As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT MLG WOULD NOT RETRACT ON DEPARTURE, LANDING GEAR EMERGENCY T-HANDLE PULLED AND MLG PNEUMATIC BOTTLE DISCHARGED. TROUBLESHOT RIGHT MAIN GEAR, JACKED AIRCRAFT AND PERFORMED RETRACTION CHECK FOUND RT MLG UP-LOCK FAILED. REMOVED AND REPLACED UP-LOCK SWITCH PER CESSNA 560 MM CHAPTER 32-31-05, OPS CHECKED GOOD.