As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FLAP C/B POPPED OUT WHEN FLAPS SELECTED DOWN ON FINAL. C/B PUSHED BACK IN ON THE GROUND AND FLAPS WERE SELECTED DOWN, THEN UP AND C/B POPPED OUT AGAIN. WEATHER WAS -25C WHEN INCIDENT OCCURED. ACFT WAS ON FIRST FLIGHT AFTER MULTIPLE HOURS OF COLD-SOAKING. FLAP SYSTEM IN FLEET HAS PROVEN TO HAVE COLD WEATHER ISSUES.