AD/BAe 146/50 - Generator Control Unit
1AD/BAe 146/50 - Generator Control Unit
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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British Aerospace BAe 146 Series Aeroplanes
AD/BAe 146/50 Generator Control Unit 8/94
Applicability: All series BAe 146 aircraft.
Requirement: Action in accordance with Avro International Aerospace Mandatory Inspection Service Bulletin S.B.24-103 dated 24 March 1994.
Note: CAA(UK) AD 014-03-94 refers.
Compliance: Prior to 30 November 1994.
Background: The CAA(UK) have advised that investigation of in-service generator control unit (GCU) failures has highlighted the possibility that GCUs repaired or rectified by workshops other than GEC-Marconi, may have the under-frequency trip level set too high. This Directive requires the one time inspection of GCUs for possible incorrect under-frequency trip level settings and, if necessary, adjustment of the settings. The CAA(UK) compliance time is extended by two calendar months.