AD/B737/74 - Thrust Reverser Actuator Piston Seal
1AD/B737/74 - Thrust Reverser Actuator Piston Seal
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Boeing 737 Series Aeroplanes
AD/B737/74 Thrust Reverser Actuator Piston Seal 2/93
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Applicability: Boeing 737-300,-400 and -500 series aeroplanes as listed in Boeing Service Bulletin 737-78A1055, dated 2 April 1992.
Note: FAA AD 92-24-04 refers.
Requirement: Action in accordance with Boeing Service Bulletin 737-78A1055 dated 2 April 1992. Compliance: By 1 January 1994.
Background: Analysis by the manufacturer indicates that a potential exists for leakage across the piston seal in the thrust reverser actuator. The actions specified in this AD are intended to prevent uncommanded deployment.