As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ACFT RETURNED TO AIRPORT, GEAR WOULD NOT RETRACT. GEAR HANDLE WAS RED ALONG WITH ALL THE GEAR LIGHTS. NO OTHER INDICATIONS AND NO GEAR MOVEMENT. MAINTENANCE WAS UNABLE TO DUPLICATE ON GROUND. PSEU SHOWING FAULT CODES DIN01A AND DIN02A. AS PER FIM LGCIP (LANDING GEAR SELECTOR CONTROL UNIT) REPLACED. GEAR SWINGS CARRIED OUT WITH NO FAULTS FOUND. NO NEW CODES IN PSEU. AIRCRAFT RETURNED TO SERVICE. TEAR DOWN REPORT REQUESTED FOR LGCIP.