Piper Service Bulletin No. 123
Applicability: All Piper PA-20 and PA-22
System: Wings
Issue Date: May 7, 1954
Subject: Front Spar Interference
Summary: Inspection to determine if there is interference between the inboard end of the front spar web and the aileron pulley attachment bolt in the area of the front wing hinge fitting.
Open PDF: PIP_SB123.pdf