Commonwealth legislation

AD/B747/240 - Air Conditioning Duct Insulation

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD requires operators of specified Boeing 747 line-number aircraft to rework or replace air‑conditioning (ECS) duct insulation in accordance with FAA AD 2000‑26‑05, to be completed before 19 April 2007. It became effective 19 April 2001.

CASA (through its delegate) mandates the work; aircraft operators bear the cost and must schedule maintenance. The stated safety objective is to prevent ignition and fire propagation of external fibreglass insulation on ECS ducts.

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/B747/240 - Air Conditioning Duct Insulation.

AIRWORTHINESS DIRECTIVE

View image in the official source

View image in the official source
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Boeing 747 Series Aeroplanes

AD/B747/240 Air Conditioning Duct Insula

AD/B747/240 Air Conditioning Duct Insulation 4/2001

Applicability: Model 747 series aircraft having the line numbers listed in the requirement document.

Requirement: Rework duct assemblies or replace existing duct assemblies with new or reworked items in accordance with the technical requirements of FAA AD 2000-26-05 Amdt 39-12055.

Compliance: Before 19 April 2007.

This Airworthiness Directive becomes effective on 19 April 2001.

Background: An FAA AD has been raised to prevent potential ignition of fibreglass insulation material installed on the outside of the Environmental control system (ECS) ducts, which could propagate a small fire and lead to a larger fire.

Signature of David Villiers, Delegate of the Civil Aviation Safety Authority.

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 5 March 2001

View image in the official source

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Boeing 747 Series Aeroplanes

AD/B747/240 Air Conditioning Duct Insula AD/B747/240 Air Conditioning Duct Insulation 4/2001

AD/B747/240 Air Conditioning Duct Insulation 4/2001

Applicability: Model 747 series aircraft having the line numbers listed in the requirement document.

Requirement: Rework duct assemblies or replace existing duct assemblies with new or reworked items in accordance with the technical requirements of FAA AD 2000-26-05 Amdt 39-12055.

Compliance: Before 19 April 2007.

This Airworthiness Directive becomes effective on 19 April 2001.

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 5 March 2001