# SDR 2018F00153

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2018
- Submitted: November 27, 2018
- Operation: General aviation
- Aircraft: N805NV
- Make and model: Robsin R44
- Aircraft serial: 2559
- Engine: Lyc O540F1B5
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Intake Valve
- Part number: 73938
- Condition: Burned
- Location: Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2018F00153

## Discrepancy

DURING FLIGHT, PILOT EXPERIENCED "TORQUE KICK". PILOT MADE PRECAUTIONARY LANDING.  INSPECTION REVEALED A BURNED INTAKE VALVE. ABOUT 3/8" OF THE MATING FACE WAS BURNED.  AIRCRAFT IS NEW, ENGINE ONLY HAD ABOUT 200 HOURS ON IT.

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