Start Valve Fail Open in Flight

Gulfstream GVII

Eddie sez:

You need to close the bleed air to the affected engine and pull out the checklist.

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

L Start Vlv Fail Open

R Start Vlv Fail Open

L-R Start Vlv Fail Open

Last revision:

20191019

AFM Procedure

[AFM, §03-09-20]

  1. Isolation Valve . . . Closed (Out)

  2. Affected Engine . . . Confirm

  3. ENG BLEED AIR (Affected Engine) . . . OFF

  4. Bleed Air Pressure (Affected Engine) . . . Verify 0 PSI

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

  6. Altitude . . . 48,000 feet (or less)

  7. If bleed air pressure on the affected engine remains indicated:

    1. POWER LEVER (Affected Engine) . . . IDLE

    2. Secondary Engine 1/6 Synoptic . . . Display

    3. Affected Engine EVM . . . Monitor

  8. Airplane Land as soon as practicable


See Also:

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

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