As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - FLT 4682 - THE LEFT PROP DI-ICE LIGHT ILLUMINATED AFTER 45 SECONDS. ALL ATTEMPTS TO RESET BY THE CHECKLIST FAILED. FLIGHT CONTROL CHOSE TO HAVE AIRCRAFT RETURN TO BOS WHERE IT LANDED WITHOUT INCIDENT. BOS MAINTENANCE REPLACED THE LEFT PROP DE-ICE RELAY AND THE AIRCRAFT WAS RETURNED TO SERVICE. (M)