# SDR UPS00531581

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2000
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N443UP](https://openairdocs.org/aircraft/N443UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 27388
- System (JASC): [3340 · Exterior Lighting](https://openairdocs.org/jasc/3340)
- Part: Switch
- Part number: 233N3214304
- Condition: Failed
- Location: Cockpit
- Stage of operation: LD
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS00531581

## Discrepancy

AFTER GEAR EXTENTION FOR LANDING, CREW NOTICED BURNING SMELL.  ACRING WAS NOTICED COMING FROM R/W TURNOFF LIGHT SWITCH.  MX FOUND RT RUNWA Y TURNOFF LIGHT SWITCH STUCK IN ON POSITION.  REMOVED AND REPLACED LIGHT PANEL ASSY.  OPS CHECKS GOOD.

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