What was found
DIAGNOSTICS REPORTS, NR 2 ENGINE TREND DATA SHOWS A SUDDEN INCREASE IN LOW PRESSURE ROTOR VIBRATION LEVELS. DATA INDICATES HARDWARE INSPECTION AND FAN RELUBE REQUIRED. ACFT GROUNDED. FOUND EXCESSIVE LUBE ON FAN BLADE. FOUND ALL PLATFORMS HAD TORN SEALS. R & R ALL PLATFORMS. FOUND ALL SHIMS TO HAVE COATING LOSS/WORN. NEW SHIMS INSTALLED. PERFORMED VIBE SURVEY IAW TEST 7. MM TASK NR 71-00-00-700-814-F00. FAN BLADE LUBE T/C 78472002 COMPLETE. VIBES WERE LESS THAN 1.0 UNITS AT ALL POWER SETTINGS. GROUND VERIFICATION OF SIG, SYS VERIFIED.