AD/TSA-600/34 - Hydraulic System Internal Leak Check
1AD/TSA-600/34 - Hydraulic System Internal Leak Check
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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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Aerostar (Piper/Ted Smith) 600 and 700 Series Aeroplanes
AD/TSA-600/34 Hydraulic System Internal Leak Check 11/85
Applicability: All models not fitted with an auxiliary hydraulic pump system.
Requirement: With the aircraft on jacks, ensure that with the undercarriage fully retracted, the flap selector lever in neutral and the hydraulic pressure selected off, the landing gear remains in the fully retracted position for a minimum period of 30 minutes.
Compliance: Prior to the issue of the next Maintenance Release after 31 December 1985 and thereafter at each issue of a new Maintenance Release.
Background: In the event of a R/H engine failure in flight, the landing gear may automatically extend to the locked down position if an internal leak was present in the hydraulic system.