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-31/55 Lower Inboard R.H. Wing Surface - Inspection 4/77
All models PA-31 and PA-31-325 with S/Nos. 31-7612064, to 31-7612110, 31- 7712001 to 31-7712012, 31-7712014, 31-7712015, 31-7712017, 31-7712018, 31-
7712020, to 31-7712023, 31-7712025 to 31-7712027. All model PA-31- 350 with
S/Nos. 31-7652104 to -7652120, -7652122, -7652124, -7652125, -7652127,
-7652129, -7652130, -7652132 to 7652135, -7652137, -7652139, -7652141,
-7652142, -7652145, -7652147, -7652148, -7652150, -7652151, -7652153,
-7652154, -7652156, -7652157, -7652159, -7652162, to -7658777, -7752001,
-7752002, -7752004 to -7752006, -7752008, -7752009, -7752011, -7752012,
-7752015 -7752019, to -7752022, -7752027, -7752036, -7752038, -7752040,
-7752042, -7752047 to -7752049.
1. Inspect the RH wing lower surface from the front spar fuselage attachment diagonally aft to the wheel well area for indication of lower wing skin deformation and/or loose or missing rivets.
2. For PA-31-350 “Navajo Chieftain” fabricate and install in full view of the pilot, a placard reading “MAXIMUM LANDING WEIGHT 6650 POUNDS” “(3016 KILOGRAMS)”.
1. Initially before further flight and thereafter at intervals not exceeding 20 landings until modified in accordance with Piper SB No. 554.
2. Before further flight, retain in position until modified.