# SDR HYIA20160902102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 2016
- Submitted: September 2, 2016
- Operation: Air carrier
- Aircraft: [N663AA](https://openairdocs.org/aircraft/N663AA), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0123
- Aircraft time: 18,082 hours
- Engine: Cont TSIO520VB
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Exhaust Valve
- Part number: 658175A2BP
- Part serial: AC15CC156
- Condition: Damaged
- Location: Nr 5 Cylinder
- Part time: 1,189 hours
- Component: Engine, Cont, TSIO520VB
- Component part number: TSIO520VB
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYIA20160902102

## Discrepancy

CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.

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