Commonwealth legislation

AD/R22/44 - V Belt Upper Sheave

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

Requires inspection or corrective action on specified upper V-belt sheaves (P/N A170-1 or -2 Rev I/J) fitted to Robinson R22 helicopters within 100 flight hours of 15 August 1996 or by 20 November 1996. Affects owners/operators of those R22s, who must carry out actions described in Robinson Service Bulletin SB‑77 because cracked sheaves have been reported and could lead to drive‑system failure.

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AD/R22/44 - V Belt Upper Sheave

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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 Robinson R22 Series Helicopters

AD/R22/44 V Belt Upper Sheave 9/96

Applicability: All R22 helicopters fitted with P/N A170-1 or -2 Revision I or J sheaves. These sheaves were originally installed on R22 helicopters S/N 1441 through 2096 and on overhauled R22s completed from May 1990 through May 1992.

Requirement: Unless previously carried out action in accordance with Robinson Service Bulletin SB-77.

Note: FAA AD 96-09-29 Amdt 39-9605 refers.

Compliance: Within 100 hours time in service from 15 August 1996 or by 20 November 1996, whichever occurs first.

Background: The manufacturer has advised that cracked sheaves have been reported and, if not detected in time, failure of a cracked sheave could lead to a catastrophic failure of the drive system.

Source text

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