What was found
(CAN) A/C HAD A BLADE REPLACED DUE TO A CRACK. NEW BLADE WAS VERY DIFFICULT TO BALANCE, SEEMED HEAVIER THAN THE OTHERS. BALANCING OF BLADES MET CRITERIA AND IT WAS RELEASED FOR SERVICE. SWEEPING OF BLADES WAS USELESS IN ACHIEVING BALANCE. SECOUND DAY OF THE JOB PILOT STARTED AC AND WAS ROLLING UP TO IDLE WHEN AC WENT INTO MODERATE M/R INBALANCE. ENGINE WAS SHUTDOWN. CREW MEMBER NOTICED A WHITE MIST COMING OUT OF TIP CAP. ON SHUTDOWN, PILOT NOTICED THAT TRAILING TIP CAP WAS MISSING OFF END OF ONE BLADE, THAT THERE SEEM TO BE A SLIGHT DEFORMATION IN SKIN TOP AND BOTTOM APPROX. 8 IN. FROM TIP. BLADE WAS RETURNED TO THE MFG FOR EVALUATION. (TC NR20051123006)