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 AFTER LAST FAN LUBE. DATA SCATTER INDICATES HARDWARE INSPECTION AND FAN RELUBE REQUIRED. C/W TASK CARD PERFORMED ON BOARD TRIM BALANCE AND VIBRATION SURVEY. POSITION NR 2 REMOVED P14 INSTALLED P13 WEIGHT POSITION NR 35 REMOVED P14 INSTALLED P12 WEIGHT POSITION NR 36 REMOVED P12 INSTALLED P14 WEIGHT REF MM 71 00 00 700 F00 AND 71 00 00 750 803 F00.