Piper Vendor Service Publication No. 1
Referenced Vendor: AVCO Lycoming Service Bulletin No. 385C dated October 3, 1975
Applicability: See chart on page 3 for affected Lycoming engine models
System: Engine
Issue Date: March 8, 1976
Subject: Oil Pump Impeller and Drive Replacement
Summary: Replacing the oil pump drive shaft and drive impeller in select Lycoming engines.
Open PDF: PIP_VSP-1.pdf