As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DEPARTING, THE CREW OBSERVED A DUAL LT MAIN GEAR UNLOCK INDICATION AFTER GEAR WAS SELECTED UP. THE ACFT RETURNED AND LANDED AT POINT OF DEPARTURE WITHOUT FURTHER PROBLEM. MX FOUND THE LANDING GEAR CONTAMINATED WITH SIGNIFICANT SLUSH/ICE. THE ACFT WAS THAWED AND MULTIPLE GEAR SWINGS CARRIED OUT WITH NO FAULT INDICATION OBSERVED. THE ACFT WAS RETURNED TO SERVICE.