As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR FAILED TO EXTEND OR LOCK WHEN GEAR SELECTED DOWN. RED UNSAFE LIGHT ON AND NOTICABLE VIBRATION. RECYCLED AND ALL 3 GEAR POSITION LIGHTS CAME ON. LANDED WITHOUT INCIDENT. REMOVED AND INSTALLED A NEW NOSE GEAR UPLOCK ACTUATOR. OPS AND LEAK CHECKS GOOD AT THIS TIME. ALL WORK DONE IAW CESSNA 560XL MM CHAPTER 32-30-05.