As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT MAIN GEAR WOULD NOT LOCK DOWN. CYCLED THE GEAR, AND STILL NO GREEN LIGHT ON THE LEFT MAIN. -HYD PRESS- LIGHT STARTED FLASHING, AND THE GEAR EVENTUALLY LOCKED DOWN AFTER APPROX 2-3 MINUTES. REMOVED AND REPLACED LT MAIN GEAR ACTUATOR AND OPS CHECKED GOOD IAW CE560XL MM 32-30-04.