Engine Failure in Flight

Gulfstream GVII

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If the engine quits on you while in flight and you don't have any indications of fire, this is the checklist for you. There is also Engine Failure Above V1 to consider. That checklist gets you away from the ground before considering many of the items shown here. (You don't have to do this checklist if you've done that checklist.) What makes this checklist different is that it also mentions drift down.

Keep in mind that a red Eng Out (U) CAS message tells you a relight is possible, while a red Eng Fail (U) message tells you a relight should not be attempted.

Everything here is from the references shown below, with a few comments in an alternate color.

Last revision:


AFM Procedure

[AFM, §04-06-70]

Corrective Action

  1. Affected Engine . . . Confirm

  2. Throttle (Affected Engine) . . . IDLE

  3. FUEL CONTROL (Affected Engine) . . . OFF

  4. If range to point of intended landing is critical:

    1. Throttle (Operating Engine) . . . MCT

    2. Single Engine Cruise Alt (TSC/FMS/Perf Init/POF Data) . . . Set in ALTITUDE window

    3. VNAV . . . Select

    4. NOTE

      Auto Speeds will update to single engine drift down airspeed.

    5. AUTO Speeds . . . Verify

    6. NOTE

      Autothrottles must remain off to maintain drift down descent profile.

    7. If the aircraft levels off above FMS predicted Single Engine cruise altitude:

    8. (1) ALT HOLD . . . Select

      (2) MAN SPEED . . . Select

      (3) Single Engine Cruise Speed (TSC/FMS/Perf Init/POF Data) . . . Set in SPEED window

      (4) Autothrottle . . . As desired.

  5. ENG BLEED AIR (Affected Enginbe) . . . OFF

  6. Isolation Valve . . . Open (Depressed)

  7. TCAS . . . TA only

  8. NOTE

    The APU may be used as an alternate source of electrical power. Refer to 03-03-10, APU Inflight Operation - Alternate Electrical Power Source.

  9. Fuel Balance . . . Monitor and Maintain

    1. Refer to 02-08-60, Fuel Balancing in Flight.

  10. WAI . . . Deselect Auto

  11. Be careful! If you are already in icing conditions with an engine shut down and then, even momentarily, turn the wing anti-ice off, you have just 60 seconds to turn it back off before you are locked into a Stall Ref Speed Increase situation. This happens because the AOA protection system assumes wings are contaminated and reduces AOA to prevent stall, and that will require you to increase VREF by 20% and landing distance by 50%. I heard from a Gulfstream flight controls engineer that if you don't get the wing anti-ice back on in 60 seconds, you will not have the chance again. If you are in icing conditions and the wing anti-ice is already hard selected ON, leave it there.

  12. If Wing Anti-Ice is required:

    1. Altitude . . . Descend below 32,000 feet

    2. ECS Pack (Affected Engine) . . . OFF

    3. Isolation Valve . . . Closed (Out)

    4. CAUTION


    5. WAI . . . ON

  13. If an airstart is to be attempted:

    1. NOTE

      Do not attempt an airstart if an Eng Fail (warning) CAS message was displayed prior to the Fuel Control being shut off.

    2. Refer to 04-08-20, Airstart.

  14. Airplane . . . Land as soon as possible

  15. Refer to 04-08-30, One Engine Inoperative Landing Procedure.

See Also:

Gulfstream GVII-G500 Airplane Flight Manual, Revision 4, August 29, 2019

Gulfstream GVII-G500 Production Aircraft Systems, Revision 3, July 15, 2019