Commonwealth legislation

AD/B737/171 - Elevator Hinge Plates

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

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This Airworthiness Directive requires operators of Boeing 737‑600, ‑700 and ‑800 series aeroplanes (line numbers 1–84) to carry out the technical inspections and corrective actions set out in FAA AD 2001‑23‑01 to address accelerated wear of elevator hinge plates caused by spoiler buffeting. The measure is effective 21 February 2002. Operators must perform the FAA-prescribed inspections/repairs (Boeing Service Bulletin referenced) to prevent fatigue cracking and possible loss of elevator attachment; the compliance cost and work fall on aircraft owners/operators.

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Current sections

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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 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.

Boeing 737 Series Aeroplanes

AD/B737/171 Elevator Hinge Plates 2/2002

Applicability: Model 737-600, -700, and -800 series aircraft, with line numbers 1 through 84. Requirement: Action in accordance with the technical requirements of FAA AD 2001-23-01 Amdt

39-12498.

Note: Boeing Service Bulletin 737-55-1067 refers.

Compliance: As specified in the requirement document, with a revised effective date of 21 February 2002.

This Airworthiness Directive becomes effective on 21 February 2002.

Background: The FAA received a report that, during flight testing of Model 737-600, -700, and

-800 series aircraft, the elevator hinge plates at elevator hinges 3, 4, 5, 6, 7, and 8 experienced higher than expected loads due to buffeting by the spoiler. The higher loads reduce the service life of the elevator hinge plates, and a reduced service life could result in fatigue cracking and lead to loss of attachment of the elevator to the horizontal stabiliser.

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

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 20 December 2001

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 30 January 2002.

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 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.

Boeing 737 Series Aeroplanes