# SDR CALA2022022800515

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2022
- Submitted: February 28, 2022
- Operation: Air carrier
- Aircraft: [N227UA](https://openairdocs.org/aircraft/N227UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30555
- Aircraft time: 77,447 hours, 9,045 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery
- Part number: AD071701100
- Part serial: 83908
- Condition: None
- Location: L1 Door
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2022022800515

## Discrepancy

EMER PWR SUPPLY (M33424) CAPACITY CHK FAIL TRANSFER REF. NON-ROUTINE HX NRC WO.561133 AND ORIGINATED BY EMP NO. V896978 EMER POWER SUPPLY M33424 BATTERY REPLACED AND INSTALLATION TEST CARRIED OUT NORMAL IAW AMM 33-51-06. WORK ACCOMPLISHED BY MECHANIC V926996 INSPECTED BY V924743

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