Document ID: chunk:federal_register_of_legislation:F2025C00150:front:0:p1
Version: federal_register_of_legislation:F2025C00150
Segment Type: other
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Character Range: 0–4953

Part 66 Manual of Standards (MOS) (as amended)

made under regulation 66.015 of the Civil Aviation Safety Regulations 1998.
This compilation was prepared on 10 February 2025 taking into account amendments up Part 66 Manual of Standards Amendment Instrument 2024 (No. 1). It is a compilation of the Part 66 Manual of Standards (MOS), as amended and in force on 10 February 2025.
Prepared by the Legal Services Branch, Legal, International and Regulatory Affairs Division, Civil Aviation Safety Authority, Canberra.
Compilation No. 26

Contents
    Page

      Part 1 Preliminary........................................................2
66.1A...Name of instrument...................................................2
66.1....Scope.............................................................2
66.5....Definitions..........................................................2
66.6....Meaning of hold, or obtain, a unit of competency..............................5
66.A.1..Aircraft engineer licence................................................5
      Part 2 Aircraft engineer licences for type-rated aircraft etc..........................6
66.A.4..Certain type-rated aircraft types and endorsements etc..........................6
66.A.10..Application — form...................................................6
66.A.20..Privileges..........................................................6
66.A.21..Transitional privileges.................................................14
66.A.23..Requalification requirements............................................15
66.A.25..Basic knowledge and competency requirements.............................16
66.A.30..Basic practical experience requirements...................................18
66.A.35..Exclusions to which a category B1 or category B2 licence may be subject...........22
66.A.45..Type/task training and ratings...........................................23
66.A.50..Aircraft type practical training...........................................25
66.A.55..On the Job aircraft type Training.........................................26
      66.A.56 Repealed sections 66.A.56 and 66.A.57...................................26
66.A.60..Recognised States...................................................27
66.A.65..Excluded States.....................................................27
66.A.70..Removal of exclusions................................................27
      Part 3 Transitional provisions..............................................28
66.A.100.Transitional provision for Part 66 Manual of Standards Amendment
Instrument 2018 (No. 1)...............................................28
       Appendix I.........................................................29
........Appendix II........................................................97
........Appendix III.......................................................101
........Appendix IV.......................................................115
........Appendix V.......................................................124
........Appendix VI.......................................................125
........Appendix VII......................................................126
........Appendix VIII......................................................131
........Appendix IX.......................................................138
........Appendix X.......................................................167
       Notes to Part 66 Manual of Standards (MOS)...............................183

      Part 1 Preliminary

       66.1A Name of instrument
        This instrument is the Part 66 Manual of Standards (MOS).

       66.1 Scope
       (a) This is the MOS for Part 66 of the Civil Aviation Safety Regulations 1998 (CASR 1998).
       (b) This MOS sets out the requirements for the issue of an aircraft engineer licence and other requirements or privileges associated with the licence.

       66.5 Definitions
      (a) Unless otherwise defined in this MOS, words and phrases have the same meaning as in Part 66 of CASR 1998.
       (b) In this MOS:
AMC/GM for CASR Part 66 means the CASA publication titled Acceptable Means of Compliance (AMC) and Guidance Material (GM) CASR Part 66, as existing from time to time.
AME licence means an aircraft maintenance engineer (AME) licence under regulation 31 of CAR 1988 as in force immediately before 27 June 2011.
APU means auxiliary power unit.
ATA means Air Transport Association of America.
Note   ATA is a publication referencing standard, commonly used for all commercial aircraft documentation.
avionic LRU, or avionic line replaceable unit, is an aircraft avionic part that satisfies all of the following requirements:
1. it must have no mechanical input from, or output to, another part or mechanism;
2. it must contain only electrical, electronic, instrument or radio parts, or software, or a combination of any such part or parts and software, designed to provide control, monitor