As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EUG - FLIGHT 2040 - ON TAKEOFF APPROACHING 70 KNOTS, THE AUTOFEATHER ARM LIGHT DID NOT ILLUMINATE. ABORTED THE TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE REPLACED THE AUTOFEATHER CONTROL RELAY 6121-K5. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.