# SDR CALA2026011612994

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2026
- Submitted: January 16, 2026
- Operation: Air carrier
- Aircraft: [N784UA](https://openairdocs.org/aircraft/N784UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26951
- Aircraft time: 114,910 hours, 14,847 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: ADD71701100
- Condition: Discharged
- Location: Zone 200
- 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/CALA2026011612994

## Discrepancy

CABIN EMERGENCY LIGHT FOUND INOP ON DOOR 3 ATTENDANT CREW REST CLOSET REF HAECO NON-ROUTINE 9493192,  SUPPORT TASK. BATTERY LOW VOLTAGE, REPLACED THE POWER SUPPLY (M33099) BATTERY AND BATTERY CHARGER, THEN CARRIED OUT INSTALLATION TEST AND OPERATIONAL TEST, THE RESULT NORMAL, IAW AMM 33-51-06-960-802, 33-51-06-960-803, 33-51-00-710-801, REV.106.

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