Commonwealth legislation

AD/B747/208 - Wing Front Spar Web at Inboard Engine Struts

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

Requires operators of specified Boeing 747‑100/200/SP aircraft to perform initial and repetitive inspections of the wing front spar web at the inboard engine struts by following FAA AD 99‑10‑09 and Boeing Service Bulletin 747‑57A2303 Rev 1. CASA made the directive effective 12 August 1999.

This responds to FAA reports of fatigue cracks on the aft surface of the spar web that could cause fuel leaks and increase fire risk; the aircraft operator bears the compliance burden.

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AD/B747/208 - Wing Front Spar Web at Inboard Engine Struts

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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 Boeing 747 Series Aeroplanes

AD/B747/208 Wing Front Spar Web at Inboard Engine Struts 8/99

Applicability: Model 747-100, 747-200, and 747-SP series aircraft; as listed in Boeing Service Bulletin 747-57A2303 Revision 1.

Requirement: Action in accordance with the technical requirements of FAA AD 99-10-09 Amdt 39- 11162.

Compliance: As specified in the Requirement Document for the initial and repetitive inspection requirements with a revised effective date of 12 August 1999.

This Airworthiness Directive becomes effective on 12 August 1999.

Background: The FAA received reports of fatigue cracks on the aft surface of the wing front spar web. Such fatigue cracking could result in a fuel leak, and consequent increased risk of fire.

Source text

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