Commonwealth legislation

AD/R22/47 - Fuel Tank Vent System

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Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Owners/operators of Robinson R22 helicopters (S/N 0002–1451, excluding aircraft overhauled by Robinson after Jan 1991) must inspect the fuel tank vent system and, if needed, modify it per Robinson Service Bulletin No. 84. Compliance was required within 25 hours TIS or 30 days of the 14 Oct 1998 effective date. The action addresses fuel-vent kinking that can cause uncommanded engine power loss; operators will incur compliance costs.

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AD/R22/47 - Fuel Tank Vent System

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Robinson R22 Series Helicopters

AD/R22/47 Fuel Tank Vent System 13/98 DM

Applicability: R22 helicopters S/Nos. 0002 through 1451 except aircraft overhauled by Robinson after January 1991.

Requirement: Inspect, and modify if required, the fuel tank vent system in accordance with Robinson R22 Service Bulletin No. 84.

Note 1: FAA Priority Letter AD 98-21-09 also refers.

Note 2: Robinson Service Bulletin No. 83 also addresses fuel tank vent system modification.

Compliance: Within 25 hours time in service, or 30 days, from the effective date of this Directive, whichever occurs first.

This Airworthiness Directive becomes effective on 14 October 1998

Background: This directive is prompted by reports of uncommanded loss of engine power on R22 helicopters. The power loss events have been attributed to kinking of the fuel tank vent system.

Source text

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

1 AD/R22/47 - Fuel Tank Vent System