of the date of its delivery and the date of the issuance of its first certificate of airworthiness;
(b) provide any change to the instructions for continued airworthiness
(i) in the case of an aeronautical product other than an aircraft, to each of its owners, and
(ii) in the case of an aircraft, to each of its operators;
(c) make available to any person referred to in subsection 571.02(1) the instructions for continued airworthiness and any changes to those instructions; and
(d) submit to the Minister a plan that identifies how changes to the instructions for continued airworthiness will be made available and distributed to any person referred to in paragraph (a), (b) or (c).
- SOR/2009-280, s. 26
Page Details
- Date modified: