# SDR UALA2011022100880

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2011
- Submitted: February 24, 2011
- Operation: Air carrier
- Aircraft: N116UA
- Make and model: Boeing 747422
- Aircraft serial: 26908
- Aircraft time: 49,817 hours, 5,884 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 90085
- Condition: Failed
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011022100880

## Discrepancy

BATTERY SUPPLY INSIDE R1 DOOR OVERHEAD PANEL FAILED TEST.   REPLACED BATTERY SUPPLY IAW MM.  OP CK GOOD.

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