As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HPN - FLT 4780 - ON TAKEOFF CREW RECEIVED AN AVIONICS SMOKE DETECTOR WARNING. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AVIONICS AREA AND FOUND. NO SIGNS OF SMOKE OR FIRE. DETECTOR WAS FOUND TO BE AT FAULT. DETECTOR WAS DEFERRED AND AIRCRAFT RETURNED TO SERVICE. (M)