03/03/25
Message Overview:
Message Name:
THERMAL CIRCUIT BREAKER TRIPPED
| Message Code: | 245OBS001 |
| Effectivity: | All |
| System: | Cockpit Circuit Breaker Panel (CCBP) |
| System Description: | 24-50-00 - AC Electrical Load Distribution 24-60-00 - SC Electrical Load Distribution |
| Schematic Diagram: | [ Global Express ] [ G5000 ] [ Global XRS ] SMM 24-51-00-101 - AC Load Distribution AC Power Center (ACPC) System [ Global Express ] [ G5000 ] [ Global XRS ] SMM 24-61-00-101 - Primary DC Power Distribution System |
| Wiring Diagram: | [ Global Express ] [ G5000 ] [ Global XRS ] WM 24-52-00 - Sheet 1 - Secondary AC Power Distribution System - ALL |
Message Description:
A thermal Circuit Breaker (CB) has tripped.
Possible Cause:
- Circuit Breaker
- Associated Line Replaceable Unit (LRU)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Full Throttle Blog/Forum Articles/Infoservice/Newsletter: None
Flight Operation Notifications Manual (FONM): None
NOTES:
- CAUTION: If a circuit breaker opens/trips, do not try to close it before you correct the problem that caused it to open/trip. Failure to do so could cause damage to the aircraft wiring and/or equipment.
Quick Links:
| Removal of the AC Power Center (ACPC) Circuit Breakers | AMM 24-51-57-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the AC Power Center (ACPC) Circuit Breakers | AMM 24-51-57-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Cockpit Circuit-Breaker Panel (CCBP) AC Circuit Breakers | AMM 24-52-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Cockpit Circuit-Breaker Panel (CCBP) AC Circuit Breakers | AMM 24-52-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the DC Power Center (DCPC) Circuit Breakers | AMM 24-61-45-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the DC Power Center (DCPC) Circuit Breakers | AMM 24-61-45-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Cockpit Circuit-Breaker Panel (CCBP) DC Circuit Breakers | AMM 24-63-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Cockpit Circuit-Breaker Panel (CCBP) DC Circuit Breakers | AMM 24-63-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Physically disconnect the affected unit(s) powered by the thermal CB. Set the tripped circuit breaker back IN. Did the CB stay in?
- If YES, replace the defective unit.
- If NO, continue with next step.
- Perform a continuity check between the affected thermal CB and the unit. Make sure you check for short circuit to ground and short circuit between the power and return.
- If wiring defects are found, repair defective wiring as required and do close out.
- If no defects are found, continue with next step.
- Replace the affected thermal CB.
- Do close out.