As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON GEAR RETRACTION, GEAR RETRACTED NORMALLY. AFTER HYD PRESS ON LIGHT EXTINGUISHED, RIGHT MAIN GEAR LOWER WITHOUT COMMAND. CLEANED & INSPECTED RT MAIN GEAR UPLOCK ACTUATOR ASSY & MICROSWITCH FOUND DEBRIS ON ACTUATOR & MICROSWITCH FOUND ROLLER ON GEAR STICKING. CLEANED & LUBED ROLLER. LUBED UPLOCK ACTUATOR & MICROSWITCH. PERFORMED MULTIPLE GEAR SWINGS, OPS CHECK GOOD, NO OTHER DEFECTS NOTED AT THIS TIME. ALL WORK DONE IAW CESSNA 560 ULTRA MM 32-30-00.