As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT MAIN GEAR WOULD NOT EXTEND WITH UNLOCK LIGHT ILLUMINATED, PERFORMED EMERGENCY GEAR EXTENTION CHECKLIST. GEAR AND INDICATION REMAINED THE SAME. PERFORMED EMERG GEAR CHECKLIST AGAIN WITH NO RESULTS. ON SHORT FINAL GEAR INDICATED 3 GREEN. REMOVED AND REPLACED RT MAIN LANDING GEAR ACTUATOR WITH REPAIRED UNIT. SYSTEM OPS AND LEAK CHECK GOOD. REF CESSNA 560XL MM 32-30-04. ACTUATOR REPAIRED BY CESSNA AIRCRAFT COMPANY, CN2918C.