As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURNED TO PLATFORM DUE TO DURING TAXING, THE RT ENG VIBRATION REACHED 0.5 UNITS. ACFT WAS SENT TO THE HANGAR & MX PERFORMED LUBRICATION OF THE RT ENG FAN ROTOR BLADES & FAN DISK IAW AMM 72-21-02 & VIBRATION TEST NR 7 WAS PERFORMED IAW MM 72-00-00, TESTED CORRECT.