# SDR CALA2021102601982

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2021
- Submitted: October 27, 2021
- Operation: Air carrier
- Aircraft: [N216UA](https://openairdocs.org/aircraft/N216UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30549
- Aircraft time: 83,810 hours, 10,057 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery
- Part number: D71701100
- Part serial: 63545
- Condition: Inoperative
- Location: Llar
- 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/CALA2021102601982

## Discrepancy

LLAR EMERGENCY LIGHT POWER SUPPLY BATTERY FAILED - ORIGINATED BY EMP V905307 ON HAECO NR 9460012, SPEC NO.B777-33-3-7024. PERFORMED BY EMP V905450,LLAR EMERGENCY LIGHT POWER SUPPLY BATTE RY PACK REPLACED, INSTALLATION TEST PERFORMED FOUND NORMAL, REF TO AMM 33-51-06-960-802 REV 93.

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