# SDR CALA2020072001064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 17, 2020
- Submitted: July 20, 2020
- Operation: Air carrier
- Aircraft: [N222UA](https://openairdocs.org/aircraft/N222UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30553
- Aircraft time: 79,505 hours, 9,329 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD717011
- Condition: Discharged
- Location: Emergency Lights
- 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/CALA2020072001064

## Discrepancy

R4 EMERGENCY BATTERY FAILED OPS CHECK ON T/C NO. 97-1011-1-6904 REMOVED AND REPLACED R4 BATTERY PACK P/N AD-D717-01-1  S/N 180833 REF 777 MM 33-51-06-960-802.  OPS CHECK GOOD.

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