# SDR ASOA02408

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2002
- Submitted: September 18, 2002
- Operation: Air carrier
- Aircraft: [N531AS](https://openairdocs.org/aircraft/N531AS), registered now
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 454
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 3012000
- Condition: Discharged
- Location: Cabin
- Part time: 14,112 hours
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASOA02408

## Discrepancy

FLT 4039 - DURING INCOMING RUNS IN MCN, WITH THE EMERGENCY LIGHTS ARMED, SEVERAL EMERGENCY LIGHTS WERE ILLUMINATED FROM ROWS 1-7 ON THE FLOOR, CEILING, AND SIDEWALL.  MAINTENANCE REMOVED AND REPLACED THE POWER SUPPLY IN THE 43WL POSITION.  OPERATIONAL CHECKS GOOD.  AIRCRAFT OK FOR SERVICE.  (M)

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