What was found
EXTREME VIBRATION OF AIRCRAFT ENGINE AFTER START UP. TROUBLESHOT AND FOUND #4 CYLINDER EXHAUST VALVE STUCK OPEN
- Difficulty date
- April 23, 2025
- Submitted
- April 23, 2025
- Operation
- General aviation
- Aircraft
- N772FG
- Make and model
- Cessna 172S
- Aircraft serial
- 172S13277
- Aircraft time
- 264 hours
- Engine
- Lyc IO360L2A
- Engine time
- 264 hours
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Exhaust Valve
- Part number
- 17B23936
- Condition
- Stuck
- Location
- Nr 4 Cylinder
- Part time
- 264 hours
- Component
- Cylinder · Lyc
- Component part number
- 05K21104
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.