What was found
(CAN) ON INITIAL CLIMB OUT, SUDDEN VIBRATION OCCURRED. AIRCRAFT LANDED SAFELY. INVESTIGATION REVEALED FAILURE OF THE 7/16 INCH ZERO STEM EXHAUST VALVE IN CYLINDER NR 2.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) ON INITIAL CLIMB OUT, SUDDEN VIBRATION OCCURRED. AIRCRAFT LANDED SAFELY. INVESTIGATION REVEALED FAILURE OF THE 7/16 INCH ZERO STEM EXHAUST VALVE IN CYLINDER NR 2.