As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THE LANDING GEAR WOULD NOT RETRACT AFTER DEPARTURE, RETURNED FOR MAINTENANCE. MAINTENANCE ADJUSTED MICROSWITCH AND SWUNG GEAR CK GOOD. AIRCRAFT DEPARTED GEAR WOULD NOT RETRACT, RETURN TO DEPARTURE AIRPORT, MAINTENANCE R/R 17G1 MICROSWITCH PERFORMED GEAR SWINGS AND RETURN AIRCRAFT TO SERVICE. NO FURTHER PROBLEMS ON NEXT FLIGHTS.