AD/AC/93 Amdt 2 - Wing to Fuselage Attachment (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/AC/93 Amdt 1 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.

Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600 and 700) Series Aeroplanes AD/AC/93 Amdt 2 Wing to Fuselage Attachment 5/2008

Applicability: All models, all serial numbers. Requirement: 1. For all aircraft except models 520 and 560, gain access to, and inspect, the wing forward attachment brackets and straps (left and right wing) in accordance with PART 1 of Twin Commander Service Bulletin (SB) 223, dated October 24, 1996 as amended by Revision Notice No. 1, dated May 8, 1997 and Revision Notice No. 2, dated August 18, 1997. Replace any cracked part or repair the aircraft using an approved scheme.

Note 1: The access holes specified in SB 223 are not mandatory. Alternative access provisions installed in the aircraft in accordance with a CAR 35 approved scheme are acceptable, provided that sufficient access to carry out the required inspections is available. For aircraft modified with a titanium leading edge, by way of an STC, installation of access holes in the leading edge is not possible. It will be necessary to remove the wing root fairing to accomplish the inspection on these aircraft.