COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Piper PA-38 (Tomahawk) Series Aeroplanes
AD/PA-38/21 Vertical Fin Forward Spar Attachment
Plate Replacement Life Limits Applicability: All model PA-38-112 with S/Nos. 38-81A0001 to 38-82A0101. Document: Piper Service Bulletin No. 710.
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Compliance: At 3000 hours time in service install forward fin spar attachment plate and support brackets kit, Piper P/N 764 421, and thereafter at intervals not exceeding 5000 hours time in service replace forward fin spar attachment plate, Piper P/N 77553-05.
Background: Fatigue testing of the empennage structure has established replacement life limits.