# SDR O2GA2016112250704

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 2016
- Submitted: December 7, 2016
- Operation: Air carrier
- Aircraft: N507UP
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605542
- Aircraft time: 9,165 hours, 6,622 cycles
- Engine: Pwc PW545B
- Engine time: 8,937 hours, 6,445 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Warning Light
- Condition: Illuminated
- Location: Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/O2GA2016112250704

## Discrepancy

DURING CLIMB OUT THROUGH FL230 , MASTER WARNING ILLUMINATED WITH NO ASSOCIATED ANNUNCIATORS. LEFT AND RIGHT ENGINE OIL PRESSURES FLUCTUATED AND DROPPED THEN STABILIZED TWICE. ALL OTHER INDICATORS WERE GREEN.  MAINTENANCE PERFORMED THE REQUIREMENTS OF SB72-30440 . SEVERAL SUCCESSFUL OPERATIONAL CHECK FLIGHTS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.

---
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.