Piper Service Letter No. 318
Applicability: Piper PA-18 "150" and PA-18A "150" serial numbers 18-3771 and up (not applicable for seaplanes)
System: Engine
Issue Date: April 6, 1959
Subject: Carburetor Air Filter System Maintenance
Summary: Availability of a modification kit to incorporate the latest type carburetor air filter system on the aircraft models listed above.
Open PDF: PIP_SL318.pdf