# SDR J7SA2020111700241

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 14, 2020
- Submitted: November 17, 2020
- Operation: Air carrier
- Aircraft: [N584FX](https://openairdocs.org/aircraft/N584FX), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20705
- Aircraft time: 3,875 hours, 2,298 cycles
- Engine: Hnywl AS90721A
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Blade
- Condition: Damaged
- Location: Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/J7SA2020111700241

## Discrepancy

ON TAKEOFF OUT OF KMCC DURING GEAR RETRACTION CREW FELT A VIBRATION IN THE RUDDER PEDALS AND HEARD A LOUD BANG.  CREW FOLLOWED AFM AND CYCLED THE GEAR AGAIN WITH NO ANOMALIES.  CONTINUED TO KBZN WHERE MX FOUND NO DISCREPANCY WITH THE GEAR, BUT FOUND A DOUBLE ENGINE COMPRESSOR STALL IN THE DOWNLOAD.  SUSPECT MEDCO COATING LIBERATION WITHIN HTF7350 ENGINE.

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