# SDR 9JLA2023041437810

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2023
- Submitted: April 14, 2023
- Operation: Air carrier
- Aircraft: [N1221Q](https://openairdocs.org/aircraft/N1221Q), registered now
- Make and model: Gulstm 200
- Aircraft serial: 045
- Aircraft time: 3,464 hours, 2,039 cycles
- System (JASC): [2432 · Battery/Charger System](https://openairdocs.org/jasc/2432)
- Part: Battery Pack
- Part number: 277818
- Part serial: J03484
- Condition: Overheated
- Stage of operation: CR
- How discovered: O
- Nature of condition: J, M
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9JLA2023041437810

## Discrepancy

THE FLIGHT CREW REPORTED THAT THE EMERGENCY BATTERY OVERHEAT EICAS MESSAGE DISPLAYED DURING THE FLIGHT. TEMP EXCEEDED 140 DEGREES. THE FLIGHT CREW RAN THE QRH AND SWITCHED OFF EMERGENCY BATTERY SWITCH. THE FLIGHT CONTINUED TO THE DESTINATION. THE MAINTENANCE TEAM REMOVED THE FAILED E-BATTERY AND INSTALLED AN OVERHAULED UNIT. OPS CHECKS WERE SATISFACTORY, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.