# SDR UPS08551492

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2008
- Submitted: January 23, 2008
- Operation: Air carrier
- Aircraft: [N468UP](https://openairdocs.org/aircraft/N468UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25484
- Engine: Rroyce RB211535E4
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Proximity Switch
- Condition: Inoperative
- Location: Cargo Door
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS08551492

## Discrepancy

FOUND CARGO DOOR CONTROL CIRCUIT BREAKER POPPED AT P34. PANEL WILL NOT STAY IN.  REMOVED AND REPLACED ELECTRONIC PROXIMITY SWITCH UNIT PER MM 32-09-04-4.  OPS CHECK NORMAL, PSEU SMOKED/BURNED.

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