What was found
FLT#2457, LGA-DEN. (AIRCRAFT DIVERTED TO JFK) 'ENG 1 VIBRATION IN CLIMB ABOVE 10,000 THROUGH FL200 HIGH VIB NOTED 1.7 FLUCTUATE BETWEEN0.1-1.6 ON DECENT. VIBRATION FELT BY PAX AND FA DURING CLIMB; SYSTEM CHECKED AND PERFORMED FAN TRIM BALANCE WITH EVMU ONE-SHOT METHOD. REMOVED WEIGHT 5A0136 FROM BOLT 27 AND INSTALLED WEIGHT 5A0138 IN BOLTS 11 AND 34.PERFORMED TEST # 8 VIBRATION SURVEY IAW AMM 71-00-00-700-022-B AND TEST # 11 HIGH POWER ASSURANCE TEST IAE AMM 71-00-00-710-013-C. ALL PARAMETERS NORMAL.'