As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GE DIAGNOSTICS REPORTS #2 ENGINE S/N 894103. TREND DATA SHOWS AN INCREASE IN TAKEOFF AND CRUISE FAN VIBRATIONS AS INDICATED BY THE FRONT AND REAR VIBRATION PICKUPS. CORE VIBRATIONS HAVE BEEN STABLE DURING THE SAME TIME FRAME. GROUNDED - YES. REPLACED 7 PLATFORMS FOR THE #2 ENG FAN BLADE LUBE IAW ASA TC 78472010.