Commonwealth legislation

AD/B737/151 - Air Conditioning Duct Insulation

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires operators of Boeing 737-300/‑400/‑500 aircraft (specific line numbers listed) to rework or replace external air‑conditioning (ECS) duct assemblies because fibreglass insulation on the ducts could ignite (Applicability; Requirement; Background). The mandated work must follow the technical instructions of FAA AD 2000‑26‑05 and be completed before 19 April 2007. Operators pay for parts and labour, must follow the FAA-specified maintenance method, and comply under CASA’s authority (Compliance; delegate signature).

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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.

AD/B737/151 Air Conditioning Duct Insula

AD/B737/151 Air Conditioning Duct Insulation 4/2001

Applicability: Model 737-300, -400 and -500 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

The above AD is notified in the Commonwealth of Australia Gazette on 21 March 2001.

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.

AD/B737/151 Air Conditioning Duct Insula AD/B737/151 Air Conditioning Duct Insulation 4/2001

AD/B737/151 Air Conditioning Duct Insulation 4/2001

Applicability: Model 737-300, -400 and -500 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

The above AD is notified in the Commonwealth of Australia Gazette on 21 March 2001.