Commonwealth legislation

AD/B747/105 - Engine Strut Power Feeder/Fuel Tube Clearance

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive requires operators of certain Boeing 747s to follow Boeing SB 747-24A2168 R1 to inspect and, if needed, correct clearance between an engine‑strut fuel tube and an electrical power feeder cable to prevent chafing‑induced arcing and fire. It sets near‑term Phase 1 repetitive inspections and a Phase 2 terminating corrective action by specified dates. It affects 747 operators and maintenance providers and shifts inspection/repair costs to operators.

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Current sections

Direct links to the current provisions in AD/B747/105 - Engine Strut Power Feeder/Fuel Tube Clearance.

AD/B747/105 - Engine Strut Power Feeder/Fuel Tube Clearance

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Boeing 747 Series Aeroplanes

AD/B747/105 Engine Strut Power Feeder/Fuel Tube Clearance 3/92

Applicability: As specified in the requirement document. Requirement: Action in accordance with Boeing SB 747-24A2168 R1.

Note: FAA AD T91-20-51 also refers.

Compliance: Phase 1 - prior to 16 March 1992, and thereafter at intervals specified in Boeing SB 747-24A2168 R1 as determined by the results of the Phase inspection.

Phase 2 - Prior to 16 March 1993.

Note: Compliance with Phase 2 constitutes terminating action for the repetitive inspections required by Phase 1.

Background: Boeing have advised that a fire in number two engine strut of a Boeing 747-400 has been attributed to a hole in No 2 strut fuel tube caused by electrical arcing resulting from chafing between the fuel tube and the electrical power feeder cable. This condition may exist on other models of Boeing 747 aircraft.

Source text

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

1 AD/B747/105 - Engine Strut Power Feeder/Fuel Tube Clearance