AD/JETSTREAM/48 - Wing Main Spar Access Panel - Cold Worked Holes
1AD/JETSTREAM/48 - Wing Main Spar Access Panel - Cold Worked Holes
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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 British Aerospace BAe 3100 (Jetstream) Series Aeroplanes
AD/JETSTREAM/48 Wing Main Spar Access Panel - Cold Worked Holes
Applicability: All series 3200 aircraft up to and including constructor number 922.
10/91
Requirement: Action in accordance with the Requirements of BAe Service Bulletin 57-JM 8160, dated 19 June 1991.
Note: This Service Bulletin is classified as Mandatory by the UK CAA.
Compliance: Prior to exceeding 6000 flights, or prior to 31 December 1991, whichever is the later.
The Australian CAA recommend early compliance.
Background: Multi-site cracking of the wing main spar webs has been found on the Jetstream Series 3200 wing fatigue test specimen. Cold expansion of the critical holes is to designed to improve the structures resistance to cracking.