Commonwealth legislation

AD/B747/49 - Vertical Fin Access Cover Installation

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

Operators of Boeing 747s with line numbers up to 625 must install a vertical fin access cover per Boeing Service Bulletin 747-53A2264 by 30 November 1986.

The AD mandates this modification because the FAA found that a failed aft pressure bulkhead could over‑pressurise and risk structural failure of the vertical fin; owners/operators bear the cost and scheduling of the work.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/B747/49 - Vertical Fin Access Cover Installation.

AD/B747/49 - Vertical Fin Access Cover Installation

meta-content-style-type: text/css meta-content-type: application/xhtml+xml; charset=utf-8 meta-generator: Aspose.Words for .NET 22.10.0

?xml version="1.0" encoding="utf-8" standalone="no"?>

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/B747/49 Vertical Fin Access Cover Installation 6/86

Applicability: All models with line numbers to 625.

Requirement: Action in accordance with Boeing SB 747-53A2264.

Note: FAA AD 86-08-02 refers.

Compliance: Prior to 30 November 1986.

Background: The FAA has determined that the vertical fin could be over pressurised to the point of structural failure in the event of failure of the aft pressure bulkhead.

Source text

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