AD/B737/267 Aft Engine Mount Secondary Support (Cth)

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 39.001(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.

Boeing 737 Series Aeroplanes

AD/B737/267 Aft Engine Mount Secondary Support 13/2005

Applicability:	All Model 737-100, -200, and -200C series aircraft.
Requirement:	Action in accordance with the technical requirements of FAA AD 99-26-07 Amdt 39-11466.
Compliance:	As specified in the Requirement document.
This Airworthiness Directive becomes effective on 22 December 2005.
Background:	This Directive requires inspections to detect missing nuts and/or damaged secondary support hardware adjacent to the aft engine mount, and eventual terminating action.  The Directive was prompted by the FAA’s determination that the repetitive inspections may not be providing the degree of safety assurance necessary for the transport aircraft fleet.

David Villiers
Delegate of the Civil Aviation Safety Authority

11 November 2005