# SDR CALA2021092701680

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2021
- Submitted: September 27, 2021
- Operation: Air carrier
- Aircraft: [N780UA](https://openairdocs.org/aircraft/N780UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26944
- Aircraft time: 94,114 hours, 16,540 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Part serial: 80633
- 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/CALA2021092701680

## Discrepancy

DOOR NO.1L M33424 EMERGENCY POWER SUPPLY BATTERY PACK FOUND LOW CAPACITY REF TO HAECO NON-ROUTINE NO. 9456183, ORIGINATED BY EMP V905495, SPEC NO. B777-33-3-7015. PERFORMED BY EMP V905495, REPLACED DOOR NO.1L M33424 EMERGENCY P OWER SUPPLY BATTERY PACK AND PERFORMED TEST OF NEW BATTERY PACK AS PER AMM 33-51-06-960-802 REV 92A, TEST RESULT NORMAL. IDT BY EMP V905307.

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