Piper Service Bulletin No. 99
Applicability: Piper PA-11 serial numbers 11-1 thru 11-301, 11-1350 thru 11-1400, except serial numbers 11-233, 11-243, 11-261, 11-266, 11-281, 11-296 and 11-300
System: Fuel
Issue Date: July 29, 1947
Subject: Header Tank Installation
Summary: Installation of the header tank kit to prevent possible malfunctioning of the engine due to insufficient fuel flow in prolonged glides or dives with less than five gallons of fuel in the main tank.
Open PDF: PIP_SB99.pdf