Commonwealth legislation

AD/PA-25/24 - Elevator Control Cable Rear Turnbuckles - 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This Act has been repealed and is no longer in force. It is retained for historical reference.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

1/10 complexity

What this does: This is a maintenance safety rule for a specific type of aircraft—the Piper PA-25 Pawnee (a single-engine plane often used for crop-dusting and towing gliders). It mandates a one-time inspection of the elevator control system.

Who it affects: Owners and operators of all Piper PA-25 model aircraft.

What must be done: Inspect the rear turnbuckles (adjustable metal tensioning devices) on the elevator control cables. The inspector must verify that these turnbuckles have enough clearance and can move freely without snagging on the elevator bungee links (rubber shock-absorbing connectors that dampen control movements).

Why it matters: If a turnbuckle catches or binds against a bungee link, it could restrict or jam the elevator (the flap on the tail that controls the plane's pitch). This creates a risk of losing control of the aircraft's nose-up or nose-down attitude.

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AD/PA-25/24 - Elevator Control Cable Rear Turnbuckles - 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-25 (Pawnee) Series Aeroplanes

AD/PA-25/24 Elevator Control Cable Rear Turnbuckles - Inspection

11/67

Applicability: All models.

Requirement: Inspect the elevator control cable rear turnbuckles to ensure that they have adequate clearance and movement under all condition on the elevator bungee links.

Compliance: Before 1 September 1971.

Source text

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