AD/DHC-8/126 - Spoiler Cable Disconnect Sensing System (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.

Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes AD/DHC-8/126 Spoiler Cable Disconnect Sensing System 8/2006

Applicability: DHC-8 Models 102, 103, 106, 201, 202, 301, 311, 314 and 315 aircraft, serial numbers (S/N) 003 through 599 inclusive. Requirement: 1. For aircraft S/N 124, 131, 137 and 140 through 561 inclusive - Incorporate Modsum 8Q100898 to install the spoiler cable disconnect sensing device. Bombardier Service Bulletin 8-27-89, Revision E, dated 27 January 2005, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada, provides approved instructions for incorporating Modsum 8Q100898 (See Note 2). 2. For aircraft S/N 003 through 123 inclusive, 125 through 130 inclusive, 132 through 136 inclusive, 138 and 139 - Incorporate Modsums 8Q100898 and 8Q101443 to install the spoiler cable disconnect sensing device and to correct potential spoiler cable interference condition. Bombardier Service Bulletin 8-27-89, Revision E, dated 27 January 2005, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada, provides approved instructions for incorporating Modsums 8Q100898 and 8Q101443 (See Notes 2 and 3). 3. For aircraft S/N 003 through 599: a. Incorporate Modsum 8Q101445 to rework the spoiler cable disconnect sensing circuit. Bombardier Service Bulletin 8-27-103, Revision A, dated 12 February 2004, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada, provides approved instructions for incorporating Modsum 8Q101445 (See Note 4). b. If Modsum 8Q100898 has not yet been incorporated, incorporate Modsum 8Q101445 in conjunction with Modsum 8Q100898 (refer to Requirements 1 and 2 of this Directive, as applicable) (See Note 4).