# SDR CALA2017032400705

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2017
- Submitted: March 24, 2017
- Operation: Air carrier
- Aircraft: N178UA
- Make and model: Boeing 747422
- Aircraft serial: 24385
- Aircraft time: 106,854 hours, 12,548 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Lamp
- Condition: Inoperative
- 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/CALA2017032400705

## Discrepancy

EMERGENCY LIGHTS IN MAIN CABIN 43L AND 47L ARE INOPERATIVE DURING CHECK.   REPLACED THE LAMPS, OPS CHECKED GOOD. IAW AMM 33-51- 07.

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