Commonwealth legislation

AD/B737/47 - Left Engine Fuel Feed Tube

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Commonwealth

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legislative instrument

Plain English Summary

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Requires operators of Boeing 737-300 and 737-400 aeroplanes listed in Boeing Service Bulletin 737-28-1084 to inspect or replace the left engine fuel feed tube and verify minimum clearance, using the specified Boeing service bulletins. Compliance deadlines are set (inspection by 31 Jan 1991; replacements by 30 Apr 1991). Operators are responsible for carrying out and funding the work and scheduling compliance. The directive responds to reported chafing that could lead to fuel leakage and an engine-strut fire hazard.

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AD/B737/47 - Left Engine Fuel Feed Tube

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Boeing 737 Series Aeroplanes

AD/B737/47 Left Engine Fuel Feed Tube 11/90

Applicability: Model 737-300 and 737-400 series, listed in Boeing Service Bulletin 737-28-1084. Requirement: Unless already accomplished, action one of the following:

Inspect the left engine fuel feed tube assembly for proper clearance and chafing in accordance with Boeing Service Bulletin 737-28-1055 Revision 1.

2. Replace the left engine fuel feed tube assembly in accordance with Boeing Service Bulletin 737-28-1084, and verify minimum clearance between support structure and fuel tube in accordance with Boeing Service Bulletin 737-28-1055 Revision 1.

3. Replace the left engine fuel feed tube assembly in accordance with Boeing Service Bulletin 737-28-1084, and verify minimum clearance in accordance with Boeing Service Bulletin 737-28-1084 Revision 1.

Note: FAA AD 90-15-03 Amdt 39-6650 refers.

Compliance: 1. Prior to 31 January 1991.

2. Prior to 30 April 1991.

3. Prior to 30 April 1991.

Background: Reports of chafing of the left engine fuel feed tube in the wing/strut area have been received by the FAA. This condition could result in fuel leakage causing a potential engine strut fire hazard.

Source text

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

1 AD/B737/47 - Left Engine Fuel Feed Tube