48-14-01 PIPER: Applies to PA-12 Aircraft Serial Numbers 12-1 Through 12-1869; 12- 1872; 12-1873; 12-1878; 12-1879; 12-1881; 12-1883; 12-1885 Through 12-1921; 12-2001 Through 12-2008; 12-2010 Through 12-2012; 12-2016; 12-2017; 12-2036 Through 12-2038; 12- 2042; 12-2043; 12-2047; 12-2050; 12-2051.
Compliance required prior to August 1, 1948.
To prevent possible fuel leakage at the connection of the elbow fitting with the rear fuel valve, replace elbow with Piper P/N 11610.
(Piper Service Bulletin No. 104 dated January 30, 1948, covers this same subject.)