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-8/111 | Fuselage Bottom Skin and VHFAntenna Support Structure | 3/2006 |
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| Applicability: | Models DHC-8-401 and DHC-8-402 aircraft, serial numbers 4003 through 4076, and 4078 through 4081. |
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| Requirement: | Action in accordance with Transport Canada AD CF-2003-28. |
| 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 received a report of an aircraft with an 8-inch crack on the fuselage skin in the vicinity of the forward No. 2 VHF antenna. Investigation revealed that four of eight cleats, part number 85307891, attaching the internal antenna support plate, had cracked as well. Since the original report, other aircraft were found to have cracked cleats. If undetected, cracking in the fuselage skin could result in rapid decompression of the aircraft. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
3 February 2006