As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED FAN VIBRATION ON THE NR 1 ENGINE ROSE TO 1.8 WITH CLIMB POWER, REDUCED POWER TO N1 TO 79 PERCENT IN CLIMBOUT. VIBRATION AT 1.7-ITT 658-N2 82.7-FF 1520-98 OIL TEMP-OIL PRESSURE 61. ALL OTHER INDICATIONS NORMAL. MAINTENANCE PERFORMED ENGINE RUNS AT HIGH POWER SETTINGS AND COULD NOT DUPLICATE. THE AIRCRAFT WAS RELEASED FOR SERVICE.