Document ID: chunk:federal_register_of_legislation:F2025C00150:front:0:p10
Version: federal_register_of_legislation:F2025C00150
Segment Type: other
Provision Reference: 
Character Range: 28875–35784

the relevant optional units of competency mentioned in section 66.A.25 of this MOS; or
                                                                                                                                                 Note   These optional units of competency are marked W in Appendix IV.
                                                                                                                                                    (b) for fabric surfaces — the holder has obtained the relevant optional units of competency mentioned in section 66.A.25 of this MOS.
                                                                                                                                                 Note   These optional units of competency are marked Z in Appendix IV.
                                                                                                                                                 Structures — general
                                                                                                                                                    (c) for a category B2 licence — closing of cowlings and refitment of quick access inspection panels.
Doors (ATA52)                                                                                           Structural (B1)
Fuselage (ATA53)                                                                                        Structural (B1)
Nacelles and pylons (ATA54)                                                                             Structural (B1)
Stabilisers (ATA55)                                                                                     Structural (B1)
Windows (ATA56)                                                                                         Structural (B1)
Wings (ATA57)                                                                                           Structural (B1)
Propeller — rotor (ATA60)                                                                               Mechanical (B1)
Propeller — propulsion (ATA61)                                                                          Powerplant (B1)                          For a Category B1 licence, only if the holder has obtained the relevant optional units of competency mentioned in section 66.A.25 of this MOS.
                                                                                                                                                 Note   These optional units of competency are marked P in Appendix IV.
Rotor (ATA62)                                                                                           Mechanical (B1)
Rotor drives (ATA63)                                                                                    Mechanical (B1)
Tail rotor (ATA64)                                                                                      Mechanical (B1)
Tail rotor drive (ATA65)                                                                                Mechanical (B1)
Folding blades and pylon (ATA66)                                                                        Mechanical (B1)
Rotor flight control (ATA67)                                                                            Mechanical (B1)
Powerplant (ATA71)                                                                                      Powerplant (B1)
Engine turbine/                                                                                         Powerplant (B1)
turbo-prop and fans (ATA72)
Engine-mounted accessories: gear boxes, gears, pumps and attached engine‑mounted and driven components  Powerplant (B1)
(ATA72-60)
Engine fuel and control — carbura-tion/injection system (ATA73)                                         Powerplant (B1)
FADEC (ATA73A)                                                                                          Avionic (B2)
Ignition system (ATA74)                                                                                 Powerplant (B1)
Air systems and control (ATA75)                                                                         Powerplant (B1)
Engine control system (ATA76)                                                                           Powerplant (B1)
Engine indicating system (ATA77)                                                                        Powerplant (B1) and Avionic (B2)
Exhaust — thrust reverser (ATA78)                                                                       Powerplant (B1)
Lubrication system (ATA79)                                                                              Powerplant (B1)
Starting system (ATA80)                                                                                 Powerplant (B1)
Supercharging system (ATA81)                                                                            Powerplant (B1)
Power augmentation (ATA82)                                                                              Powerplant (B1)
Accessory drives (ATA83)                                                                                Powerplant (B1)

66.A.21 Transitional privileges
        Despite Table 1 in section 66.A.20 and the exclusions annotated on a licence issued under Part 66 of CASR 1998, a person mentioned in a cell in column 1 of Table 2, who holds a Category B1 licence, may perform maintenance certifications and issue certificates of release to service for the maintenance mentioned for the person in the corresponding cell or cells in column 2, but only:
1. for an aircraft mentioned in the corresponding cell in column 3; and
2. subject to the limitations (if any) mentioned in the corresponding cell in column 4; and
3. subject to the condition mentioned in column 5.

Table 2
Person                                                                                                                                                                                                                                                                                                                                 Maintenance                 Aircraft                                                                                                        Limitations          Condition
A.                                                                                                                                                                                                                                                                                                                                     All electrical maintenance  An aircraft approved for V.F.R. operations only (approved V.F.R. aircraft), and fitted with a single generator  Not applicable (NA)  Provided that the old licence and its ratings applied to the maintenance, or would have applied to the maintenance but for Part 66 of CASR