Piper Service Letter No. 138
Applicability: Piper PA-20 up to serial number 20-115
System: Control
Issue Date: March 9, 1950
Subject: Rudder Pedal Tube Attachment
Summary: It is recommended that a #6 x 3/8" Parker Screw be installed in the rudder pedal tube clamp of the right hand rudder pedals to eliminate the possible rotation of the rudder pedal cross tube on the torque tube arm.
Open PDF: PIP_SL138.pdf