checklist - ERAU ETA - Embry-Riddle Aeronautical University

16 PA-28R-201 SOP
Fuel Vapor (Vapor Lock)
Identification and Corrective Action
Recognition of a Vapor Problem:
Fluctuations of idle speed and fuel flow.
Poor engine response to throttle movement.
Engine will not run when throttle is in the Close position.
High RPM drop (greater than 150 rpm) when checking magnetos.
Corrective Action:
1) Advance the throttle to obtain an engine speed of 2300-2500 RPM.
2) Maintain that engine speed for 1-2 minutes, or until engine operation
becomes smooth. Ensure that the oil temperature remains within the
acceptable range.
3) Retard the throttle to the Close position to verify normal engine
operation.
4) Advance the throttle to 1000 RPM and lean for taxi.
5) Immediately prior to brake release for the takeoff roll (coordinate with
ATC, as necessary), set the mixture control to the full forward (full
rich) position, advance the throttle to full forward, and hold the
airplane in position with full throttle for 10 seconds to ensure
satisfactory engine operation.
Revised 07-01-2012 © Embry-Riddle Aeronautical University Rev 06