# SDR HYIA20190107001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2019
- Submitted: January 7, 2019
- Operation: Air carrier
- Aircraft: [N763EA](https://openairdocs.org/aircraft/N763EA), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0497
- Aircraft time: 35,413 hours
- Engine: Cont TSIO520VB
- Engine time: 9,295 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Intake Valve
- Condition: Damaged
- Location: Rt Engine
- Component: Engine, Cont, TSIO520VB
- Component part number: TSIO520VB
- Stage of operation: DE
- How discovered: O
- Nature of condition: Z
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYIA20190107001

## Discrepancy

PILOT REPORTED RIGHT ENGINE SHUDDERED, THEN STARTED RUNNING ROUGH IN FLIGHT. PRELIMINARY INSPECTION FOUND DAMAGE TO THE NR 1 INTAKE VALVE, DAMAGE TO THE NR 1 AND NR 5 PISTON HEADS AND THE NR 5 CYLINDER INTAKE LIFTER SLEEVE EXTRUDING FROM LIFTER TUBE IN CRANK CASE, CONTACTING THE CAM SHAFT. THE ENGINE IS BEING REMOVED FOR FURTHER INVESTIGATION.

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