AD/B747/214 Amdt 3 - Thrust Reverser Checks (Cth)

AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B747/214 Amdt 2 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.

Boeing 747 Series Aeroplanes

AD/B747/214 Amdt 3

Thrust Reverser Checks 7/2002

Applicability: Model 747-100B, -200, -300 and 747SP series aeroplanes, equipped with Rolls Royce RB211-524B2, C2 and D4 engines as listed in the following Service Bulletins:

Boeing Alert Service Bulletin 747-78A2148 dated 1 June 1995; and Boeing Service Bulletin 747-78A2148, Revision 1 dated 20 July 1995; and Boeing Service Bulletin 747-78-2136 dated 11 May 1995; and Boeing Service Bulletin 747-78-2156 dated 31 October 1996.

Boeing Service Bulletin 747-78-2156 Revision 1 dated 30 August 2001.

Requirement: Unless already modified in accordance with Requirement 4, carry out all of the following requirements. Aeroplanes modified in accordance with Requirement 4 remain subject to the requirements and repeat inspections specified in Requirements 5, 6 & 7.

1. Carryout and successfully accomplish the applicable inspections and tests of the thrust reverser control and indication system on each engine in accordance with Part III.A through III.G of the Accomplishment Instructions of Boeing Alert Service Bulletin 747-78A2148, or Boeing Service Bulletin 747-78A2148 Revision 1.