As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) JUST AFTER TAKEOFF OUT OF LA RONGE HEADING NORTH APPROXIMATELY 80 MILES, THE BAGGAGE POD SMOKE ALARM WENT OFF. THE AIRSCREW TURNED AROUND, & DECLARED AN EMERGENCY TO LANDED BACK IN YVC. MAINTENANCE FOUND NO SMOKE OR FIRE IN THE POD. THE SMOKE DETECTOR WAS REMOVED, THE LENSE WAS CLEANED, DETECTOR REINSTALLED AND TESTED S. THIS IS AN ONGOING PROBLEM WITH THIS UNIT IN THAT IF THE LENSE (SENSOR) GET A LITTLE DUSTY, IT WILL GIVE FALSE INDICATION. AIRCRAFT WAS REKEASED FOR SERVICES.