Document ID: chunk:federal_register_of_legislation:F2016L00369:body:0:p1
Version: federal_register_of_legislation:F2016L00369
Segment Type: other
Provision Reference: 
Character Range: 0–3250

AIRWORTHINESS DIRECTIVE
On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below repeals Airworthiness Directive (AD) AD/REC/1 Amdt 3 and issues the following AD under subregulation 39.001 (1) of CASR 1998 and subsection 33 (3) of the Acts Interpretation Act 1901. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct an unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Cockpit Voice and Flight Data Recording Systems
AD/REC/1 Amdt 4  Maintenance of Cockpit   7/2016
                 Voice Recording Systems

Applicability:  For aircraft to which Part 42 of CASR 1998 applies:
                All aircraft with cockpit voice recording systems installed in compliance with Civil Aviation Order 20.18 (CAO 20.18).
Requirement:    Check and functionally test the cockpit voice recorder installation as follows:
                   1. Confirm the proper recording of:
                     (a) voice communications transmitted from, or received in, the aircraft by radio; and
                     (b) all conversation, audio signals from alerting or warning devices and general sounds on the flight deck; and
                     (c) voice communications of flight crew members on the flight deck, using the aircraft's interphone system; and
                     (d) voice or audio signals identifying navigation or approach aids introduced into a headset or speaker; and
                     (e) voice communications of flight crew to cabin crew and/or passengers using the passenger address system, if a recording channel has been utilised.
                   2. Confirm the proper functioning of the bulk erase inhibit logic.
                   3. Maintain the underwater locating device, if fitted, in accordance with the manufacturer's requirements.
                   4. Check the operation of crash sensor switches, in accordance with the manufacturer's procedures, in installations incorporating these switches in the cockpit voice recorder power feed.
Compliance:     For requirements 1, 2, 3 and 4, after 1 July 1988:
                   1. For equipment utilising analogue technology (tape based), at intervals not exceeding 12 months or 2 000 hours time in service, whichever occurs first; or
                   2. For equipment utilising digital technology (solid state based), at intervals not exceeding 24 calendar months; or
                   3. At intervals in accordance with an approved maintenance program for the aircraft under regulation 42.140 of CASR 1998. The approved maintenance program must incorporate instructions, mentioned in requirements 1, 2, 3 and 4 of this AD, for the maintenance of the cockpit voice recorder.
                This AD commences on 23 March 2016.
Background:     The maintenance procedures presently applied to some cockpit voice recording systems have been shown to be