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-8/110 | Outer Wing Fuel Access Panel | 3/2006 |
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| Applicability: | Model DHC-8-400, DHC-8-401, and DHC-8-402 aircraft, serial numbers 4001, and 4003 through 4106. |
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| Requirement: | Action in accordance with Transport Canada AD CF-2005-37.Note: Bombardier Service Bulletin 84-57-13 original issue, or later Transport Canada approved revision, refers. |
| Compliance: | As specified in the Requirement document, with a revised effective date of16 March 2006. |
| This Airworthiness Directive becomes effective on 16 March 2006. | |
| Background: | The manufacturer has received numerous reports of cracks on part number85714230-001 outer wing fuel access panels. These were found during routine maintenance checks. Investigation revealed that certain fuel access panels were manufactured with seal grooves having sharp corner radii. This condition, if not corrected, could result in arcing and ignition of fuel vapour in the outer wing fuel tank during a lightning strike. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
3 February 2006