# SDR CALA2016033195241

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2016
- Submitted: March 31, 2016
- Operation: Air carrier
- Aircraft: N199UA
- Make and model: Boeing 747422
- Aircraft serial: 28717
- Aircraft time: 74,183 hours, 8,449 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Condition: Inoperative
- Location: Exit Sign
- 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/CALA2016033195241

## Discrepancy

PER A CHECK, DOOR 4R, AFT EXIT SIGN, INOPERATIVE.  REPLACED EMER EXIT LIGHT ASSEMBLY.  OPERATIONS CHECKED OK.

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