What was found
NUMBER ONE CYLINDER EXHAUST VALVE STEM BROKE RELEASING VALVE INTO CYLINDER.
- Difficulty date
- July 13, 2022
- Submitted
- July 17, 2022
- Operation
- General aviation
- Aircraft
- N118YL
- Make and model
- Robsin R44RAVENII
- Aircraft serial
- 10399
- Aircraft time
- 1,979 hours
- Engine
- Lyc IO540AE1A5
- Engine time
- 4,179 hours
- System (JASC)
- 7100 · Powerplant System
- Part
- Exhaust Valve
- Part number
- 17B23935
- Part serial
- NA
- Condition
- Broken
- Location
- Engine
- Part time
- 1,979 hours
- Component
- Cylinder · Lyc · NA
- Component part number
- 05K21120
- Stage of operation
- CL
- How discovered
- B
- Nature of condition
- E, R
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.