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R86/2004 Orders/Civil Aviation as made
Replacement of section 100.90 of the Civil Aviation Orders
Administered by: Infrastructure, Transport, Cities and Regional Development
Exempt from sunsetting by the Legislation (Exemptions and Other Matters) Regulation 2015 s12 item 15
Registered 03 Mar 2005
Tabling HistoryDate
Tabled HR10-Feb-2005
Tabled Senate10-Feb-2005
Gazetted 23 Dec 2004

 

 

 

 

Civil Aviation Amendment Order

(No. R86) 2004

 

 

I, WILLIAM BRUCE BYRON, Director of Aviation Safety, on behalf of CASA, issue the following Civil Aviation Order under regulation 31 of the Civil Aviation Regulations 1988.

 

 

 

[Signed Bruce Byron]

 

 

Bruce Byron

Director of Aviation Safety and

   Chief Executive Officer

 

12 December 2004

 

__________________

 

1         Name of Order

                     This Order is the Civil Aviation Amendment Order (No. R86) 2004.

2         Commencement

                     This Order commences on gazettal.

3         Replacement of section 100.90 of the Civil Aviation Orders

                     Section 100.90 of the Civil Aviation Orders is omitted and a new section substituted as set out in Schedule 1.

 

Schedule 1        Substitution of section 100.90 of the Civil Aviation Orders

 

 

SECTION 100.90

 

ADMINISTRATION AND PROCEDURE — AIRCRAFT MAINTENANCE ENGINEER LICENCES — GENERAL REQUIREMENTS

1           APPLICATION

Except where otherwise approved or directed by CASA, this section of Civil Aviation Orders specifies the requirements under regulation 31 of the Civil Aviation Regulations 1988 for the grant or renewal of aircraft maintenance engineer licences.

2           DEFINITIONS

2.1        Terms and abbreviations used in this section of the Civil Aviation Orders and in sections 100.91 to 100.96 inclusive shall have the following meanings.

AME means aircraft maintenance engineer.

appropriate airworthiness office means the airworthiness office which has been assigned administrative control of the AME or his employer.

appropriate certificate of approval means a certificate of approval in force under regulation 30 of the CAR 1988, appropriate to the maintenance being performed.

CASA means the Civil Aviation Safety Authority.

CAO means the Civil Aviation Orders.

CAR 1988 means the Civil Aviation Regulations 1988.

category means the division or portion of an aircraft, in respect of which the licence was granted.

composite indicator means an indicator which receives, processes and/or displays information to and from both instrument and radio systems.

electrical component means any self-contained part, combination of parts, subassemblies or units, which perform an electrical function necessary to the operation of a system.

Extension 1 means a rating giving limited certification privileges within the electrical, instrument and radio categories with respect to a specific type aircraft/engineer combination for which ratings in both the airframe and engine categories of that aircraft type are already held.

Extension 2 means a rating giving limited certification privileges within the airframe, engine and radio categories with respect to a specific type aircraft/engine combination for which ratings in both the electrical and instrument categories of that aircraft type are already held.

functional test means a detailed examination in which a complete system, subsystem or component is tested to determine if it functions within the prescribed limits.

high capacity aircraft means an aircraft having a maximum seating capacity exceeding 38 passenger seats or a maximum payload exceeding 4 200 kilograms.

NDT means nondestructive testing.

operational check means the operation of a system or component to determine that it is operating normally.

primary structure means those parts of the structure which contribute significantly to carrying flight, ground or pressurisation loads, the failure of which could endanger the safety of the aircraft.

rating means an endorsement on an aircraft maintenance engineer licence made for the purpose of specifying the limits of the work to which the licence relates and which specifies the types, series or groups within the relevant category, in respect of which the privileges of the licence may be exercised.

removable item of equipment of a radio system means any part of a radio system which is designed to be readily removed from the aircraft and which is provided with fittings such as plugs, sockets and quick disconnects to facilitate its removal.

specialised test equipment means test equipment designed to perform a specific function and which requires operator training before use.

system means a combination of aircraft components and their associated wiring, plumbing, fluids, etc, which perform a specific function.

2.2        Definitions contained in the CAR 1988 have not been repeated in this subsection but such definitions must have the same meaning in this section and CAO sections 100.91 to 100.95 (inclusive) as they have in CAR 1988.

3           LICENCE CATEGORIES AND PRIVILEGES

3.1        A licence may be granted with ratings in 1 or more of the following categories:

              (a)  airframes;

              (b)  engines;

              (c)  radio systems;

              (d)  electrical systems;

              (e)  instruments.

3.2        Each category is divided into ratings, the details of which are specified in CAO sections 100.91 to 100.95, as applicable.

3.4        CASA may grant a licence or rating with such limitations as considered necessary.

3.5        The categories and privileges of licences which may be granted under this section are specified in Appendix I of this section.

6           GRANT OF A LICENCE

6.1        A licence may be granted to a person who complies with the following requirements:

              (c)  has passed the examinations and met the experience requirements specified in CAO sections 100.91 to 100.95 as applicable;

              (d)  has passed the Airworthiness Administration (AA) examination within the preceding 24 months.

Note: For the issue of an aircraft maintenance engineer licence readers must refer to regulation 31 of CAR 1988.

6.3        A licence may be granted to an applicant who is the holder of a valid licence with a rating equivalent to the rating sought, granted by the recognised authority of another country, provided that he or she:

              (b)  has passed examinations in Airworthiness Administration (AA) and basic technical knowledge as specified by CASA; and

              (d)  is able to read, write and converse in the English language.

Note: For the issue of an aircraft maintenance engineer licence to a person who holds a licence issued by the competent authority in any other country, readers must refer to subregulation 31 (6) of CAR 1988.

7           VALIDITY AND RENEWAL OF A LICENCE

7.3        A licence may be renewed if the holder:

              (a)  in the preceding 24 months has exercised the privileges of the licence for not less than 6 months; or

              (b)  has been engaged in work which may be considered by CASA as comparable with the duties and privileges pertaining to his or her licence.

Note: For the period of operation and renewal of an aircraft maintenance engineer licence, a change of address or production of a licence, readers must refer to regulations 31, 32A, 32B, 299 and 302 of CAR 1988.


APPENDIX I

AME LICENCE CATEGORIES AND PRIVILEGES

1           GENERAL

1.1        This Appendix specifies those parts of an aircraft which fall within the respective licence categories and details the limits to which the holder of a licence can certify for completion of maintenance of an Australian aircraft.

1.2        Before exercising the privileges of a licence, the holder must ensure he or she is familiar with the aircraft, engine, systems or installations and the maintenance requirements appropriate to the task for which certification is to be made.

1.4        Maintenance of an aircraft, additional to that detailed in this Appendix, may be certified to the extent specified in the relevant sections of Part 100 of the CAOs.

1.5        The category grouping classifications used in this Appendix are defined in CAO sections 100.91 to 100.95, as applicable.

1.6        Where maintenance is performed on an aircraft component, installed in an aircraft which:

              (a)  receives information; or

              (b)  processes information; or

              (c)  displays information;

             in respect of systems which require certification to be made under the privileges of 2 or more AME licence categories, a certification must be made for the completion of the maintenance in all affected AME licence categories.

1.7        Maintenance of systems or components installed in an aircraft which supply data for indication purposes must be certified by the holder of an appropriate AME licence for that system or component.

2           CATEGORY AIRFRAMES

2.1        The following parts of an aircraft constitute Category Airframes:

              (a)  aircraft structure — including engine mountings, cowlings and firewalls;

              (b)  control surfaces;

              (c)  helicopter dynamic components — excluding the engine and engine mounted gearboxes;

              (d)  flight control systems;

              (e)  hydraulic systems;

               (f)  pneumatic systems;

              (g)  air conditioning systems;

              (h)  pressurisation systems;

               (i)  airframe ice and rain protection systems;

               (j)  landing gear systems;

              (k)  fuel and liquid tanks and associated plumbing not forming a part of the engine or the engine lubricating system;

               (l)  airframe fire extinguishing systems;

             (m)  cabin and cockpit furnishings;

              (n)  windshield clear vision system;

              (o)  emergency equipment;

              (p)  all airframe system controls.

2.2        Airframes Category Privileges: With respect to maintenance of aircraft, certification of maintenance within the airframe category may be made by persons holding the appropriate airframe rating(s), with the following limitations:

              (a)  inspections using an NDT method — limited to liquid penetrant inspections utilising aerosol packed materials;

              (b)  completion of an inspection involving the use of an NDT method which has been performed and certified by a holder of a valid appropriate NDT authority;

              (c)  completion of a repair or modification that involved manual welding, including braze welding, that has been performed by a holder of a valid appropriate welding authority;

              (d)  maintenance of components which are supplied as bench tested units, installed in an aircraft — limited to inspection, replacement and adjustment of parts normally adjustable or replaceable in service where the subsequent operation may be proved without the use of test equipment additional to that normally used for functional tests on the aircraft;

              (e)  repair, modification or assembly involving the following is excluded, unless the licence holder is, or is employed by, the holder of a valid appropriate certificate of approval:

                           (i)  bolted joints requiring special techniques;

                         (ii)  riveted joints in primary structure;

                        (iii)  glued joints in primary structure;

                         (iv)  bonded joints in primary structure;

                          (v)  fibre reinforced plastic composite primary structure;

                         (vi)  fabric replacement of a complete fuselage or mainplane;

                        (vii)  static balancing of flying control surfaces, main or tail rotor assemblies;

                      (viii)  seat support braces and structures;

                         (ix)  the use of jigs (excluding control rigging tools);

                          (x)  repainting of aircraft involving any stripping by mechanical or chemical means or which may affect the balance of flying controls — other than localised res­toration of paintwork;

                         (xi)  refurbishment of aircraft interiors where the work involved affects the structure of the aircraft;

                       (xii)  the complete jacking of aircraft for the purposes of landing gear retraction tests;

                      (xiii)  the disturbing of individual parts of units which are supplied as bench tested units where subsequent functioning must be proved using test equipment additional to that used for normal functional tests or troubleshooting checks on the aircraft;

               (f)  maintenance of electrical and instrument components which form part of an airframe system, limited to:

                           (i)  on all aircraft:

                                     (A)   external mechanical adjustment to facilitate correct operation of airframe systems; and

                                     (B)   replacement of components connected by electrical plugs, terminal connections (other than soldered connections) or pipelines — but excluding those functional tests and adjustments requiring the use of external specialised test equipment; and

                         (ii)  on aircraft approved for I.F.R. operations:

                                     (A)   daily or manufacturer’s equivalent inspection; and

                                     (B)   condition and security of attachment of wiring, plumbing and components; and

                        (iii)  on aircraft approved only for V.F.R. operations — all maintenance.

2.3        Airframe Category — Electrical Category Privileges: Certification of maintenance within the electrical category may be made by persons holding the appropriate airframe rating(s), as follows:

              (a)  electrical systems classified as Electrical Group I in aircraft approved only for V.F.R. operations — all maintenance;

              (b)  electrical systems classified as Electrical Group I in aircraft approved for I.F.R. operations or electrical systems classified as Electrical Group 2 or Group 20 ­limited to;

                           (i)  daily or manufacturers’ equivalent inspection; and

                         (ii)  condition of security of attachment of wiring and components.

2.4        Airframe Category — Instrument Category Privileges: Certification of maintenance within the instrument category may be made by persons holding the appropriate airframe rating(s), as follows:

              (a)  on all aircraft:

                           (i)  oxygen systems; and

                         (ii)  compensation of direct reading magnetic compasses;

              (b)  on aircraft not classified Airframes Group 20 — approved only for V.F.R. operations:

                           (i)  instrument systems classified as Instruments Group 1 and Group 3 — all maintenance; and

                         (ii)  instrument systems classified as Instruments Group 5 to 10, limited to ­daily, or manufacturers’ equivalent inspection, and condition and security of attachment of wiring and components;

              (c)  on aircraft not classified Airframes Group 20 — approved for I.F.R. operations or instrument systems classified as Instruments Group 20, limited to:

                           (i)  daily, or manufacturers’ equivalent inspection; and

                         (ii)  condition and security of attachment of wiring, plumbing and components;

              (d)  on aircraft classified as Airframes Group 20, limited to:

                           (i)  daily or manufacturers’ equivalent inspection; and

                         (ii)  condition and security of attachment of wiring, plumbing and components.

2.5        Airframes Category — Radio Category Privileges: Certification of maintenance, excluding operational checks, within the radio category may be made by persons holding the appropriate airframe rating(s), as follows:

              (a)  on aircraft approved only for V.F.R. operation, limited to:

                           (i)  daily or manufacturers’ equivalent inspection; and

                         (ii)  condition and security of attachment of wiring and components; and

                        (iii)  replacement of removable items of equipment of radio systems; and

                         (iv)  periodic inspections;

              (b)  on aircraft approved for I.F.R. operation, limited to:

                           (i)  daily or manufacturers’ equivalent inspection; and

                         (ii)  condition and security of attachment of wiring and components.

2.6        Airframe Category — Engine Category Privileges: Certification of maintenance within the engine category on aircraft may be made by persons holding the appropriate airframe rating(s), as follows:

              (a)  daily inspection or manufacturers’ equivalent inspection;

              (b)  inspection, removal, fitting and rigging of stranded control cables;

              (c)  independent inspections.

3           CATEGORY ENGINES

3.1        The following parts of an aircraft constitute Category Engines:

              (a)  engines — including auxiliary power units;

              (b)  propellers;

              (c)  supercharging systems;

              (d)  thrust reverser systems;

              (e)  engine mounted gearboxes and attached/driven components;

               (f)  engine driven remotely mounted gearboxes, driveshafts and attached/driven components — excluding helicopter transmissions and drive shafts;

              (g)  control systems for the engine;

              (h)  airship vector thrust systems;

               (i)  engine starters;

               (j)  compressor bleed air systems;

              (k)  fuel systems — excluding the tanks and associated plumbing not forming part of the engine;

               (l)  engine lubricating systems;

             (m)  ignition systems;

              (n)  engine fire extinguishing systems;

              (o)  engine ice-protection systems;

              (p)  propeller ice-protection systems;

              (q)  engine foreign object protection systems;

               (r)  water injection and water methanol injection systems — excluding the tanks and associated plumbing;

              (s)  all engine systems controls.

3.2        Engine Ground Running: The holder of an AME licence in the engine category with a rating for the engine type or series, or the group(s) applicable to the engine and the holder of an Extension 2 rating for the applicable airframe/engine combination, may perform and certify ground running for maintenance purposes of engines installed in aeroplanes and airships. This privilege is subject to the holder of the licence having sufficient knowledge of the aircraft to enable control of the aeroplane or airship in the event of inadvertent movement and to ensure correct and safe functioning of the aircraft and its systems.

3.3        Engine Category Privileges: With respect to maintenance of aircraft, certification of maintenance within the engine category may be made by persons holding the appropriate engine rating(s) with the following limitations:

              (a)  inspections using an NDT method — limited to liquid penetrant inspections utilising aerosol packed materials;

              (b)  completion of an inspection involving the use of an NDT method which has been performed and certified by the holder of a valid appropriate NDT authority;

              (c)  completion of a repair or modification that involved manual welding, including braze welding, that has been performed by the holder of a valid appropriate welding authority;

              (d)  maintenance of components which are supplied as bench tested units, installed in aircraft — limited to inspection, replacement and adjustment of parts normally adjustable or replaceable in service where the subsequent operation may be proved without the use of test equipment additional to that normally used for functional tests on the aircraft;

              (e)  maintenance involving the following is excluded unless the licence holder is, or is employed by, the holder of a valid appropriate certificate of approval:

                           (i)  separation and assembly of a reciprocating engine crankcase;

                         (ii)  disassembly or assembly of a crankshaft of a reciprocating engine — including removal and replacement of a connecting rod;

                        (iii)  separation, disassembly and assembly of gas turbine engine main casings or rotating assemblies other than work the manufacturer specifies in the appropriate maintenance manual as line maintenance, field replacement or module unit change;

                         (iv)  removal or disassembly and replacement or reassembly of reduction gears or accessory drive gears — other than those gears attached to an accessory;

                          (v)  disassembly or assembly of propeller hubs;

                         (vi)  straightening of propeller blades;

                        (vii)  balancing of propellers;

                      (viii)  balancing of fans of turbine engines;

                         (ix)  machining — other than machining which is normally carried out with a top overhaul or which the manufacturer specifies as applicable in the appropriate maintenance manual;

                          (x)  the disturbing of individual parts of units which are supplied as bench tested units, where subsequent functioning must be proved using test equipment additional to that used for normal functional tests or troubleshooting checks of the engine in the aircraft;

               (f)  maintenance of electrical and instrument components which form part of an engine system limited to:

                           (i)  on all aircraft:

                                     (A)   external mechanical adjustment to facilitate correct operation of engine systems; and

                                     (B)   replacement of components connected by electrical plugs, terminal connections (other than soldered connections) or pipelines — but excluding those functional tests and adjustments requiring the use of external specialised test equipment; and

                         (ii)  on aircraft approved for I.F.R. operations;

                                     (A)   daily or manufacturers’ equivalent inspection; and

                                     (B)   condition and security of attachment of wiring, plumbing and components; and

                        (iii)  on aircraft approved only for V.F.R. operations — all maintenance.

3.4        Engine Category — Electrical Category Privileges: Certification of maintenance within the electrical category may be made by persons holding the appropriate engine rating(s) as follows:

              (a)  electrical systems classified as Electrical Group 1 in aircraft approved only for V.F.R. operations — all maintenance;

              (b)  electrical systems classified as Electrical Group I in aircraft approved for I.F.R. operations or electrical systems classified as Electrical Group 2 or Group 20 ­limited to:

                           (i)  daily or manufacturers’ equivalent inspection; and

                         (ii)  condition and security of attachment of wiring and components.

3.5        Engine Category — Instrument Category Privileges: Certification of maintenance within the instrument category may be made by persons holding the appropriate engine rating(s), as follows:

              (a)  on all aircraft — compensation of direct reading magnetic compasses;

              (b)  on aircraft approved only for V.F.R. operations:

                           (i)  instrument systems classified as Instrument Group 1 and Group 3 — all maintenance, excluding oxygen systems; and

                         (ii)  instrument systems classified as Instrument Groups 5 to 10, limited to daily or manufacturers’ equivalent inspection, condition and security of attachment wiring, plumbing and components;

              (c)  on aircraft approved for I.F.R. operations, limited to:

                           (i)  daily or manufacturers’ equivalent inspection; and

                         (ii)  condition and security of attachment of wiring, plumbing and components.

              (d)  on aircraft classified as Instrument Group 20, limited to:

                           (i)  daily or manufacturers’ equivalent inspection; and

                         (ii)  condition and security of attachment of wiring, plumbing and components.

3.6        Engine Category — Radio Category Privileges: Certification of maintenance, excluding operational checks, within the radio category may be made by persons holding the appropriate engine rating(s), as follows:

              (a)  on aircraft approved only for V.F.R. operations, limited to:

                           (i)  daily or manufacturers’ equivalent inspection; and

                         (ii)  condition and security of attachment of wiring and components; and

                        (iii)  replacement of removable items of equipment of radio systems;

              (b)  on aircraft approved for I.F.R. operations, limited to:

                           (i)  daily or manufacturers’ equivalent inspection; and

                         (ii)  condition and security of attachment of wiring and components.

3.7        Engine Category — Airframe Category Privileges: Certification of maintenance within the airframe category may be made by persons holding the appropriate engine rating(s), as follows:

              (a)  daily inspection or manufacturers’ equivalent inspection;

              (b)  inspection, removal and fitting of engine mountings, cowlings and firewalls;

              (c)  independent inspections.

4           CATEGORY RADIO

4.1        The following parts of an aircraft constitute Category Radio:

              (a)  radio communication systems;

              (b)  radio navigation systems;

            (ba)  satellite navigation systems;

              (c)  composite indicators — excluding indicators containing gyroscopes;

              (d)  audio distribution systems;

              (e)  cockpit voice recorder systems;

               (f)  emergency radio equipment;

              (g)  multiplex systems and data busses associated with radio systems;

              (h)  passenger entertainment systems;

               (i)  radar systems, including weather radar, radio altimeter and transponder;

               (j)  the bonding of all components of the radio system to the aircraft structure;

              (k)  the fittings securing the radio unit within its case/rack;

               (l)  the interwiring of radio components.

Note 1:    The radio wiring to the power supply of the electrical system terminates at the radio distribution bus, circuit breaker or fuse.

Note 2:    The radio wiring to equipment used by other categories terminates at the input connection to that equipment — excluding composite indicators containing gyroscopes.

4.2        Radio Category Privileges: With respect to maintenance of aircraft, certification of maintenance within the radio category may be made by persons holding a radio licence, with the following limitations:

              (a)  for radio systems in aircraft approved only for V.F.R. operations — all maintenance;

              (b)  for radio systems in aircraft approved for I.F.R. operations, where the appropriate rating is held — all maintenance;

4.3        With respect to maintenance of aircraft, certification of maintenance within the radio category may be made by persons holding the appropriate radio rating(s) with the following limitations:

              (a)  maintenance of components which are supplied as bench tested units, installed in aircraft — limited to inspection, replacement and adjustment of parts normally adjustable or replaceable in service where the subsequent operation may be proved without the use of test equipment additional to that normally used for functional tests on the aircraft;

              (b)  maintenance of a radio system which includes any of the following is excluded, unless the licence holder is, or is employed by, the holder of a valid appropriate certificate of approval:

                           (i)  the disturbing of individual parts of units which are supplied as bench tested units, where subsequent functioning must be proved using test equipment additional to that used for normal functional test on the aircraft or troubleshooting;

                         (ii)  maintenance of operational and automatic test equipment (ATE) software;

                        (iii)  initial installation or subsequent modification of a radio system.

5           CATEGORY ELECTRICAL

5.1        The following parts of an aircraft constitute Category Electrical:

              (a)  electrical power generation, storage, distribution and protection systems — including associated meters;

              (b)  lighting systems;

              (c)  fire/smoke detection systems;

              (d)  combustion heaters;

              (e)  aircraft electrical bonding;

               (f)  data busses and multiplexing systems associated with the functioning of electrical systems;

              (g)  warning indicators/annunciator panels.

5.2        Electrical Category Privileges: With respect to maintenance of aircraft, certification of maintenance within the electrical category may be made by persons holding the appropriate electrical rating with the following limitations:

              (a)  maintenance of components which are supplied as bench tested units, installed in aircraft — limited to inspection, replacement and adjustment of parts normally adjustable or replaceable in service where the subsequent operation may be proved without the use of test equipment additional to that normally used for functional tests on the aircraft;

              (b)  maintenance of an electrical system which includes any of the following is excluded unless the licence holder is, or is employed by, the holder of a valid appropriate certificate of approval:

                           (i)  the disturbing of individual parts of units which are supplied as bench tested units, where subsequent functioning must be proved using test equipment additional to that used for normal functional tests on the aircraft or troubleshooting;

                         (ii)  maintenance of operational and automatic test equipment (ATE) software;

                        (iii)  initial installation or subsequent modification of an electrical system.

5.3        Electrical Category — Instrument Category Privileges: Certification of maintenance within the instruments category may be made by persons holding the appropriate electrical rating — limited to maintenance of interwiring, excluding functional tests of instrument systems required after maintenance.

5.4        Electrical Category — Airframe/Engine Categories Privileges: Certification of maintenance within the airframe or engine category may be made by persons holding the appropriate electrical rating, limited to electrical components and wiring.

5.5        Electrical Category — Radio Category Privileges: Certification of maintenance, excluding operational checks, within the radio category may be made by persons holding the appropriate electrical rating as follows:

              (a)  on aircraft approved only for V.F.R. operations limited to:

                           (i)  security of attachment of wiring and components; and

                         (ii)  replacement of removeable items of equipment of radio systems;

              (b)  on aircraft approved for I.F.R. operations — limited to security of attachment of wiring and components.

6           CATEGORY INSTRUMENTS

6.1        The following parts of an aircraft constitute Category Instruments:

              (a)  all indicating system instruments, composite indicators, and plumbing — excluding radio system indicating equipment and electrical meters;

              (b)  instrument wiring;

              (c)  automatic flight control systems;

              (d)  integrated flight systems;

              (e)  flight performance management systems;

               (f)  pitot static systems;

              (g)  air data systems;

              (h)  oxygen systems;

               (i)  inertial navigation/inertial reference systems;

               (j)  data busses and multiplexing systems associated with instrument systems;

              (k)  flight data recorder systems;

               (l)  ground proximity warning systems — excluding radio inputs;

             (m)  stall warning/indicating systems;

              (n)  electronically displayed check lists — excluding radar displays.

Note 1: The instrument system wiring to the electrical power supply terminates at the distribution bus, circuit breaker or fuse.

Note 2: The instrument system wiring supplying data signals to the radio system terminates at the connection to the radio system equipment or junction box.

6.2        Instrument Category Privileges: With respect to maintenance of aircraft, certification of maintenance within the instrument category may be made by persons holding the appropriate instrument rating(s) with the following limitations:

              (a)  maintenance of components which are supplied as bench tested units, installed in aircraft — limited to inspection, replacement and adjustment of parts normally adjustable or replaceable in service where the subsequent operation may be proved without the use of test equipment additional to that normally used for functional tests on the aircraft;

              (b)  maintenance of an instrument system which includes any of the following is excluded unless the licence holder is, or is employed by, the holder of a valid appropriate certificate of approval:

                           (i)  the disturbing of individual parts of units which are supplied as bench tested units, where subsequent functioning must be proved using test equipment additional to that used for normal functional test on the aircraft or troubleshooting;

                         (ii)  maintenance of operational and automatic test equipment (ATE) software;

                        (iii)  initial installation or subsequent modification of an instrument system.

6.3        Instrument Category — Electrical Category Privileges: Certification of maintenance within the electrical category may be made by persons holding the appropriate instrument rating(s) — limited to maintenance of interwiring, but excluding functional tests of electrical sys­tems required after maintenance.

6.4        Instrument Category — Airframe Category Privileges: Certification of maintenance within the airframe category, may be made by persons holding the appropriate instrument rating(s), as follows:

              (a)  on all aircraft — limited to instrument components;

              (b)  on aircraft not classified Group 20, where a Group 10 rating is held — limited to pressurisation control systems;

              (c)  on aircraft classified Group 20 — limited to pressurisation control systems.

6.5        Instrument Category — Engine Category Privileges: Certification of maintenance within the engine category, may be made by persons holding the appropriate instrument rating(s) — limited to instrument components.

6.6        Instrument Category — Radio Category Privileges: Certification of maintenance, excluding operational checks, within the radio category may be made by persons holding the appropriate instrument rating(s) as follows:

              (a)  on aircraft approved only for V.F.R. operations limited to:

                           (i)  security of attachment of wiring and components; and

                         (ii)  replacement of removeable items of equipment of radio systems;

              (b)  on aircraft approved for I.F.R. operations — limited to security of attachment of wiring and components.

7           EXTENSIONS

7.1        With respect to maintenance of aircraft, certification of maintenance on aircraft may be made by persons holding an Extension 1 rating as follows:

              (a)  Category Electrical: Certification of maintenance in Category Electrical in the aircraft/engine combination for which the extension is rated, is limited to:

                           (i)  daily and in transit inspections, or manufacturers/operators equivalent inspections; and

                         (ii)  inspections for condition and security of attachment of wiring and components; and

                        (iii)  replacement, functional check and adjustment of components (but excluding maintenance of operational and automatic test equipment software) where the subsequent operation may be proved without the use of specialised test equipment which is in addition to that normally used for functional checks on the air­craft; and

                         (iv)  minor repair and replacement of interwiring;

              (b)  Category Instruments: Certification of maintenance in Category Instruments in the aircraft/engine combination for which the extension is rated, is limited to:

                           (i)  daily and in transit inspections, or manufacturers/operators equivalent inspections; and

                         (ii)  inspections for condition and security of attachment of wiring, plumbing and components; and

                        (iii)  replacement, functional check and adjustment of components (but excluding maintenance of operational and automatic test equipment software) where the subsequent operation may be proved without the use of specialised test equipment which is in addition to that normally used for functional checks on the aircraft; and

                         (iv)  minor repair and replacement of interwiring;

              (c)  Category Radio: Certification of maintenance in Category Radio in the aircraft/ engine combination for which the extension is rated is limited to:

                           (i)  daily and in transit inspections, or manufacturers/operators equivalent inspections; and

                         (ii)  inspections for condition and security of attachment of wiring and components; and

                        (iii)  minor repair and replacement of interwiring; and

                         (iv)  the replacement of components (but excluding system testing other than ‘BITE’ tests, maintenance of operational and automatic test equipment software).

7.2        With respect to maintenance of aircraft, certification of maintenance on aircraft may be made by persons holding an Extension 2 rating as follows:

              (a)  Category Airframes: Certification of maintenance in Category Airframes in the aircraft/engine combination for which the extension is rated, is limited to:

                           (i)  daily, in transit, conditional inspections, or manufacturers/ operators equivalent inspections; and

                         (ii)  inspections for condition and security of attachment of wiring, plumbing, components and structure; and

                        (iii)  replacement, functional check and adjustment of components, where the subsequent operation can be proved without the use of specialised test equipment which is in addition to that normally used for functional checks on the aircraft — excluding- replacement repairs and adjustment to all flight control systems and any rectification to landing gear that requires rigging; and

                         (iv)  repair and replacement of interwiring; and

                          (v)  minor repairs to non-primary structure; and

                         (vi)  minor repairs to plumbing;

              (b)  Category Engines: Certification of maintenance in Category Engines in the aircraft/engine combination for which the extension is rated, is limited to:

                           (i)  daily, in transit, conditional inspections, or manufacturers/ operators equivalent inspections; and

                         (ii)  inspections for condition and security of attachment of wiring, plumbing and components; and

                        (iii)  replacement, functional check and adjustment of components, where the subsequent operation can be proved without the use of specialised test equipment which is in addition to that normally used for functional checks on the aircraft and engine — excluding engine change and engine adjustments that will effect the engine performance; and

                         (iv)  repair and replacement of interwiring; and

                          (v)  minor repairs to cowling, plumbing and fairings;

              (c)  Category Radio: Certification of maintenance in Category Radio in the aircraft/engine combination for which the extension is rated, is limited to:

                           (i)  daily and in transit, inspections, or manufacturers/operators equivalent inspections; and

                         (ii)  inspections for condition and security of attachment of wiring and components; and

                        (iii)  repair and replacement of interwiring; and

                         (iv)  the replacement of components (but excluding system testing other than ‘BITE’ tests, maintenance of operational and automatic test equipment software).