COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cockpit Voice and Flight Data Recording Systems
AD/REC/3 Sundstrand Cockpit Voice Recorders - Modification 2/93
Applicability: Sundstrand Data Control Cockpit Voice Recorder Models AV-557, AV-557A, AV-557B and AV-557C.
Requirement: Modify in accordance with the technical requirements of:
- Sundstrand Data Control Service Bulletin No 012-0296-109 Revision 1 dated 18 June 1982, or later revision, for part numbers 980-6005-054 to -058 inclusive and 980-6005-074 to -078 inclusive, and
2. Sundstrand Data Control Service Bulletin No 012-0129-113 Revision 1 dated 20 June 1982, or later revision, for part numbers 980-6005-010 to -013 inclusive, 980- 6005-020 to -023 inclusive, 980-6005-050 to -053 inclusive and 680-6005-060 to - 063 inclusive.
Note: FAA Airworthiness Directive 83-16-01 Amendment 39-4075 refers.
Compliance: The compliance of the original Directive was within 2000 hours time in service after 12 September 1983. This Directive becomes effective on 4 February 1993.
Note: This Directive was originally issued as CAO 107 AD/RAD/42, prior compliance with that Directive is considered compliance with this Directive.
Background: Under conditions of vibration, connectors with split-ring sockets may cause CVRs to operate intermittently, give erroneous self test indications and contribute to sensor or tape-off-reel problems. Replacements are full ring sockets.