Piper Service Bulletin No. 23
Applicability: Piper J4 Cubs serial numbers 4-710 thru 4-823
System: Engine
Issue Date: February 18, 1946
Subject: Removal of Bug Screen
Summary: As a precautionary measure, the Civil Aeronautics Authority requests that the bug screen installed inside the carburetor air scoop be removed.
Open PDF: PIP_SB23.pdf