As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG HIGH VIBRATION 7.0. OPERATED AT 66 N1 VIB 2.0. REVIEW OF CMC NIL EXCEEDANCES RECORDED REF CREW REPORT AIRCAFT WAS OPERATING IN ICING CONDITIONS. REF.FTD 71-13002. NIL MSG NOTED HI VIBRATION NOTED. INSPECTION CARRIED OUT AS PER AMM G71-00-00-3A-280A NIL DEFECTS NOTED ENGINE GRD RUN CARRIED OUT L & R ENGINES ALL PARAMETERS AND INDICATIONS NORMAL NIL VIBRATION.