What was found
#1 ENGINE VIBRATION REPORTED ON START UP BY PILOT. AFTER REMOVAL - MECHANIC REPORTED SUSPECT SHAFT SIDE PLAY
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
#1 ENGINE VIBRATION REPORTED ON START UP BY PILOT. AFTER REMOVAL - MECHANIC REPORTED SUSPECT SHAFT SIDE PLAY