Afterburner Failure

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

  1. Throttle—INBOARD. Move throttle inboard and out of the AFTERBURNER range.

    Note

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

  2. Overheat Warning Light—CHECK. If the engine burner compartment overheat-warning light is extinguished, attempt to relight the afterburner watching for any indications of abnormal operation.

  3. Relight afterburner—CHECK AFTERBURNER OPERATION. If all cockpit indications of afterburner operation are normal after relight, continue afterburner operation.

Note

If afterburner fails to light 5 seconds after the throttle is moved outboard to the AFTERBURNER range, move the throttle inboard and wait 3–5 seconds before attempting to light the afterburner again.