# SDR CALA2023112403468

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 2023
- Submitted: November 24, 2023
- Operation: Air carrier
- Aircraft: [N221UA](https://openairdocs.org/aircraft/N221UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30552
- Aircraft time: 83,460 hours, 10,414 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Discharged
- Location: Door L2 - M33096
- Stage of operation: IN
- How discovered: V
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023112403468

## Discrepancy

FOUND CABIN L2 DOOR AREA M33096 EMERGENCY POWER SUPPLY BATTERY LOW CAPACITY,ORIGINATED BY EMP V903172, REF TO HAECO NON ROUTINE N O.9472883 SPEC NO.B777-33-3-7019. PERFORMED BY EMP V903172,REPLACED THE CABIN L2 DOOR AREA M33096 EMERGENCY POWER SUPPLY BATTERY PACK AND OP TEST CARRIED OUT,FOUN D NORMAL AS PER AMM 33-51-06-960-802 REV 99,IDT BY TA705.

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