# SDR CALA2024122403157

- 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/CALA2024122403157

## Discrepancy

M/D R4 DOOR AFT EMERGENCY POWER SUPPLY M33409 BATTERY PACK FOUND LOW CAPACITY,ORIGINATED BY EMP V903218,REF TO HAECO NON ROUTINE NO.9450808,86-3350-1-0002. PERFORMED BY EMP V903218,REPLACED M/D R4 DOOR AFT EMERGENCY POWE V903670. R SUPPLY M33409 BATTERY PACK AND C/O NEW BATTERY PACK INSTALLATI ON TEST & CAPACITY CHECK,THE TEST RESULT FOUND NORMAL AS PER AMM 33-51-06-960-802 & AMM 33-51-06-200-801 REV 102,IDT BY EMP

---
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.