As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT MAIN LANDING GEAR WOULD NOT RETRACT WITH GEAR LEVER UP. FLIGHT CONTINUED TO DEN FROM COS. *S/D* REPLACED RT GEAR DOOR WARNING SWITCH, ADJUSTED AND CKD PER MAINTENANCE MANUAL. ACCOMPLISHED GEAR SWING, OPS CK GOOD. MANUAL GEAR DROP GOOD.