# SDR CALA2015021093079

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2015
- Submitted: February 10, 2015
- Operation: Air carrier
- Aircraft: N127UA
- Make and model: Boeing 747422
- Aircraft serial: 28813
- Aircraft time: 61,447 hours, 7,054 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- Location: Cabin
- 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/CALA2015021093079

## Discrepancy

EMERGENCY EXIT LIGHTS INOPERATIVE.  LT OVERWING SLIDE EEL, ALL 4 INOPERATIVE.  REPLACED POWER SUPPLY & BATTERY ASSEMBLY M 7919 IAW MM 33-51-04-201.

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