Bombardier (Boeing Canada/De Havilland)
Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes
Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes
| AD/DHC-8/123 | Brake Control Cable | 7/2006 |
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| Applicability: | Bombardier Inc. DHC-8 Aircraft Models 400, 401 and 402, serial numbers 4003, 4004, 4006, 4008 through 4064, 4072 and 4073. |
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| Requirement: | Carry out the following in accordance with Bombardier Service Bulletin (SB)84-53-37, Revision A, dated 17 October 2005, or later revisions approved by Transport Canada:1. Perform a visual inspection of the outboard brake control cable, P/N83200551-001, for fouling/damage.2. If damage to any cable is found, replace the brake control cable and rework the cable cover and, if applicable, manufacture/install the offset plate assembly.3. If no damage to the cable assembly is found during the visual inspection, rework the cable cover and, if applicable, manufacture/install the offset plate assembly.Note: Transport Canada AD CF-2006-05 dated 31 March 2006 refers. |
| Compliance: | 1. Within 12 months after the effective date of this AD, unless previously accomplished.2. Before further flight.3. Within 24 months of the completion of the inspection detailed in Requirement 1 of this AD, unless previously accomplished. |
| This Airworthiness Directive becomes effective on 6 July 2006. |
| Background: | A check of production aircraft has determined that the outboard brake control cable, P/N 83200551-001, can foul on two camloc fasteners on the pilot’s bulkhead cover assembly, P/N 85314746. Although brake cable problems have not been reported on in-service aircraft, the possibility exists for brake cable wear to occur. If a brake cable were to separate while under tension, aircraft control problems could occur during take-off or landing. |
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James Coyne
Delegate of the Civil Aviation Safety Authority
24 May 2006