AD/B737/191 Amdt 1 - Strut Insulation Blankets (Cth)

AIRWORTHINESS DIRECTIVE On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B737/191 and issues the following 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/B737/191 Amdt 1 Strut Insulation Blankets 13/2008

Applicability: Model 737-600, -700, -700C, -800, and -900 series aircraft, as identified in Boeing Special Attention Service Bulletin 737-54-1045 dated 25 July 2007, or later FAA approved revision. Requirement: Action in accordance with the technical requirements of FAA AD 2008-21-02 Amdt 39-15686. Compliance: As specified in the Requirement document, with a revised effective date of 18 December 2008. This Amendment becomes effective on 18 December 2008. Background: The FAA received reports of damaged engine aft strut insulation blankets. Such damage could result in exposure of the lower surface of the strut to extreme high temperatures, consequent creation of a source of fuel ignition, and increased risk of a fuel tank explosion and fire.

Amendment 1 is issued in response to a new FAA AD, which adds aircraft to the applicability and requires installation of a new insulation blanket and new cover plate on the left and right side engine struts.