# SDR UPS203973

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N909UP](https://openairdocs.org/aircraft/N909UP), registered now
- Make and model: Boeing 727-27C
- Registry model: [Boeing 727-27C](https://openairdocs.org/model/boeing-727-27c) (OpenAirDocs)
- Aircraft serial: 19115
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Check Valve
- Part number: 72709
- Condition: Inop
- Location: Hyd Sys
- Stage of operation: CL
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS203973

## Discrepancy

AFTER TAKEOFF, OIL FUMES APPEARED ON FLIGHT DECK.  REMOVED AND REPLACED PNEUMATIC CHECK VALVES.  RAN PACK.  NO ODOR PRESENT.

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