COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
BAe (BAC 167) Strikemaster Series Aeroplanes
AD/STRIKEMASTER/4 Port and Starboard Mainplane Spar
Upper Attachment Lugs
13/96
Applicability: BAC 167 all Mks:
pre mod 7061, which have achieved 15 F.I. or 1000 hours time in service, or post mod 7061, which have achieved 40 F.I.
Requirement: Inspect the port and starboard mainplane spar upper attachment lugs for cracking in accordance with BAe CSI/STRIKEMASTER/50.
Note: UK CAA MPD 1995-109 refers.
Compliance: At the next 150 flying hour Service after 5 December 1996, thereafter at intervals not exceeding 150 hours time in service, and at each heavy landing or excess “g” loading after 07 November 1996.
Background: Cracking has occurred in the lugs which cannot be reliably detected in-situ using the existing ultrasonic techniques. It is therefore necessary to remove the wings and use the technique specified in the Requirement Document.