# SDR HYIA20230501001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2023
- Submitted: May 1, 2023
- Operation: Air carrier
- Aircraft: [N385CA](https://openairdocs.org/aircraft/N385CA), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: C4020111
- Aircraft time: 21,448 hours, 14,345 cycles
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Intake Valve
- Part number: UNKNOWN
- Condition: Damaged
- Location: Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYIA20230501001

## Discrepancy

PILOT REPORTED RIGHT ENGINE NTO PRIMARY/SECONDARY LIGHTS ILLUMINATED DURING CRUISE AND NOTED A CONTINUOUS POP/SURGE SOUND FROM THE ENGINE. THE ENGINE DIED WHEN POWER WAS BROUGHT NEAR IDLE. INITIAL INSPECTION FOUND THE # CYLINDER INTAKE VALVE HEAD MISSING. ADDITIONAL INSPECTION TO BE ACCOMPLISHED.

LYCOMING, TEO540C1A, SER NR: RL24084A, TT: 719, TC:775

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.