# SDR VQMA20210819804

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 2021
- Submitted: August 19, 2021
- Operation: Air carrier
- Aircraft: [N939TX](https://openairdocs.org/aircraft/N939TX), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500193
- Aircraft time: 16,728 hours, 10,094 cycles
- Engine: Rroyce AE3007C1
- Engine time: 15,940 hours, 9,623 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Power Loss
- Stage of operation: DE
- How discovered: O
- Nature of condition: R
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VQMA20210819804

## Discrepancy

DESCENDING FROM FL270 TO FL160 AND LEVELING OFF, FLIGHT CREW EXPERIENCED A SIGNIFICANT LOSS OF POWER TO BOTH ENGINES.  AIRCRAFT WAS CONFIGURED AT TBL FOR LANDING.  MAX ITT INDICATED 753 DEGREES.  N1 INDICATED 82.5 PERCENT.  CREW WAS ONLY ABLE TO MAINTAIN A MAXIMUM SPEED OF 140KTS. IN LEVEL FLIGHT, REGARDLESS OF THROTTLE SETTINGS.  WITH PITCH DOWN, CREW WAS ABLE TO ACHIEVE 156KTS.

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