| (1) | The privileges of an AMO with a Category A rating approval shall be limited to aero plane for which the approval is rated and shall be— |
| (a) | to release to service an aeroplane, excluding its engine or engines; |
| (b) | to certify in the manner prescribed in the regulations— |
| (i) | work required by maintenance programme relating to an aircraft; |
| (ii) | assembly of an aeroplane and any adjustment or minor modification of an aero plane; |
| (iii) | installation or replacement of completed sub-assemblies, equipment, instruments and minor components of an aircraft, excluding its engine or engines; and |
| (iv) | to release to service an aircraft, excluding its engine or engines, for a test flight. |
| (2) | For the purpose of subregulation (1)(b)(iii), a completed sub-assembly comprises a unit built up of individual components to form a complete unit which may include a wing, aileron, landing gear shock strut, wheel, complete landing gear, tail plane, fin, rudder and elevator. |
| (3) | The privileges of an AMO approval with a Category B rating shall be limited to aircraft for which the approval is rated and shall be— |
| (a) | to certify in the manner prescribed in the regulations— |
| (i) | any overhaul, repair or modification of an aircraft, excluding its engine or engines, except— |
| (aa) | overhaul, repair or modification of such item, equipment or apparatus which is to be certified by a holder of an approval with a Category X rating; and |
| (bb) | installation and testing of such instrument, electrical equipment or radio apparatus which is to be certified by a holder of an approval with a Category W rating; and |
| (ii) | manufacturing of components and parts in accordance with the appropriate approved specifications as prescribed in Part 21, if such manufacturing of components and parts is necessary for a holder of the approval to complete a repair, modification or overhaul which it will certify; |
| (b) | in respect of an aeroplane for which the approval is rated under Category A, to release to service such aeroplane, excluding its engine or engines; and |
| (c) | in respect of rotorcraft for which the approval is rated under Category E, to release to service a rotorcraft, excluding its engine or engines. |
| (4) | The privileges of an AMO approval with a Category C rating shall be limited to engines for which an approval is rated and shall be— |
| (a) | to release to service an engine installed in an aeroplane; |
| (b) | to certify in the manner prescribed in the regulations— |
| (i) | work required by a maintenance programme of an aeroplane; |
| (ii) | the installation of an engine in an aeroplane; |
| (iii) | any adjustment or minor modification of an aeroplane engine and replacement of external components and of piston and cylinder assemblies; |
| (iv) | the overhaul and testing of spark plugs; and |
| (v) | any installation and maintenance, other than the overhaul, major modification or major repair, of propellers and the reassembly of variable pitch propellers which may have been dismantled for transport purposes; and |
| (c) | to release to service an aero plane engine for a test flight. |
| (5) | The privileges of an AMO approval with a Category D rating shall be limited to engines for which an approval is rated and shall be— |
| (a) | to release to service an engine; and |
| (b) | to certify in the manner prescribed in the regulations— |
| (i) | any overhaul, repair or modification of an engine or its accessories , except the overhaul, repair or modification of ignition equipment other than the spark plugs, and of a propeller, starter and generator, which is to be certified by the holder of an approval with a Category X rating; and |
| (ii) | manufacturing of components and parts in accordance with the appropriate approved specifications as prescribed in Part 21, if the manufacturing of components and parts are necessary for a holder of approval to complete a repair, modification or overhaul, which it will certify. |
| (6) | The privileges of an AMO approval with a Category E rating shall be limited to rotorcraft for which the approval is rated and shall be— |
| (a) | to release to service a rotorcraft; |
| (b) | to certify in the manner provided for in this Part— |
| (i) | work prescribed by a maintenance programme relating to a rotorcraft; |
| (ii) | assembly of a rotorcraft and any adjustment or minor modification of a rotorcraft; |
| (iii) | installation or replacement of completed subassemblies, equipment, instruments and minor components of a rotorcraft; |
| (iv) | any adjustment or minor modification of a rotorcraft engine and the replacement of external components and of piston and cylinder assemblies; |
| (v) | overhaul and testing of spark plugs; and |
| (vi) | any installation and maintenance, other than the overhaul, major modification or major repair, of rotors and the re-assembly of rotors which may have been dismantled for trans port purposes; and |
| (c) | to release to service a rotorcraft for a test flight. |
| (7) | The privileges of an AMO approval with a Category W rating shall be limited to equipment for which an approval is rated and shall be— |
| (a) | to release equipment to service; and |
| (b) | to certify in the manner provided for in this Part— |
| (i) | work prescribed by a maintenance programme relating to aircraft; |
| (ii) | any adjustment, maintenance or modification of such equipment; and |
| (iii) | any installation of such equipment in aircraft and replacement of components and parts of such equipment: Provided that no equipment shall be dismantled for the purpose of making internal replacements. |
| (8) | The privileges of an AMO approval with a Category X rating shall be limited to aircraft equipment, instruments, components, auxiliaries or parts for which the approval is rated and shall be— |
| (a) | to release to service the aircraft equipment, instruments, components, auxiliaries or parts; and |
| (b) | to certify in the manner prescribed in the regulations— |
| (i) | their overhaul, repair , testing and modification ; and |
| (ii) | the manufacturing of components and parts in accordance with the appropriate approved specifications as prescribed i n Part 21, if the manufacturing of such components and parts are necessary for a holder of the approval to complete a repair, overhaul, test or modification which it will certify. |
[Regulation 145.02.8 substituted by regulation 41(b) of Notice No. R.1503, GG45491, dated 15 November 2021 (Twenty-First Amendment of the Civil Aviation Regulations, 2021)]
