Piper Service Bulletin No. 528D
Applicability:
- All aircraft incorporating steel wing lift struts
- Piper J-2 Series Cub serial numbers 500 thru 1975
- All Piper J-3, NE-1, L-4 Cub
- Piper J-4 Series Coupe serial numbers 4-401 thru 4-1649
- Piper J-5, J-5C, L-14, AE-1, HE-1 Series Cub Cruiser serial numbers 5-1 thru 5-1389
- Piper PA-11 Series Cub Special serial numbers 11-1 thru 11-1678
- Piper PA-12 Series Super Cruiser serial numbers 12-1 thru 12-4036
- Piper PA-14 Series Family Cruiser serial numbers 14-1 thru 14-523
- Piper PA-15 Vagabond serial numbers 15-1 thru 15-388
- Piper PA-16 Clipper serial numbers 16-1 thru 16-736
- Piper PA-17 Vagabond serial numbers 17-1 thru 17-215
- Piper PA-20 Series Pacer serial numbers 20-1 thru 20-1121
- Piper PA-22 Series Tri-Pacer/Colt serial numbers 22-1 thru 22-9848
- Piper PA-25 Series Pawnee serial numbers 25-1 thru 25-8156024
System: Airframe
Issue Date: October 11, 1989
Subject: Wing Lift Strut Inspection
Summary: Revises compliance time, purpose, and instructions for inspection and/or replacement of wing lift strut assembly. Also announces the availability of new sealed lift struts.
Open PDF: PIP_SB528D.pdf