Event Overview
According to the pilot's statement, the engine ceased operating approximately one to two minutes after the fuel selector was moved from the right tank to the left tank. The pilot then turned on the auxiliary fuel pump and switched the selector back to the right tank, then to the auxiliary tank, and finally back to the left tank, but the engine did not restart.
Inspection Findings
An inspection after the event revealed that the fuel selector was positioned on the left tank, which contained 10 gallons of fuel. No fuel was found in the right tank, while the auxiliary tank held 20 gallons.
Restart Procedure
The air restart procedure as described in the source directs that the pilot should select the fullest fuel tank, retard the throttle, set the mixture to rich, and turn on the auxiliary pump until power is regained. In this instance, the pilot had not selected the fullest tank for a sufficient duration to purge air from the injector servo during the restart attempt.