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Electric Load Shedding

G500 Abnormal Procedures

This is a work in progress


AFM Procedure

[AFM, §03-04-70]

Corrective Action

    CAUTION

    ABOVE 35,000 FEET, THE APU DOOR SCHEDULE ONLY PROVIDES SUFFICIENT INTAKE TO SUSTAIN ELECTRICAL LOADS AT 78%. ELECTRICAL LOADS GREATER THAN 78% ABOVE 35,000 FEET WILL RESULT IN EVENTUAL APU FAILURE.

    PULL THE FOLLOWING CIRCUIT BREAKERS SEQUENTIALLY UNTIL ELECTRICAL LOAD ON THE APU GENERATOR FALLS BELOW 78%, THEN CEASE THIS CHECKLIST. RESET REQUIRED CIRCUIT BREAKERS WHEN DESCENDING BELOW 35,000 FEET.

  1. Cabin Window Heat . . . PULL each SSPC (sequentially)
  2. WDO HT L 1 & 3 SSPC ID: 3008

    WDO HT L 2 & 4 SSPC ID: 3009

    WDO HT L AFT SSPC ID: 3010

    WDO HT R 1 & 3 SSPC ID: 3012

    WDO HT R 2 & 4 SSPC ID: 3013

    WDO HT R AFT SSPC ID: 3014

  3. Pilot Not Flying Front Windshield Heat . . . PULL one of the following SSPCs
  4. WSHLD HT L F (B) SSPC ID: 3018

    WSHLD HT L F (C) SSPC ID: 3019

    WSHLD HT R F (A) SSPC ID: 3021

    WSHLD HT R F (B) SSPC ID: 3022

  5. Pilot Flying Front Windshield Heat . . . PULL one SSPC of the remaining operating windshield heat
  6. WSHLD HT L F (B) SSPC ID: 3018

    WSHLD HT L F (C) SSPC ID: 3019

    WSHLD HT R F (A) SSPC ID: 3021

    WSHLD HT R F (B) SSPC ID: 3022

  7. Return to:
  8. 04-04-10, Dual Generator Failure (Above 37,000 Feet) or

    04-04-20, Dual Generator Failure (Below 37,000 Feet) or

    3B-01-380, APU Exceedance (U)

References

Gulfstream GVII-G500 Airplane Flight Manual, Revision 1, August 31, 2018

Revision: 2019-04-18
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