What was found
(CAN) ENGINE RAN ROUGH AND SMOKING IN FLIGHT, LANDED ON LAKE, INSPECTION REVEALED EXHAUST VALVE FAILURE AND RESULTED IN SEVERE PISTON DAMAGE. CYLIDER REPLACED AND AIRCRAFT RETURNED TO MAIN BASE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) ENGINE RAN ROUGH AND SMOKING IN FLIGHT, LANDED ON LAKE, INSPECTION REVEALED EXHAUST VALVE FAILURE AND RESULTED IN SEVERE PISTON DAMAGE. CYLIDER REPLACED AND AIRCRAFT RETURNED TO MAIN BASE.