# SDR CALA2026060216759

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 2026
- Submitted: June 2, 2026
- Operation: Air carrier
- Aircraft: [N644UA](https://openairdocs.org/aircraft/N644UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25094
- Aircraft time: 132,522 hours, 20,327 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: AD20131A
- Condition: Faulted
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026060216759

## Discrepancy

DURING TEST ON PANEL P40 TO RS EMERGENCY LIGHTS WAS OBSERVED R FWD DOOR SLIDE AND OVER WING LIGHTS DOES NOT TURN ON. REMOVED AND REPLACED THE BATTERY PACK M731 REF AMM 33-51-07/201. GOOD FOR SERVICE.PARTS USED:  75-3351-3-0041, QTY :1

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