Commonwealth legislation

AD/BELL 206/77 - Tail Rotor Drive Shaft - Replacement of Bearing Hangars

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive mandates one‑time replacement of the tail‑rotor drive‑shaft bearing hangars on specified Bell/Agusta 206‑series helicopters, to be done by the next 1,200‑hour inspection after 31 Jan 1979 using one of three referenced service documents. It applies to listed serial‑numbered aircraft and affects owners/operators and maintenance providers; compliance is mandatory, costs and scheduling fall to operators and may create short‑term demand for parts and labour.

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Direct links to the current provisions in AD/BELL 206/77 - Tail Rotor Drive Shaft - Replacement of Bearing Hangars.

AD/BELL 206/77 - Tail Rotor Drive Shaft - Replacement of Bearing Hangars

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters

AD/BELL 206/77 Tail Rotor Drive Shaft - Replacement

of Bearing Hangars

12/78

Applicability: Models 206A, 206B, AB206 & AB206B with S/Nos. as per Requirement Doc’s. Document: 1. Bell SB No. 206-77-9; or

2. FAA AD 78-16-01 Amendment 39-3271; or

3. Agusta SB No. BT206-123.

Compliance: No later than the next scheduled 1200 hourly inspection completed after 31 January 1979.

Background: AD/Agusta 206/61 equivalent.

Source text

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