Commonwealth legislation

AD/B727/144 Amdt 1 - Wing Centre Section Front Spar Web

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Requires repetitive inspections and a new terminating modification for the wing centre section front spar web on certain Boeing 727 aeroplanes, implemented by adopting the technical requirements of FAA AD 2000-02-19. Applies to aircraft listed in Boeing Service Bulletin 727-57-0177. The measure is aimed at detecting and fixing cracks that could cause fuel leakage or cabin depressurisation.

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/B727/144 Amdt 1 - Wing Centre Section Front Spar Web.

AD/B727/144 Amdt 1 - Wing Centre Section Front Spar Web

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
View image in the official source
Boeing 727 Series Aeroplanes

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 revokes Airworthiness Directive (AD) AD/B727/144 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.

AD/B727/144

Amdt 1

Wing Centre Section Front Spar Web 4/2000

Applicability: Model 727 series aircraft, as listed in Boeing Service Bulletin 727-57-0177, dated 22 December 1988.

Requirement: Action in accordance with the technical requirements of FAA AD 2000-02-19 Amdt 39-11537.

Compliance: As specified in the Requirement document for the repetitive inspections and modification action, with a revised effective date of 20 April 2000.

This Amendment becomes effective on 20 April 2000.

Background: Fleet experience had shown that there was a possibility of cracks developing in the wing centre section front spar web, if not corrected could lead to fuel leakage or depressurisation of the cabin.

Amendment 1 is issued in response to a new FAA AD which was prompted by a report indicating that the optional terminating modification in the existing FAA AD does not adequately address the identified unsafe condition. This amendment requires a new terminating modification for the repetitive inspections.

The original issue of this Airworthiness Directive became effective on 3 March 2000.

Signature of Bernard Malcolm Hole, Delegate of the Civil Aviation Safety Authority.

Bernard Malcolm Hole

Delegate of the Civil Aviation Safety Authority 9 March 2000

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 22 March 2000.

Source text

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

1 AD/B727/144 Amdt 1 - Wing Centre Section Front Spar Web

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Boeing 727 Series Aeroplanes

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B727/144 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.

AD/B727/144

Amdt 1

Wing Centre Section Front Spar Web 4/2000

Applicability: Model 727 series aircraft, as listed in Boeing Service Bulletin 727-57-0177, dated 22 December 1988.

Requirement: Action in accordance with the technical requirements of FAA AD 2000-02-19 Amdt 39-11537.

Compliance: As specified in the Requirement document for the repetitive inspections and modification action, with a revised effective date of 20 April 2000.

This Amendment becomes effective on 20 April 2000.

The original issue of this Airworthiness Directive became effective on 3 March 2000.

Bernard Malcolm Hole

Delegate of the Civil Aviation Safety Authority 9 March 2000

The above AD is notified in the Commonwealth of Australia Gazette on 22 March 2000.