# SDR CALA2021080401247

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2021
- Submitted: August 4, 2021
- Operation: Air carrier
- Aircraft: [N784UA](https://openairdocs.org/aircraft/N784UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26951
- Aircraft time: 101,039 hours, 13,238 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Part serial: 151929
- Condition: Discharged
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021080401247

## Discrepancy

DOOR L3 EMERGENCY LIGHTING BATTERY PACK M33405 DOESN''T OPERATE D URING FUNCTIONAL TEST REF HAECO NON-ROUTINE NO.9446468,ORIGINATE D BY EMP V905359,SPEC NO.B777-33-3-7015. PERFORMED BY EMP V905359,REPLACED DOOR L3 BATTERY PACK M33405 AN D PERFORMED LIGHT TEST,THE RESULT WAS NORMAL PER AMM 33-51-06-96 0-802 REV 92A,IDT BY TA472.

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