# SDR CALA2025051204598

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2025
- Submitted: May 12, 2025
- Operation: Air carrier
- Aircraft: [N26910](https://openairdocs.org/aircraft/N26910), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 34826
- Aircraft time: 46,616 hours, 5,654 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 100260201
- Part serial: ST24038602
- Condition: Inoperative
- Location: Zone 200
- Part time: 3,438 hours, 424 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025051204598

## Discrepancy

EMERGENCY PATH LIGHT FROM ROW 43FED TO 53FED BOTH SIDE ARE NOT WORKING EMERG  PATH LT AT 46D DISCONN , SECURED CONN LTS FOR 47-52D REPLACED BATTERYS AT WCU 27-29. ACCOMP SHORT TEST PASSED ALL LTS CHECK OK. REF FIM 33-50-F1-E9A-421A-A & MM33-51-00-00C-320A-A.

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