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Bleed Pressure High - Single

G500 Abnormal Procedures

This is a work in progress


AFM Procedure

[AFM, §03-21-50]

Possible Cause

Bleed air pressure has exceeded 75 PSI.

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System Impacts

  • Auto mode of WAI is prohibited.

  • Maximum Altitude for Wing Anti-Ice is 32,000 feet.

  • Maximum Altitude for Single Pack Operations is 48,000 feet.

  • Wing anti-ice operation is restricted to single ECS pack operations.

Corrective Action

  1. ENG BLEED AIR (Affected Side) . . . OFF

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

  3. ECS / PRESS Synoptic Page . . . Select

  4. If the CAS message remains displayed:

    1. Throttle (Affected Engine) . . . Idle

    2. Airplane . . . Land at the nearest suitable airport

  5. If the CAS message is no longer displayed:

    1. Isolation Valve . . . Open (Depressed)

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

    3. Dual ECS Pack Operation . . . Monitor

    4. WAI . . . Deselect Auto

    5. If the operating bleed system displays abnormal indications:

    6. (1) Consider operation in a single ECS pack configuration to stabilize the BAS system.

    7. If Wing Anti-Ice is required:

    8. (1) Altitude . . . Descend below 32,000 feet

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

      (3) Isolation Valve . . . Closed (Out)

      CAUTION

      WAI MUST BE ACTIVATED AND REACH AN OPERATING TEMPERATURE GREATER THAN 100°F PRIOR TO ENTRY INTO ICING CONDITIONS.

      (4) WAI . . . ON

      (5) ECS System . . . Monitor

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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