As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FIRST FLIGHT OF THE DAY. AUTOFEATHER TEST WAS SUCESSFULLY PERFORMED DURING PREFLIGHT PREPARATION. DURING TAKE-OFF ROLL THE AUTOFEATHER SYTEM DIDN`T ARM. THE TAKE-OFF WAS ABORTED ACCORDING SOP PASSING 50KIAS. THE AIRCRAFT WAS TAXIED BACK TO THE RAMP.