# SDR HYIA20200521002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2020
- Submitted: May 21, 2020
- Operation: Air carrier
- Aircraft: [N120PC](https://openairdocs.org/aircraft/N120PC), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: C4020079
- Aircraft time: 33,725 hours, 34,943 cycles
- Engine: Cont TSIO520VB
- Engine time: 2,612 hours, 5,143 cycles
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 658175A2BP
- Part serial: AC15AB648
- Condition: Low Pressure
- Location: Engine
- Part time: 2,612 hours, 5,143 cycles
- Component: Engine, Cont, TSIO520VB
- Component part number: TSIO520VB
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYIA20200521002

## Discrepancy

PILOT REPORTED ROUGH RUNNING ENGINE.  MAINTENANCE INSPECTED AND FOUND RIGHT #5 CYLINDER NO COMPRESSION. REMOVED AND REPLACED ENGINE WITH NO FURTHER DEFECT NOTED, AS WAS SCHEDULED FOR REMOVAL WITHIN 87 HOURS.

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