Document ID: chunk:federal_register_of_legislation:F2005B00932:body:0:p9
Version: federal_register_of_legislation:F2005B00932
Segment Type: other
Provision Reference: 
Character Range: 22370–25663

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