Commonwealth legislation

AD/BEECH 55/69 Amdt 2 - Rudder Pedal Arms

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This Act has been repealed and is no longer in force. It is retained for historical reference.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 applies to Beechcraft 55, 58, and 95-55 Barons with rudder pedal arms part number 50-524326. It mandates fluorescent dye penetrant inspections of the upper rudder pedal arms (I‑beam, hollow crossbar and brake attach areas) to detect cracks.

Inspections must be done before the next maintenance release after Oct 31, 1987, then every 12 months, and after any >3‑month parked period with pedals locked. Cracked pedals can fail and cause loss of directional control; parking with pedals locked or towing can provoke cracking.

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AD/BEECH 55/69 Amdt 2 - Rudder Pedal Arms

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Beechcraft 55, 58 and 95-55 (Baron) Series Aeroplanes

AD/BEECH 55/69

Amdt 2

Rudder Pedal Arms 4/95

Applicability: All models fitted with rudder pedal arms P/N 50-524326, all dash numbers.

Requirement: Inspect the upper portion of each rudder pedal arm for cracks, using the fluorescent dye penetrant method in accordance with CAO 108.10. The area to be inspected includes the upper part of the “I” section shank, the hollow crossbar and the brake pedal attachment lugs. Particular attention must be paid to the fillet radii and holes.

Compliance: 1. Initially inspect before the issue of the next maintenance release after 31 October 1987. Re-inspect at intervals not to exceed 12 months.

Inspect before flight if the aircraft has been parked for more than 3 months with the rudder pedals locked.

Note: The Maintenance Manual prohibits towing with the rudder pedals locked. This practice may also cause premature cracking.

Background: A review of cracked rudder pedals suggests that the primary cause of cracking is wind loads when the aircraft is parked on the ground with the rudder pedals locked, normal operating loads being a secondary factor. The inspection interval is now based on calendar time, special provision is made for aircraft parked in the open for long periods and a warning has been added about correct towing practice.

Source text

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

1 AD/BEECH 55/69 Amdt 2 - Rudder Pedal Arms