# SDR CALA2024122403156

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2024
- Submitted: December 24, 2024
- Operation: Air carrier
- Aircraft: [N799UA](https://openairdocs.org/aircraft/N799UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26926
- Aircraft time: 107,538 hours, 14,204 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: ADD71701100
- Condition: No Test
- 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/CALA2024122403156

## Discrepancy

M/D 3R AFT EMERGENCY POWER SUPPLY M33401 BATTERY PACK FOUND LOW CAPACITY,ORIGINATED BY EMP V903218,REF TO HAECO NON ROUTINE NO. 9450781,86-3350-1-0002. PERFORMED BY EMP V903218,REPLACED M/D 3R AFT EMERGENCY POWER SUP PLY M33401 BATTERY PACK AND C/O NEW BATTERY PACK INSTALLATION TE ST & CAPACITY CHECK,THE TEST RESULT FOUND NORMAL AS PER AMM 33-5 1-06-200-801 & AMM 33-51-06-960-802 REV 102,IDT BY EMP V903670.

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