Piper Service Bulletin No. 120
Applicability: Piper J-3 and PA-11
System: Wing
Issue Date: March 28, 1952
Subject: Replacement of Front and Rear Lift Strut Forks and Barrels
Summary: Failures of lift struts caused by abuse, failure to replace lift struts after ground accidents, and the use of damaged parts from scrapped airplanes as service replacement parts.
Open PDF: PIP_SB120.pdf