As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT AT 26,000 FEET A CHATTERING COULD BE FELT IN THE NOSE WHEEL AND THE GEAR UNLOCK LIGHT BOUNCED ON AND OFF WITH EACH THUMP. IT LASTED ABOUT 20 SECONDS BEFORE STOPPING. REPACKED NLG. OPS CHECK GOOD. IAW CE-680 CMM 32-20-01.