# SDR CALA2023040301005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2023
- Submitted: April 3, 2023
- Operation: Air carrier
- Aircraft: [N212UA](https://openairdocs.org/aircraft/N212UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30218
- Aircraft time: 74,018 hours, 15,561 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery
- Part number: ADD71701100
- Part serial: 256144
- Condition: Discharged
- Location: L1
- Stage of operation: IN
- How discovered: O
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023040301005

## Discrepancy

EMER LT BATT PACK M33424 CAPACITY CHK FAILED. WORK TRANSFER NON ROUTINE WO.1564433 AND ORIGINATOR BY V924748. REPLACED EMER LT BATT PACK M33424 AND TESTED NORMAL AS PER AMM 33-51-06.  WORK ACCOMPLISHED BY MECH V927704 AND INSPECTED BY V896992.

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