# SDR UPS97224934

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N946UP](https://openairdocs.org/aircraft/N946UP), registered now
- Make and model: Boeing 727-25C
- Registry model: [Boeing 727-25C](https://openairdocs.org/model/boeing-727-25c) (OpenAirDocs)
- Aircraft serial: 19721
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Power Supply
- Part number: 10607724
- Condition: Failed
- Location: Cockpit
- Stage of operation: DE
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS97224934

## Discrepancy

INSPECTION TYPE-N/A, AN ARCID SMELL WAS READILY IDENTIFIED IN COCKPIT DURING DESCENT, COULD  NOT BE IDENTIFIED.  REPLACED LT AND RT WATER SEPARATOR BAGS, NO HELP.  DURING ENGINE RUN SMELL CONTINUED.  FOUND SMOKEY SMELL EMANATING FROM AURAL WARNING BOX POWER SUPPLY.  REMOVED AND REPLACED SAME, OP CK OK.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.