As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF THE GEAR UNLOCKED LIGHT AND THE HYDRAULIC PRESS ON LIGHT REMAINED ILLUMINATED AFTER RETRACTING THE LANDING GEAR. REMOVED & REPLACED LT UPLOCK ACTUATOR ASSY SPRING AND LT UPLOCK SWITCH. CYCLED GEAR MULTIPLE TIMES. OPS CHECKS GOOD IAW CE560 MM 32-31-05.