Commonwealth legislation

AD/B747/39 Amdt 2 - Nacelle Strut Diagonal Brace Fuse Pin

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

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This directive requires all Boeing 747 operators to carry out inspections and any required corrective action on nacelle strut diagonal brace fuse pins in accordance with FAA AD 93-03-14 as adopted in the Requirement Document, effective 21 April 1993. It responds to in-service cracking reports and changes maintenance obligations. Operators pay for inspections and repairs; CASA mandates compliance. Amendment 1 added repetitive inspections for additional pins, and Amendment 2 corrects textual errors in the FAA document.

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Current sections

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AD/B747/39 Amdt 2 - Nacelle Strut Diagonal Brace Fuse Pin

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/B747/39

Amdt 2

Nacelle Strut Diagonal Brace Fuse Pin 6/93

Applicability: Boeing 747 aircraft all models.

Requirement: Action IAW the technical requirements of FAA AD 93-03-14 Amdt 39-8518.

Note: Note Boeing SBs 747-54-2066 Rev. 2, 747-54-2101 Rev. 1 and ASB 747-54-

A2153 refer.

Compliance: As specified in the Requirement Document with a revised effective date of 21 April 1993.

Compliance for the initial issue of this Directive was in accordance with SB 747-54- 2101, and the effective date for Amendment 1 was 04 March 1993.

Background: The manufacturer had received reports of in service cracking of the inboard nacelle strut diagonal brace fuse pins. Amendment 1 was raised in response to the issue of a new FAA AD which combined the requirements of two previous ADs and added repetitive inspections of forward and aft bottle pins in the outboard nacelle strut and the aft bulkhead fuse pins in the inboard and the outboard nacelle struts. Amendment 2 is raised as the result of textural errors in FAA AD 93-01-05 which is superseded by the current Requirement Document.

Source text

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

1 AD/B747/39 Amdt 2 - Nacelle Strut Diagonal Brace Fuse Pin