What was found
LEFT ENGINE ENGINE VIBRATION INDICATION: DURING INITIAL CLIMBOUT THE LEFT FAN VIB STARTED INCREASING AS HIGH AS 3.0. WE LEVELED OFF AND PULLED THE POWER BACK AND THE VIB DECREASED TO 2.0 AND REMAINED THIS HIGHER SETTING ON ARRIVAL. THE FLYING PILOT ALSO FELT VIBRATION. REMOVED LH ENGINE SPINNER AND FAN BLADES NEED OK TO INSTALL LH ENGINE SPINNER AND FAN BLADES(TECH)DW PERFORMED LH ENGINE FAN BLADE LUBE IAW GE CF34BJ SM 72-00-00 (TECH)DW (RII)JMA OK TO INSTALL LH ENGINE FAN BLADES AND SPINNER (RII)JMA INSTALLEED LH ENGINE FAN BLADES AND SPINNER IAW GE CF34BJ SM 72-00-00 (TECH)DW (RII)JMA OPERATIONAL TEST REQUIRED (TECH)DW PERFORMED OPERATIONAL CHECK IAW GE 34BJ SM 72-00-00 (TECH)DW (RII)JMA OPERATIONAL TEST SATISFACTORY (TECH)DW (RII)JMA