# SDR CALA2023121503652

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2023
- Submitted: December 15, 2023
- Operation: Air carrier
- Aircraft: [N794UA](https://openairdocs.org/aircraft/N794UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26953
- Aircraft time: 104,721 hours, 13,866 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: ADD1701100
- Part serial: 205723
- Condition: Failed
- Location: M33408
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023121503652

## Discrepancy

CABIN R4 DOOR EMERGENCY LIGHT EXIT SIGN FAILED TO OPERATION REF HAECO NON-ROUTINE NO.:9474029,   CABIN R4 DOOR EMERGENCY LIGHT BATTERY M33408 REPLACED AND INSTALLATION TEST PERFORMED AND RESULT NORMA L AS PER AMM 33-51-06-960-802 REV99

---
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.