# SDR 17GR2015111701

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 2015
- Submitted: November 18, 2015
- Operation: General aviation
- Aircraft: [N999CB](https://openairdocs.org/aircraft/N999CB), registered now
- Make and model: Cessna 560CESSNA
- Aircraft serial: 5600692
- Aircraft time: 2,749 hours, 2,207 cycles
- Engine: Pwa PW535A
- Engine time: 2,749 hours, 2,207 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Pump
- Part number: 305933901
- Part serial: 3A862
- Condition: Defective
- Location: Oil System
- Part time: 2,749 hours, 2,207 cycles
- Stage of operation: TX
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/17GR2015111701

## Discrepancy

OIL PRESSURE WOULD DROPOFF TO YELLOW RANGE AS POWER WAS ADVANCE THROUGH 60 PERCENT N2.  PRESSURE WOULD RETURN INTO THE GREEN IF POWER WAS ADVANCED.  R & R PUMP WITH OVERHAULED PUMP.

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