As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE TREND DATA SHOWS AN INCREASE IN LOW PRESSURE ROTOR VIBRATION LEVELS. DATA SCATTER INDICATES FAN LUBE REQUIRED. ACFT GROUNDED. ACCOMPLISHED NR 2 ENGINE FAN BLADE LUBE, VIBRATION SURVEY TEST 7 AND FAN REBALANCE, VIBRATION LEVELS BELOW .9.