AD/F28/49 - Wing Butt Straps and Boundary-Layer Fences
1AD/F28/49 - Wing Butt Straps and Boundary-Layer Fences
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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 Fokker F28 Series Aeroplanes
AD/F28/49 Wing Butt Straps and Boundary-Layer Fences 9/85
Applicability: All model F28 with S/Nos 11092, 11093, 11111 to 11203 and 11205 to 11231. Requirement: Fokker SB F28/57-70.
Note: Netherlands AD 85-44 refers.
Compliance: Prior to 31 December 1985.
Air-leakage through butt straps and boundary layer fences has an adverse effect on the aerodynamic behaviour of the wings.