# SDR CALA2015042093619

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2015
- Submitted: April 20, 2015
- Operation: Air carrier
- Aircraft: N199UA
- Make and model: Boeing 747422
- Aircraft serial: 28717
- Aircraft time: 70,838 hours, 8,112 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- 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/CALA2015042093619

## Discrepancy

LEFT FUSELAGE FWD, TWO EACH EMER LIGHT FOUND INOPERATIVE.  WIRING CHECK CARRIED OUT & FOUND NORMAL.  BATTERY CHARGER FUSE & LIGHT LAMPS REPLACED.  EMER LIGHT TEST CARRIED OUT & FOUND NORMAL IAW AMM 33-51-04 REV 17 3, AMM 33-51-03 REV 173, AMM 33051-00 REV 173 & WDM 33051-42 REV 142.

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