Ercoupe Service Bulletin No. 20 Revision A
Applicability: Ercoupe serial numbers 113 thru 3784 (with exceptions listed herein)
System: Wing
Issue Date: September 1, 2008
Subject: Reinforcement of Ailerons
Summary: Modification to increase the strength of the aileron balance weight bracket to beam attachment.
Open PDF: ERC_SB20_RevA.pdf