Commonwealth legislation

AD/BEA 121/27 Amdt 2 - Control Column Handgrips

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This Act has been repealed and is no longer in force. It is retained for historical reference.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 directive requires owners/operators of Beagle B121 (Pup) aircraft in Australia to replace the LH control column handgrip by 13 July 1991 and the RH by 13 September 1991, following British Aerospace Service Bulletin B121/95 Revision 2.

It responds to cracking and in‑flight failures of the original plastic grips (BE-45-10283) in high‑UV conditions; grips are now treated as lifed items and must be replaced every five years because inspections and NDT cannot reliably predict imminent failure.

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Current sections

Direct links to the current provisions in AD/BEA 121/27 Amdt 2 - Control Column Handgrips.

AD/BEA 121/27 Amdt 2 - Control Column Handgrips

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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 Beagle B121 (Pup) Series Aeroplanes

AD/BEA 121/27

Amdt 2

Applicability: All models.

Control Column Handgrips 6/91

Requirement: Action in accordance with Mandatory British Aerospace SB B121/95 Revision 2.

Compliance: As specified in the Requirement Document with revised accomplishment dates for Australian registered aircraft of 13 July 1991 and 13 September 1991; for respective LH and RH handgrip replacement.

Background: Cases have been reported of fractures of the handgrips (Part No. BE-45-10283) fitted to the control columns of bulldog aircraft. These handgrips are identical to those fitted to Pup aircraft. Failures may be more likely on aircraft operating in climates susceptible to high levels of ultraviolet radiation.

Amendment 1 was raised in response to two recent occurrences of in flight failure of the control column handgrips during aerobatics. The failed handgrips had no evidence of surface cracking. This amendment introduces revised inspection procedures to ensure that the handgrips are airworthy.

Further testing has established that non destructive inspection is not adequate to detect degradation of strength. The handgrips are now lifed at five years.

Source text

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