As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 PROPELLER REMAINED IN FEATHER FOR 90 SECONDS AFTER ENGINE START WITH CONDITION LEVERS MOVED TO MAX. FOUND NO FAULT IN CDS. GROUND RUN NR 1 ENGINE WAS ABLE TO DUPLICATE PROBLEM. R & R NR 1 ENGINE OSG IAW AMM TASK 61-20-26-000-801,61-20-26-400-801. OP'S CHECKED GOOD. C/W FUNCTIONAL TEST OF THE NR 1 PROPELLER TIME TO UNFEATHER IAW AMM TASK 61-20-00-720-801. FUNCTIONAL TEST GOOD. NO FURTHER DEFECT NOTED, NO LEAK NOTED. RETURNED TO SERVICE.