# SDR CALA2023040300993

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2023
- Submitted: April 3, 2023
- Operation: Air carrier
- Aircraft: [N784UA](https://openairdocs.org/aircraft/N784UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26951
- Aircraft time: 102,516 hours, 13,452 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery
- Part number: ADD71701100
- Part serial: 155414
- Condition: Failed
- Location: R3 M33401
- 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/CALA2023040300993

## Discrepancy

B777-33-3-7019  DR R3 EMER LIGHT BATTERY M33401 CAPACITY CHECK FAIL. TRANSFER REF. NON-ROUTINE HX NRC WO.1582469 AND ORIGINATED BY EMP V898181. DR R3 EMER LIGHT BATTERY M33401 REPLACED AND TESTED NORMAL AS PER AMM33-51-06. WORK ACCOMPLISHED BY MECHANIC V898181 INSPECTED BY V896958. IDT INSPECTED OKAY BY HX209496. ADD EMP:V898558

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