46-38-03 ERCO: (Was Mandatory Note 7 of AD-718-6.) Applies to 415-C, -CD and -D Aircraft Serial Numbers 345 to 2134, Inclusive.
To be accomplished prior to November 15, 1946.
In order to prevent possible fuel system failures, the dural elbow fitting AN 914-2D between the fuel filter and the carburetor should be replaced with elbow fitting AN 914-2.
(Erco Service Bulletin No. 12 dated July 11, 1946, covers this same subject.)