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-31/94
Amdt 2
Fuselage Bulkhead at STA.317.5 10/96
Applicability: Models Serial Numbers
PA31, PA31-300 and PA31-325 31-2 through 31-7912039 PA31-350 31-5001 through 31-7952071
Requirement: 1. Inspect the upper section of the Fuselage Station 317.75 bulkhead for cracks in accordance with the Instructions section of Piper Service Bulletin 636A.
- If any crack is found, incorporate Piper Kit 764-028 in accordance with the instructions included with that kit, revised 18 June 1990.
b. If no crack is found, incorporate Piper Kit 763-917 in accordance with the instructions included with that kit, revised 18 June 1990.
Note: FAA AD 96-12-12 Amdt 39-9654 refers.
Compliance: Within 100 hours time in service after 12 September 1996, unless Piper Kit 764-028 or Piper Kit 763-917 is already incorporated.
Background: Instances have occurred of cracks developing in the bulkhead flange area of STA.317.75 at the attachment point for the vertical fin forward spar.
Amendment 1 introduced amendment A of the Requirement Document.
Amendment 2 is issued to reflect a new FAA AD which was issued in response to further reports of cracks and the Federal Aviation Administration's policy on ageing commuter-class aircraft by eliminating or, in certain instances, reducing the number of repetitive short-interval inspections when improved parts or modifications are available.
The original issue of this Airworthiness Directive became effective on 30 September 1980.
Amendment 1 of this Airworthiness Directive became effective on 30 November 1980.