As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - FLT 5257 - DURING CLIMB-OUT, CREW NOTICED UNUSUAL PROPELLER VIBRATION. REDUCING POWER ON NR 1 ENGINE REDUCED THE VIBRATION. MAINTENANCE REMOVED AND REPLACED THE NR 1 BLADE ON THE NR 1 PROPELLER IAW ATR MM. OPS WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)