Commonwealth legislation

AD/BAe 146/53 Amdt 3 - APU Bay Forward Firewall

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Requires inspections of the APU bay forward firewall on affected BAe 146 and Avro 146‑RJ aeroplanes that have modification HCM36019A, following BAE Systems Mandatory Service Bulletin 26‑035 Revision 2. It sets an initial inspection deadline (before 19 July 1995) and recurring intervals (≤200 cycles until embodiment of Mod 26‑36‑36179A; thereafter every 500 cycles after embodiment of 26‑36‑36179B). The directive responds to reported cracking and imposes an operator compliance obligation.

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Current sections

Direct links to the current provisions in AD/BAe 146/53 Amdt 3 - APU Bay Forward Firewall.

AD/BAe 146/53 Amdt 3 - APU Bay Forward Firewall

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AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/BAe 146/53 Amdt 2 and issues the following 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 aircraft or 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.

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British Aerospace BAe 146 Series Aeroplanes

AD/BAe 146/53

Amdt 3

APU Bay Forward Firewall 5/2002

Applicability: All Series BAe 146 aircraft and all Avro 146-RJ aircraft, which have embodied Modification HCM36019A.

Requirement: Action in accordance with BAE Systems Mandatory Service Bulletin 26-035 Revision 2.

Note: UK CAA AD 007-05-95 refers.

Compliance: Before 19 July 1995 for the initial inspection, and thereafter at intervals not to exceed 200 cycles until the embodiment of Modification Service Bulletin 26-035-36179A, or; every 500 cycles after embodiment of 26-36-36179B.

The compliance time for the initial inspection requirement remains unchanged by this issue.

This Airworthiness Directive becomes effective on 16 May 2002.

Background: Reports have been received of cracking on the forward face of the APU bay forward firewall bulkhead.

Amendment 1 introduced Modification 26-36-36179B to the compliance requirements.

Amendment 2 deleted reference to the Garrett APU installation in the applicability, as this Directive requires an inspection of the firewall regardless of APU type.

Amendment 3 is issued in response to a revision of the Requirement document, which changes the compliance inspection interval of 400 cycles to 500 cycles.

Amendment 2 of this Airworthiness Directive became effective on 23 May 1996 Amendment 1 of this Airworthiness Directive became effective on. 7 December 1995.

British Aerospace BAe 146 Series Aeroplanes

AD/BAe 146/53 Amdt 3 (Continued)

The original issue of this Airworthiness Directive became effective on 19 July 1995.

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

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 27 March 2002

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The above AD is notified in the Commonwealth of Australia Gazette on 24 April 2002.

Source text

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

1 AD/BAe 146/53 Amdt 3 - APU Bay Forward Firewall

AIRWORTHINESS DIRECTIVE

British Aerospace BAe 146 Series Aeroplanes

AD/BAe 146/53

Amdt 3

APU Bay Forward Firewall 5/2002

Applicability: All Series BAe 146 aircraft and all Avro 146-RJ aircraft, which have embodied Modification HCM36019A.

Requirement: Action in accordance with BAE Systems Mandatory Service Bulletin 26-035 Revision 2.

Note: UK CAA AD 007-05-95 refers.

The compliance time for the initial inspection requirement remains unchanged by this issue.

This Airworthiness Directive becomes effective on 16 May 2002.

Background: Reports have been received of cracking on the forward face of the APU bay forward firewall bulkhead.

Amendment 1 introduced Modification 26-36-36179B to the compliance requirements.

Amendment 2 deleted reference to the Garrett APU installation in the applicability, as this Directive requires an inspection of the firewall regardless of APU type.

Amendment 3 is issued in response to a revision of the Requirement document, which changes the compliance inspection interval of 400 cycles to 500 cycles.

Amendment 2 of this Airworthiness Directive became effective on 23 May 1996 Amendment 1 of this Airworthiness Directive became effective on. 7 December 1995.

British Aerospace BAe 146 Series Aeroplanes

AD/BAe 146/53 Amdt 3 (Continued)

The original issue of this Airworthiness Directive became effective on 19 July 1995.