46-46-01 ERCO: (Was Mandatory Note 9 of AD-718-6.) Applies Only to 415-C, -CD and -D Aircraft Serial Numbers 2623 to 2994, Inclusive.
Compliance required prior to January 1, 1947.
Install a new fuselage gas tank overflow line (Erco P/N 415-48162) and replace the imperial brass compression sleeve No. 60F with a rubber washer No. A549, Kohler Co. of A-64-3, Hayes Industries, Inc.
(Erco Service Department Bulletin No. 15, dated August 24, 1946, covers this same subject.)