# SDR CALA2025120111625

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 27, 2025
- Submitted: December 1, 2025
- Operation: Air carrier
- Aircraft: [N216UA](https://openairdocs.org/aircraft/N216UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30549
- Aircraft time: 96,964 hours, 11,626 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: ADD71701100
- Part serial: 371784
- Condition: Discharged
- Location: Zone 200
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025120111625

## Discrepancy

DR 4R EMER PACK M33408 CAPACITY LOW TRANSFER REFER NON-ROUTINE WO.5702884 AND ORIGINATOR V920580 SDR REPORTABLE DR 4R EMER PACK M33408 REPLACED AND TESTED RESULT NORMAL AS PER AMM 33-51-06.

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