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Bleed Pressure Low - Dual

G500 Abnormal Procedures

This is a work in progress


AFM Procedure

[AFM, §03-21-80]

Possible Cause

Bleed air pressure less than 5 PSI.

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System Impacts

  • Cabin Altitude: Unavailable with both bleeds failed.

  • Wing Anti-Ice: Unavailable.

Corrective Action

  1. If a bleed air leak is suspected:
    1. ENG BLEED AIR (Left and Right) . . . OFF

    2. Altitude . . . Coordinate immediate descent

    3. CAUTION

      CABIN ALTITUDE WILL CLIMB WITH BOTH BLEEDS SECURED. DO NOT DELAY DESCENT.

    4. Pressurization . . . Verify cabin climb rate

    5. Airplane . . . Depart icing conditions

    6. WAI . . . OFF

    7. RAM AIR (OHPTS / ECS) . . . Select

    8. Once altitude is less than 15,000 feet:

    9. (1) CPC FAULT / MANUAL Switch . . . MANUAL

      NOTE

      Continued flight with the TROV full open prevents cabin overheat conditions.

      (2) CABIN ALT Knob . . . Adjust (As Required)

    10. Airplane . . . Land as soon as practicable

  2. If a bleed air leak is not suspected:

    1. Throttle . . . Advance

    2. ECS / PRESS Synoptic Page . . . Select

References

Gulfstream GVII-G500 Airplane Flight Manual, Revision 3, July 16, 2019

Gulstream GVII-G500 Production Aircraft Systems, Revision 1, Oct 1, 2018

Revision: 20190731
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