As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LEFT MAIN LANDING GEAR FORWARD DOOR AMBER CAUTION LIGHT REMAINED ON AFTER GEAR SLECTED UP. DOOR VISUALLY CONFIRMED OPEN. GEAR WOULD NOT EXTEND WITH NORMAL SELECTION. ALTERNATE EXTENSION CARRIED OUT. GEAR DOOR SENSOR GAP TOO WIDE, ALSO DOOR ROD ADJUSTED.