# SDR 2021F00272

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 2021
- Submitted: September 10, 2021
- Operation: General aviation
- Aircraft: [N645P](https://openairdocs.org/aircraft/N645P), registered now
- Make and model: Pilats PC1245
- Aircraft serial: 645
- Aircraft time: 10,367 hours, 8,980 cycles
- Engine: Pwc PT6A67B
- Engine time: 9,268 hours, 7,735 cycles
- Propeller: Hartzl HCE4A3D
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Warning Light
- Condition: Illuminated
- Location: Eis
- 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/2021F00272

## Discrepancy

IN FLIGHT, ON THE EIS, THE AMBER CAWS ILLUMINATED AT 10,000 FT @ 1650 RPM & SPAR JUMPED DOWN TO ABOUT 680 RPM. INDICATION WOULD JUMP BACK AND FORTH BETWEEN THOSE 2 RANGES. NO OTHER ABNORMAL ENGINE INDICATIONS.

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