Commonwealth legislation

AD/PA-34/16 Amdt 1 - Wing Spar Lower Tension Strap - Inspection

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This Airworthiness Directive (AD) mandates safety inspections for specific Piper PA-34 Seneca aircraft (serial numbers 34-7250001 to 34-7450082).

What it requires:

Inspection of wing spar lower tension straps — critical structural components that help hold the wings together
Frequency: Every 100 hours of flight time ("time in service")
First deadline: Within 100 hours of flying after 31 December 1975 (unless already inspected under the previous directive DCA/PA-34/16)

Who it affects:

Owners and operators of the specified Piper Seneca models
Maintenance organisations servicing these aircraft

Why it matters: This prevents structural failure in the wing assembly. The technical details of how to perform the inspection are contained in Piper Service Bulletin No. 437A, which is referenced but not reproduced in this directive.

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Current sections

Direct links to the current provisions in AD/PA-34/16 Amdt 1 - Wing Spar Lower Tension Strap - Inspection.

AD/PA-34/16 Amdt 1 - Wing Spar Lower Tension Strap - Inspection

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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-34 (Seneca) Series Aeroplanes

AD/PA-34/16

Amdt 1

Wing Spar Lower Tension Strap - Inspection 12/75

Applicability: All model PA-34 with S/Nos. 34-7250001 to 34-7450082. Document: Piper SB No. 437A.

Compliance: Unless already inspected in accordance with DCA/PA-34/16 within 100 hours time in service after 31 December 1975. Thereafter at intervals not exceeding 100 hours time in service.

Source text

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