As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT FAN VIBRATION 4.5 DURING CLIMB TO LEVEL OFF. FAN VIB 1.2 DURING CRUISE.(<P>PERFORMED FIM 71-05 1852 UP TO SHORT 2 BLOCK 5. PERFORMED ENGINE RUN IAW B767 AMM 71-00-00. NO FAULTS NOTED. VIBRATION WITHIN LIMITS PER AMM 71-00-00.<BR /></P>)