COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Piper PA-31 Series Aeroplanes
AD/PA-31/108 Aft Bulkhead, Fuselage Stn. 332.0 2/85 TLX
All models PA-31P with S/Nos 31P-3 to 31P-7730012 which have achieved 1000 hours or more time in service.
Action in accordance with Piper SB No. 802.
Within 25 hours time in service after 9 January 1985 and thereafter at intervals not exceeding 200 hours time in service until either reinforcement kit, Piper P/No. 764- 983 or reinforced replacement bulkhead, Piper P/No. 45583-16 is installed.
The manufacturer reports instances of cracking in the AFT fuselage bulkhead.