# SDR CALA2024091602435

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 2024
- Submitted: September 16, 2024
- Operation: Air carrier
- Aircraft: [N2251U](https://openairdocs.org/aircraft/N2251U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 66591
- Aircraft time: 19,907 hours, 2,392 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: D71701100
- 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/CALA2024091602435

## Discrepancy

R4 DOOR EMER LT BATTERY PACK M33401 CAPACITY CHK FAILED.  R4 DOOR EMER LT BATTERY PACK M33401 REPLACED AND INSTALLATION TEST C/O NORMAL IAW AMM33-51-06.

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