Commonwealth legislation

AD/PA-31/109 - Landing Gear Upper Bearing Retaining Pins and Strut Assemblies

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This AD requires owners/operators of the Piper PA-31 aircraft identified by serial number in Piper Service Bulletin No. 779A to replace landing‑gear upper bearing retaining pins and inspect (replacing if needed) the upper bearing per that Service Bulletin, within 100 hours TIS after 31 October 1985.

It aims to prevent failure that could allow uncontrolled extension of the piston tube and wheel assemblies; owners/operators bear parts, labour and downtime costs.

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AD/PA-31/109 - Landing Gear Upper Bearing Retaining Pins and Strut Assemblies

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Piper PA-31 Series Aeroplanes

AD/PA-31/109 Landing Gear Upper Bearing Retaining

Pins and Strut Assemblies

Applicability: All model PA-31 with S/Nos as listed in Piper Service Bulletin No. 779A. Requirement: Action in accordance with Piper S.B. No 779A.

Note: FAA AD 85-08-05 refers.

Compliance: Within 100 hours time in service after 31 October 1985.

8/85

Background: Failure of landing gear upper bearing retaining pins could result in unrestricted extension of the piston tube and wheel assemblies.

This Directive requires the replacement of the retaining pins and, in addition, an inspection and replacement of the upper bearing as applicable.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.