Release of Technical Airworthiness Manual - Change 9

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30 May 2022

Release of Technical Airworthiness Manual (TAM) Change 9

Reference: Technical Airworthiness Manual, C‑05‑005‑001/AG-001, Change 9, dated 2022-03-01

  1. The purpose of this letter is to formally announce the release of Change 9 of CFTO C‑05‑005‑001/AG-001, Technical Airworthiness Manual (TAM).
  2. TAM Change 9 is available on the Technical Airworthiness Authority (TAA) internet site. In addition, organizations with access to the Defence Wide Area Network can access TAM Change 9 at on the Canadian Forces Publication Depot’s intranet site, at, as well as on the DTAES intranet. 
  3. TAM Change 9 introduces new maintenance requirements related to systems that require independent checks, as well as new SMR specific to operations in a RVSM airspace, which have already been communicated to affected stakeholders through the NPC process.  In addition to minor and editorial changes meant to enhance format and readability, and improve the implementation of the Technical Airworthiness Program, there are other more substantive changes that are introduced that did not require consultation through the NPC process. A summary of the composition of TAM Change 9 is listed below.
  4. As TAM Change 9 will affect stakeholders differently, the TAA, through the DTAES regulatory staff, will coordinate directly with affected organizations to provide guidance and direction with regard to compliance requirements affecting organizational approvals.  In the interim, if you have any questions or feedback related to the content of the new or amended provisions of TAM Change 9, you may contact the TAA Secretariat, at:

    Directorate of Technical Airworthiness and Engineering Support (DTAES)
    National Defence Headquarters
    Ottawa, Ontario K1A 0K2
    Attention: LCol Jennifer Davaine, DTAES 2
    Email: LCol Jennifer Davaine
  5. The evolution and update of the TAM is an ongoing process and my staff is continuously working to further develop and improve its content and efficacy. We will continue to use NPCs to seek your feedback regarding future changes and welcome your input in the TAM amendment process.


Martin Breton
For Technical Airworthiness Authority
Director Technical Airworthiness and Engineering Support

Changes incorporated in TAM Change 9, 2022-03-01

This summary is not exhaustive and users should consult the TAM for the complete list of changes.

Major changes

Part 2 – Initial Airworthiness

Chapter 1 – Aircraft Type Certification Process
  • Removal of Rule 2.1.2.R6 and associated standard S6 related to the requirement for an in-service support (ISS) plan, which does not constitute a certification requirement, and their relocation to Chapter 3, Section 2; and
  • Removal of Rule 2.2.2.R7 and its associated standard S7 related to ALSE.
Chapter 2 – Aircraft Registration and Marking
  • Amendments to Standards 2.2.2.S1, 2.2.2.S2, 2.2.2.S4 and 2.2.2.S5, to align with TAA Advisory 2013-16 and AF9000 procedure TAA09.016, and clarify markings for UAS, including those not operated by RCAF.
Chapter 3 – Technical Airworthiness Clearance (TAC)
  • Consolidation of TAM ALSE content in Rule 2.3.2.R5 to add clarity to the TAC requirements for ALSE and provide guidance on how to include non-certified ALSE into the TAC report during initial aircraft certification.

Part 3 – Continuing Airworthiness

Chapter 1 – Conduct and Control of Maintenance
  • Amendments to Standard 3.1.2.S8, paragraph 1.c., to include Oxygen and Pitot-Static Systems to the list of independent verifications, in alignment with Part 4, Section 1 of C-05-005-P05/AM-001 – Verification of Maintenance.

Part 5 – Airworthiness Processes

Chapter 1 – Technical Airworthiness Risk Management
  • Amendments to paragraph 2 of Standard 5.1.2.S1 and Figures 5-1-2-1, 5-1-2-5 and 5-1-2-7, to align the TAM with the Airworthiness Risk Management process described in AF9000 procedure EMT01.003, including the widening of the Hazard Severity classification criteria to include the UAS, the redefinition of the Catastrophic Survivability Hazard Severity to include single-occupant aircraft and the addition of the requirement for OAA acceptance for RARMs above ALOS.
Chapter 3 – Maintenance Program Requirements
  • Expansion of Annex A of Section 2 to include Supplemental Maintenance Requirements for DND/CAF aircraft that operate in RVSM airspace.
Chapter 7 – Flight Authority
  • Amendments to paragraphs 3 and 4 of Standard 5.7.2.S3.2 to state the specific circumstances under which the TAA retains authority to grant an EFP and eliminate the ‘high or extremely high risk’ scenario.

Minor changes 

Part 1 – Management Framework

Chapter 4 – Assignment of Technical Airworthiness Authority
  • Clarification on the applicability of Human Factors training to align it with TAA Advisory 2017-03, and addition of the specific CAR Standard that details the requirements for Human Factors training in civil aviation AMOs; and
  • Amendments to initial training qualification and authorization requirements for Non-Destructive Testing operators (including the authorization of ACAs as NDT operators) and the removal of reference to TAA Advisory 2016-03, which was rescinded.

Part 2 – Initial Airworthiness

Chapter 1 – Aeronautical Product Type Certification Process
  • Amendment of a Standard 1 Advisory Note on Certification Basis requirements that cannot be met, or for which different means of compliance are used, to reflect the reality that exemptions and deviations, as described in TAM Part 5, Chapter 9, have replaced RARMs in the process of documenting risk associated to certification gaps;
  • Replacement of the term “aeronautical product” with “aircraft”, where applicable, to reflect the reality that DND Type Certificates are issued for aircraft only;
  • Amendment to paragraph 4 of 2.1.2.S3 to provide a correct list of sources for Certification Basis requirements; and
  • Correction of an Advisory Note in Rule 2.1.2.R1 to clarify that airworthiness approval is granted by the TAA to all aircraft types that are on the DND Military Register and receive a DND Type Certificate, rather than at the discretion of the TAA for certain military aeronautical products, as previously stated.
Chapter 2 – Aircraft Registration and Marking
Chapter 3 – Technical Airworthiness Clearance
  • The addition of Class 1 UAS Open Category and its associated regulatory oversight requirements, to align with the other DND/CAF Airworthiness Program authorities, as formally acknowledged by the RCAF Commander in a March 2018 Briefing Note, and instructed during the fall Executive ARB dated 1 December 2021.
Chapter 5 – Type Design Examination (TDE)
  • Removal of an outdated reference to Transport Canada’s advisory and guidance material on TDE.
Chapter 7 – Canadian Armed Forces Publications
  • Additions and corrections to Section 1 and Annex A of Part 2, Chapter 7 – Canadian Armed Forces Flight Publications, including the replacement of the term “Approved Flight Manual” with “Flight Manual”, the addition of descriptions for Flight Manual Supplement and Checklist, and the content re-arrangement in order of hierarchy of publications.

Part 3 – Continuing Airworthiness

Chapter 1 – Conduct and Control of Maintenance
  • Corrections to NDID numbers of CFTOs used in the prevention of foreign objects, i.e., the old CFTO C-05-005-021/AM-000 – Tool Control System was replaced with CFTO C-05-005-021/AM-001 (same title), and the rescinded CFTO C-05-040-004/TS-002 – Safety Precautions and Accident Prevention of Foreign Object Damage to Aircraft and Aero-engines was replaced with C-05-005-P10/AM-001 – General Aircraft Maintenance Safety.

Part 5 – Airworthiness Processes

Chapter 1 – Technical Airworthiness Risk Management
  • Addition of an Advisory Note to Figure 5-1-2-6 – Survivability Hazard Probability Definitions, to clarify how the threshold for the ‘Extremely Improbable’ and ‘Extremely Remote’ definitions may be altered when a performance standard exists for an essential survivability system.
Chapter 2 – Procurement and Control of Aviation Replacement Parts
  • Addition of information on the documentation required for installation of parts on Canadian-registered aircraft, and remove TCCA-approved distributors as a source of approved parts.
Chapter 3 – Maintenance Program Requirements
  • The removal of out-of-sequence inspections (OSI) from an Advisory Note in Standard 5.3.2.S4 for consistency with other references to Airworthiness Limitations (AWLs) for military aircraft using Equipment Codes and Inspection Requirements.

Various TAM-wide minor editorial corrections

  • A TAM-wide replacement of the term “Unmanned Aircraft” with “Uncrewed Aircraft”, to align with the decision of the Joint Terminology Panel of Canada;
  • A TAM-wide standardization of the term “Acceptable Means of Compliance”;
  • A TAM-wide clarification of the terms “Compliance Program” (introduced in Change 8) and “Certification Program”, to ensure a consistent use of these terms;
  • A TAM-wide replacement of the term “alternate method of compliance” with the industry standard term “Alternative Means of Compliance (AltMoC)”, and the replacement of the term “alternate” with “alternative”, where applicable, for consistency;
  • The addition of the Investigative Airworthiness Clearance to applicable sections of the TAM to accurately reflect changes to the Airworthiness Clearance process and align the TAM with other DND/CAF Airworthiness Program documentation;
  • The addition of the U.K. Civil Aviation Authority (CAA) as an acceptable regulator where applicable (due to the U.K.’s exit from the European Union);
  • The addition of EASA as an acceptable regulator where applicable;
  • Amendment of the TCCA form identifier for Authorized Release Certificate;
  • A clarification of the term "Recognition" typically used for Acceptable Organizations, but also in the context of Military Aviation Authorities (MAAs);
  • Various other updates to document references (e.g., the replacement of a rescinded TAA Advisory in Part 5, Chapter 3, with AF9000 procedure EMT04.023, or the replacement of references to TCCA CARs with CAR Standards, the FAA FARs with the U.S. Title 14 CFR, and of the use of EASA for European airworthiness standards with EASA CS);
  • Relocation of references to TAA Advisories in Section 3 of certain chapters, for ease of access to this information, in an effort to standardize these sections of the TAM; and
  • Various typographical error and other corrections, to improve the quality and readability of the manual.

List of abbreviations and Glossary amendments

  • Amendments to the following definitions:
    • Acceptable Design Organization (ADO)
    • Acceptable Technical Organization (ATO)
    • Acceptable Maintenance Organization (AMO)
    • Acceptable Materiel Support Organization (AMSO)
    • Aircraft
    • Airworthiness
    • Airworthiness Code
    • Type Certificate
    • Unmanned Aircraft
    • ALSE
    • Certificate of Conformance
    • Compliance Artefact
    • Compliance Matrix
    • Deviation from the Approved Maintenance Program
    • Equivalent Level of Safety
  • the addition of the following new definitions:
    • Airworthiness Release Certificate
    • Investigative Airworthiness Clearance
    • Waiver
  • the addition of the following new abbreviations:
    • 14 CFR – United States Title 14 Code of Federal Regulations
    • AltMoC – Alternative Means of Compliance
    • AMC – Acceptable Means of Compliance
    • AMP – Approved Maintenance Program
    • AWM – TCCA Canadian Airworthiness Manual
    • CS – Certification Specification (EASA)
    • EASA – European Union Aviation Safety Agency
    • IAC – Investigative Airworthiness Clearance
    • OA – Operational Airworthiness
    • TA – Technical Airworthiness
    • UK CAA – United Kingdom Civil Aviation Authority
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