# SDR USAA2013011800006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2013
- Submitted: January 18, 2013
- Operation: Air carrier
- Aircraft: N454UW
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24996
- Aircraft time: 59,246 hours, 38,778 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 20121
- 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/USAA2013011800006

## Discrepancy

MAINTENANCE REPORTED THE 2L DOOR EXTERIOR EMERGENCY LIGHT INOPERATIVE.  MAINTENANCE INSTALLED SERVICEABLE EMERGENCY LIGHT POWER SUPPLY (M1197).  REFERENCE 33-51-51 OF 737 AMM.  OPS CHECKS GOOD.

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