As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER START NR 1 PROP WOULD NOT COME OUT OF FEATHER EVENTUALLY IT DID BUT VERY SLUGGISH. PROP DID NOT FEATHER AT SHUTDOWN. REMOVED NR 1 PROP OVERSPEED GOVERNER IAW Q400 AMM TASK 61-20-26-000-801. INSTALLED IAW TASK 61-20-26-400-801 OPS TEST GOOD. RETURNED TO SERVICE.