What was found
CREW REPORTED ROUGH RUNNING ENGINE/VIBRATION IN CRUISE FLIGHT LASTING 2-3 MINUTES ALONG WITH A # 2 CYLINDER EGT FLUCTUATION. TROUBLESHOT PROBLEM TO FIND # 2 CYLINDER EXHAUST VALVE STICKING.
- Difficulty date
- June 11, 2025
- Submitted
- June 11, 2025
- Operation
- General aviation
- Aircraft
- N187CA
- Make and model
- Cessna 172S
- Aircraft serial
- 172S13102
- Aircraft time
- 326 hours
- Engine
- Lyc IO360L2A
- Engine time
- 326 hours
- Propeller
- Mcauly 1A170E
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Valve Guide
- Part number
- 16R22126
- Condition
- Coked
- Location
- Engine
- Part time
- 326 hours
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- R, J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.