# SDR CALA2021041200443

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2021
- Submitted: April 12, 2021
- Operation: Air carrier
- Aircraft: [N776UA](https://openairdocs.org/aircraft/N776UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26937
- Aircraft time: 97,223 hours, 17,259 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Failed
- Location: Emergency Light
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021041200443

## Discrepancy

B777-33-3-7019 DR 2L EMER LIGHT POWER SUPPLY M33096 BATTERY CAPA CITY CHK FAIL REF NR 9130431 DR 2L EMER LIGHT POWER SUPPLY M33096 CHARGER AND BATTERY REPLACE D AND TESTED NORMAL AS PER AMM 33-51-06 ADD EMP:V896958 IDT OK

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