Commonwealth legislation

AD/B767/131 Amdt 2 - Canted Pressure Deck Drain System

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Airworthiness Directive requires operators of Boeing 767 aeroplanes (line numbers 1–723) to modify the canted pressure deck drain system to stop fluid leaking into the wheel well and forming ice, by following the technical requirements of FAA AD 2000-22-11 and Boeing Service Bulletin 767-51A0020 (Revisions 1–3). (Applicability; Requirement). Operators must complete the modification within 36 months of 25 January 2001 and therefore bear the cost, scheduling and maintenance downtime. (Compliance).

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AD/B767/131 Amdt 2 - Canted Pressure Deck Drain System

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AIRWORTHINESS DIRECTIVE

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For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B767/131 Amdt 1. and issues the following AD under subregulation 39.1 (1) of CASR 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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Boeing 767 Series Aeroplanes

AD/B767/131

Amdt 2

Canted Pressure Deck Drain System 10/2003

Applicability: Model 767 series aircraft, line numbers 1 through 723.

Requirement: Modify in accordance with the technical requirements of FAA AD 2000-22-11 Amdt 39-11957. The modification may be accomplished in accordance with Revision 1, 2 or 3 of Boeing SB 767-51A0020.

Note: No re-work is required for aircraft that have been modified in accordance with the initial issue, Revision 1 or Revision 2 of the Service Bulletin.

Compliance: Within 36 months after 25 January 2001.

The Compliance time remains unchanged by this issue. This Amendment becomes effective on 6 August 2003.

Background: The FAA received reports of ice accumulation on the aileron control cables and on the main landing gear door and door seal during flight, due to fluid entering the canted pressure deck area, leaking into the main landing gear wheel well and freezing. This Directive requires certain actions to prevent such ice accumulation, which could render one of the aileron control systems and/or main landing gear doors inoperative, resulting in reduced controllability of the aircraft.

Amendment 1 was issued to introduce a note that later approved revisions of the Service Bulletins are available, which will satisfy the technical requirements of FAA AD 2000-22-11.

Amendment 2 is issued because FAA AD 2000-22-11 Amdt 39-11957 only allows the use of SB 767-51A0020 Revision 1 to accomplish the modification. Since the FAA AD’s release, later revisions of the referenced Service Bulletin have been released by Boeing and the FAA AD has not been amended to reflect this. This Amendment allows the use of the later revisions of the Service Bulletin to accomplish the modification whilst still satisfying the requirements of the FAA Airworthiness Directive.

Amendment 1 of this Airworthiness Directive became effective on 7 August 2003.

Boeing 767 Series Aeroplanes

AD/B767/131 Amdt 2 (continued)

The original issue of this Airworthiness Directive became effective on 25 January 2001.

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

David Villiers

Delegate of the Civil Aviation Safety Authority 28 July 2003

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The above AD is notified in the Commonwealth of Australia Gazette on 6 August 2003.

Source text

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

1 AD/B767/131 Amdt 2 - Canted Pressure Deck Drain System

AIRWORTHINESS DIRECTIVE

Boeing 767 Series Aeroplanes

AD/B767/131

Amdt 2

Canted Pressure Deck Drain System 10/2003

Applicability: Model 767 series aircraft, line numbers 1 through 723.

Note: No re-work is required for aircraft that have been modified in accordance with the initial issue, Revision 1 or Revision 2 of the Service Bulletin.

Compliance: Within 36 months after 25 January 2001.

The Compliance time remains unchanged by this issue. This Amendment becomes effective on 6 August 2003.

Amendment 1 was issued to introduce a note that later approved revisions of the Service Bulletins are available, which will satisfy the technical requirements of FAA AD 2000-22-11.