As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING A SCHEDULED MAINTENANCE CHECK, THE LEFT PROPELLER HUB NR 2 AND NR 3 BLADE BORE RETAINING RACES WERE FOUND TO BE CRACKED. MAINTENANCE REMOVED AND REPLACED THE AFFECTED RACES, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE (M)