# SDR 99UAL900431

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N905UA
- Make and model: Boeing 737522
- Aircraft serial: 25005
- Engine: Ge CFM56*
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inop
- Location: Cabin
- Stage of operation: IN
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99UAL900431

## Discrepancy

EMERGENCY EXIT LIGHTS AND ESCAPE PATH LIGHTING IN THE BACK HALF OF THE AIRPLANE ILLUMINATED INTERMITTENTLY.  REPLACED AFT LEFT POWER SUPPLY, OPERATIONAL CHECK GOOD.

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