Bombardier (Canadair) CL-600 (Challenger
Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes
Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes
| AD/CL-600/113 | Passenger Door Corrosion | 8/2009 |
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| Applicability: | Model CL-600-2B19 aircraft, serial numbers 7003 through 8089Model CL-600-2C10 aircraft, serial numbers 10003 through 10265Model CL-600-2D15 and CL-600-2D24 aircraft, serial numbers 15001 through 15173 |
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| Requirement: | Action in accordance with the requirements of Transport Canada AD CF-2009-23. |
| Compliance: | Before the accumulation of 15,000 flight hours or within 5,000 flight hours after30 July 2009, whichever occurs later; unless already accomplished. |
| This Airworthiness Directive becomes effective on 30 July 2009. | |
| Background: | Several cases of corrosion in lower structural members of the passenger door have been reported. It was subsequently determined that a drainage ramp (constructed from resin) had deteriorated with time and was retaining moisture. The ramp, therefore, requires removal, both to prevent further corrosion and to allow access to the door structure during future scheduled inspections. Corrosion left undetected could eventually affect the structural integrity of the door and surrounding structure. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
18 June 2009