As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE INDICATES VIB YELLOW CAUTION ON TAKEOFF ROLL BELOW 60 KNOTS. ABORTED TAKEOFF, NO VIBRATION FELT. REVIEWED HISTORY, PERFORMED TWO SEPARATE ENGINE POWER RUNS, NO VIBRATION NOTED. FAN BLADE INSPECTED, NO DISCREPANCIES. TAKEOFF WAS PERFORMED IN SEVERE ICING CONDITIONS. SUSPECT ICE BUILD-UP ON FAN. AIRCRAFT OK FOR SERVICE. (M)