Commonwealth legislation

AD/PA-31/29 - Elevator Balance Weight Attach Bolts - 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This Act has been repealed and is no longer in force. It is retained for historical reference.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 directive orders a one-time safety inspection of the bolts that hold the elevator balance weights in place on specific Piper aircraft.

Who it affects: Owners and operators of Piper PA-31-350 aeroplanes with specific serial numbers (ranging from 31-5001 to particular numbers in the 31-7305xxx series).

What you must do: Within 100 hours of flight time after 31 January 1974, you must inspect the bolts that attach the elevator balance weights. The elevator is the movable part of the tail that controls whether the aircraft pitches up or down. Balance weights are counterweights that prevent dangerous flutter or vibration. If these bolts fail, the weights could detach.

Why it matters: Detached balance weights can cause severe control problems or structural failure, potentially leading to loss of the aircraft.

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AD/PA-31/29 - Elevator Balance Weight Attach Bolts - 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-31 Series Aeroplanes

AD/PA-31/29 Elevator Balance Weight Attach Bolts - Inspection 1/74

Applicability: All model PA-31-350 with S/Nos. 31-5001 to 31-7305079, 31-7305081 to 31-

7305089, 31-7305094, 31-7305096 to 31-7305099; and 31-7305102.

Document: Piper SL No. 681.

Compliance: Within 100 hours time in service after 31 January 1974.

Source text

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