46-37-02 PIPER: (Was Mandatory Note 13 of AD-691-2.) Applies to J3C-65, J3C-65S, Serial Numbers 14027 Through 17959, Inclusive.
Compliance required immediately.
Affected airplanes should be examined immediately to ascertain that the fuel strainer is properly installed. The strainer should be installed with the IN port adjacent to the firewall and the OUT port facing the carburetor. If the strainer is not installed as above, it should be reversed for proper fuel flow.
(Piper Service Bulletin No. 91 covers this same subject.)