Piper Service Letter No. 196
Applicability: Piper PA-18 "135" and PA-18A "135" airplanes with serial numbers 18-1810 thru 18-1908, 18-1910 thru 18-1914, 18-1916 thru 18-1918, 18-1920, 18-1921, 18-1923, 18-1924, 18-1926 thru 18-1928, 18-1931, 18-1932, 18-1937 and 18-1940 thru 18-1942
System: Engine
Issue Date: October 6, 1952
Subject: Chafing of Oil Pressure Line
Summary: Discovery of sufficient chafing between the oil pressure line and the oil radiator line to cause wear, with the possibility that in time the oil pressure line might develop a leak.
Open PDF: PIP_SL196.pdf