AD/CL-600/84 Fuselage Pressure Floor Skin (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 (Canadair) CL-600 (Challenger) Series Aeroplanes
| AD/CL-600/84 | Fuselage Pressure Floor Skin | 9/2007 |
Applicability: | Model CL-600-2B19 aircraft, serial numbers 7003 through 7999. |
Requirement: | Action in accordance with the requirements of Transport Canada AD CF-2002-39. |
Compliance: | As specified in the Requirement document, with a revised effective date of |
| This Airworthiness Directive becomes effective on 30 August 2007. | |
Background: | Cracks were detected on the fuselage pressure floor skin at fuselage stations 460 and 513 on several Regional Jet in-service aircraft. Failure of the pressure floor skin, which is a principal structural element, could result in rapid decompression of the aircraft. |
David Villiers
Delegate of the Civil Aviation Safety Authority
11 July 2007
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