Afterburner Failure

If loss of afterburner occurs during flight, proceed as follows:

  1. Throttle - Inboard. Immediately move throttle inboard out of the AFTERBURNER range.

Note

This closes the electrically operated afterburner shuttle valve in the engine-driven fuel pump unit, so that the fuel flow to the afterburner spray bars is shut off and the exhaust nozzle closes.

  1. Overheat-warning light — Check light OUT. If the engine burner compartment overheat-warning light was not on when failure of the afterburner occurred, attempt to relight the afterburner watching for any indications of abnormal operation.

  2. Relight afterburner — Check afterburner operation. If all cockpit indications of afterburner operation are normal after relight, continue afterburner operation.

    Note

    If afterburner light-up is not obtained within 5 seconds after the throttle is moved outboard to the AFTERBURNER range, the throttle should be moved inboard from this position and then, after 3 to 5 seconds, returned outboard to AFTERBURNER, to recycle the afterburner igniter.