# SDR 97UAL900231

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N776UA](https://openairdocs.org/aircraft/N776UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26937
- Engine: Pwa PW4077
- System (JASC): [2432 · Battery/Charger System](https://openairdocs.org/jasc/2432)
- Part: Relay
- Part number: DP25DB
- Condition: Failed
- Location: Batt Charge Syst
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97UAL900231

## Discrepancy

AFTER DEPARTING, EXPERIENCED MAIN BATT FAILURE STATUS MESSAGE.  DIVERTED TO NEWARK.  *S/D*  GROUND SERVICE SELECT RELAY FAILED.  THIS CAUSED BOTH THE APU AND MAIN BATTERY CHARGER TO FAIL RESULTING IN BATTERY DISCHARGE.  RELAY WAS REPLACED.

---
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.