As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE OFF RT ENGINE VIBRATION WAS FELT THROUGHOUT THE AIRPLANE WITH N1 UP TO 5.1 AND OIL PRESSURE FLUCTUATION BETWEEN 70-135 PSI. DURING DECENT VIBRATION INDICATION LOWERED TO 4.1 AND BACK UP TO 5.1. ACCOMPLISHED LP FAN BLADE RE-SORT PER ENGINEERING. ACCOMPLISHED MCM 71-94-10, ALL PARAMETERS WITHIN AMM LIMITS. THE AIRCRAFT WAS GROUNDED.