# SDR 02118

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 2007
- Submitted: April 7, 2007
- Operation: Air carrier
- Aircraft: [N509SR](https://openairdocs.org/aircraft/N509SR), registered now
- Make and model: Cirrus SR22
- Registry model: [Cirrus SR22](https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Aircraft serial: 2180
- Aircraft time: 293 hours
- Engine: Cont IO550N
- Engine time: 293 hours
- Propeller: Hartzl PHCJ3YF1
- System (JASC): [7931 · Engine Oil Pressure](https://openairdocs.org/jasc/7931)
- Part: Pressure Switch
- Part number: 12635002
- Condition: Fluctuates
- Location: Oil Pressure
- Part time: 293 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/02118

## Discrepancy

OIL PRESSURE DROPPED TO 20 PSI IN CRUISE FLIGHT, DURING CRUISE OIL GAUGE FLUCTUATED +- 4 PSI, BETWEEN 33-37 OTHER INDICATIONS NORMAL, REMOVED AND CLEANED OIL PRESSURE SENDING UNIT REINSTALLED AND OPERATIONAL CHECKED GOOD.

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