What was found
PASSING THROUGH APPROXIMATELY 27000 FT WHILE CLIMBING, THE NR 2 LP VIBRATION INDICATOR WAS AT 4.0 IN THE CAUTION RANGE. REDUCED N1 TO 77% BEFORE INDICATION WENT GREEN. RAN CHECKLIST AND PERFORMED A PERCAUTIONARY ENGINE SHUTDOWN IAW ENGINE ABNORMAL VIBRATION CHECKLIST. PERFORMED ENGINE VIBRATION IAW FIM 72-00-00 THRU BLOCK E OF FIGURE 109. PERFORMED E2 VIBRATION CHECK IAW MM 72-00-00. ALL PARAMETERS WITHIN LIMITS. REMOVED AND CLEANED THE RT ENGINE FAN BLADES, REMOVED AND REPLACED THE RT ENGINE FAN BLADE PINS AND BUMPER BAND, REINSTALLED FAN BLADES IAW ESM 72-00-00-800-915 SPECIAL PROCEDURES 097, VIBRATION RUN 0.3 TDMI RESTORED.