As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN LANDING GEAR SELECTED UP AFTER TAKE OFF, GEAR DID NOT RETRACT. GEAR SELECTED BACK DOWN WITH NORMAL DOWN AND LOCKED INDICATION ON ALL GEAR. NORMAL LANDING CARRIED OUT WITHOUT INCIDENT. TROUBLESHOOTING FOUND INTERMITTENT MIRCOSWITCH CONTACTS IN LANDING GEAR SELECTOR SWITCH ASSEMBLY WHEN HANDLE SELECTED UP. ASSEMBLY REPLACED AND GEAR SWINGS COMPLETED. NO FURTHER FAULTS.