As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 PROPELLER TOOK =35 SEC TO UNFEATHER ON START UP. REMOVED FROM SERVICE. REPLACED OVERSPEED GOVERNOR ON NR 1 ENGINE, IAW Q400 AMM TASK 61-20-26-000-801 AND 61-20-26-400-801. OPERATIONS TEST GOOD, NO FURTHER DEFECTS NOTED. PERFORMED FUNCTIONAL TEST OF PROP TIME TO UNFEATHER, IAW Q400 AMM TASK 61-20-00-720-802. FUNCTIONAL TEST GOOD. RETURNED TO SERVICE.