As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALL LANDING GEAR RETRACTION DID NOT RETRACT - LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. GEAR HANDLE WOULD NOT MOVE AND WAS STUCK IN THE DOWN POSITION. WE HAD NORMAL 3 GREEN AND NO RED GEAR INDICATIONS. **SUPPLEMENTAL INFORMATION - INSPECTED WOW SWITCHES & FOUND LT WOW SWITCH TO BE DIRTY. CLEANED & RECONNECTED CONNECTOR AS REQUIRED. MULTIPLE GEAR SWINGS IAW MM 32-30-00. NO DEFECTS NOTED.