As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAKEOFF REJECTED DUE TO AUTOFEATHER NOT ARMING ON TAXIWAY WITH BRAKES SET, ADVANCED POWER LEVERS AND SYS OPS NORMAL. ANOTHER TAKEOFF OK WITHOUT MX. GROUND RAN ACFT IAW SRT MANUAL. COMPLIED WITH AUTOFEATHER OPS CHECKED MULTIPLE TIMES WITH NO DEFECT NOTED. CLEARED MEL 25-6-2.