As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER GEAR RETRACTION, RED UNLOCK GEAR LIGHT REMAINED ILLUMINATED. AFTER TOUCHDOWN NOTICED MODERATE VIBRATION COMING FROM GEAR. PERFORMED GEAR SWING COULD NO DUPLICATE DISCREPANCY. MEASURED NOSE STRUT FOUND OVER EXTENDED. REMOVED LOWER BARREL ASSY AND REPACKED STRUT USING CPD750-5 KIT PER 750 CMM CHAPTER 32-20-62 AND SERVICED PER 750 M/M 12-10-38. GROUND OP'S CHECKED GOOD.