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 A SUDDEN INCREASE IN LOW PRESSURE ROTOR VIBRATION LEVELS. DATA SCATTER INDICATES FAN LUBE REQUIRED. ACFT GROUNDED. PERFORMED NR 2 ENGINE FAN LUBE REF TASKCARD 78472002 AND ALSO TAST 7 VIB SURVEY REF AMM 71-00-00. OPS CHECK GOOD OF ENGINE VIB. R & R 8 PLATFORM ASSYS DUE TO WEAR AND ALSO 1 SPACER ASSY DUE TO WEAR REF TASK 78472002. R & R 24 SHIM ASSYS DUE TO WEAR REF TASK 78472002.