Commonwealth legislation

AD/BELL 212/41 - Pitch Change Link Universal

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

This Airworthiness Directive requires a one‑time inspection of the pitch change link universal (P/N 204‑011‑128‑1) on Bell 212 helicopters to check staking marks around each bearing face. If a universal has six staking marks it must be removed and destroyed; fewer than six marks are acceptable.

It affects operators of Bell 212s with that part installed after April 1989, prompted by Army findings that six‑mark universals developed cracks from hydrogen embrittlement.

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AD/BELL 212/41 - Pitch Change Link Universal

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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 Bell Helicopter Textron 212 Series Helicopters

AD/BELL 212/41 Pitch Change Link Universal 11/89

Applicability: All models fitted with universals P/N 204-011-128-1 after 1 April 1989.

Requirement: Carry out a one time inspection of the P/N 204-011-128-1 universal for staking marks around each bearing face. If the universal has 6 staking marks around each bearing remove from service and destroy universal.

Note: Bell OSN 212-89-19 refers.

Compliance: By 30 September 1989. Thereafter prior to installation.

Background: The U.S. Army has detected cracks, due to hydrogen embrittlement, around the staking marks used to retain bearings within the universal. This Directive is raised to ensure defective new universals are not fitted to civil aircraft.

Source text

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