AD/DHC-6/58 - Wing Struts Internal Beam Corrosion
1AD/DHC-6/58 - Wing Struts Internal Beam Corrosion
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text DHC-6 (Twin Otter) Series Aeroplanes
AD/DHC-6/58 Wing Struts Internal Beam Corrosion 9/85
Applicability: All models.
Requirement: Action in accordance with De Havilland Aircraft of Canada Service Bulletin No.
6/474.
Compliance: As per “Requirement” Document.
Background: The manufacturer reports two struts on the same aircraft displaying exfoliation corrosion in the strut beam flanges enclosed by the strut skins.