# SDR CALA2022040400875

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2022
- Submitted: April 4, 2022
- Operation: Air carrier
- Aircraft: [N220UA](https://openairdocs.org/aircraft/N220UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30223
- Aircraft time: 80,713 hours, 9,507 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery
- Part number: ADD71701100
- Part serial: 231392
- Condition: None
- Location: L3 Door O/H
- 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/CALA2022040400875

## Discrepancy

L3 DOOR O/H EXIT SIGN FOUND DIM. TRANSFER REF NR HX WO.597218 AND ORIGINATED BY EMP NO. V896965. L3 DOOR O/H EXIT SIGN EMERGENCY POWER BATTERY REPLACED AND LIGHTING CHECK NORMAL AS PER AMM 33-51-00 (M33405). WORK ACCOMPLISHED BY MECHANIC V896965 INSPECTED BY V896992.

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