07/02/25
Message Overview:
| DDG Reference: | 24-30-00 21-54-93 |
| Pilot Action (QRH): | ELEC 04-26 |
| System Description: | 24-00-00 - Electrical Power |
| Schematic Diagram: | [ Global Express ] [ G5000 ] [ Global XRS ] 24-51-00 AC Load Distribution AC Power Center (ACPC) System [ Global Express ] [ G5000 ] [ Global XRS ] 24-52-00 AC Load Distribution Cockpit Circuit Breaker Panel (CCBP) System. |
| Wiring Diagram: | [ Global Express ] [ G5000 ] [ Global XRS ] 24-51-00 ACPC Distribution Left [ Global Express ] [ G5000 ] [ Global XRS ] 24-51-00 ACPC Distribution Right [ Global Express ] [ G5000 ] [ Global XRS ] 24-52-01 Cockpit Circuit Breaker Panel (CCBP) |
Message Description:
A fault has been detected in the Electrical System.
Possible Causes:
- See individual troubleshooting task in the Troubleshooting Recommendations section for lists of Possible Causes:.
Troubleshooting Tips:
Advisory Wire/Service Bulletin:
- AW700-24-0252 - "ELEC SYS FAULT" and or "ELEC SYS FAIL" - Nuisance CAS Message during Power Up
Full Throttle Blog/Forum Articles/Infoservice/Newsletter: None
Flight Operation Notifications Manual (FONM):
- [ Global Express ] [ G5000 ] [ Global XRS ] FON 01-08 ELEC-001 - [ELEC SYS FAULT] (Advisory/Cyan) or [ELEC SYS FAIL] (Advisory/Amber) during Aircraft Power-Up
NOTES:
- If the ELEC SYS FAULT CAS message is active on Battery power only, the PMAT will not be accessible. For troubleshooting instructions refer to Observed Fault "247OBS007 - Electrical System Troubleshooting Via EMS CDU Signboard".
- Verify C/B status on both pilot and copilot EMS CDUs. This CAS Message will post if either of the following circuit breaker or Smart Contactor status is OUT or Tripped.
| LOCATION | CB NO. | NAME |
|---|---|---|
| CCBP (A54) | CB-G12 | TRU BAY FAN |
| ACPC (A35) | SC-K15 | AC 1 FEED |
Quick Links:
| Access to Active Faults | AMM 45-45-00-970-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Access to Stored Faults | AMM 45-45-00-970-803 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Check status of AC 1 FEED on EMS CDU, the AC 1 Feed being out or tripped can drive multiple CAS to post.
BUS > AC 1 > AC 1 FEED.- If AC 1 FEED CB is IN go to step 3.
- If AC 1 FEED CB is OUT, set to IN.
AC 1 FEED CB SYSTEM PHASE CAS CB-G6 ESS TRU 1 3 AC BUS 1 FAIL (Caution) CB-G3 EVS FAIRING HEAT 3 EVS HEAT FAIL (Caution) CB-G9 SLAT/FLAP PWR 1 3 SLAT-FLAP HALFSPD (Advisory) CB-H5 EVS WINDOW HEAT 1 EVS HEAT FAIL (Caution) CB-H6 A/T CTLR 1 A/T 1 FAIL (Advisory)
A/T 2 FAIL (Advisory)CB-H7 PITOT 1 HT A 1 PITOT 1 HT FAIL (Caution) CB-H8 R ICE DETECTOR 1 ICE DETECTOR FAULT (Advisory) CB-H9 R AOA HEAT A 1 R AOA HEAT FAIL (Caution) CB-H10 L WSHLD HEAT 1 1 L WSHLD HEAT FAIL (Caution) CB-H11 L WSHLD HEAT 2 1 L WSHLD HEAT FAIL (Caution) CB-G12 TRU BAY FAN 3 ELEC SYS FAULT (Advisory) CB-B6 STAB TRIM CH1 3 STAB CH 1 FAIL (Advisory)
- Did the CAIMS Fault & CAS messages clear after setting AC 1 FEED CB to IN.
- If YES, do close out.
- If NO, go to next step.
- Select related CAIMS message below: