As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, INTERMITTENT NOSE GEAR THUMPING SOUND FROM THE NOSE GEAR WAS NOTICED. ALSO THE UNLOCK LIGHT KEPT BLINKING. ALTHOUGH AT A LESSER FREQUENCY THIS HAPPEND SEVERAL TIMES DURING THE FLIGHT. ON DESCENT AT ABOUT FL220 IS STARTED NON STOP. GEAR WAS EXTENDED AT ABOUT 17000 FT TO STOP IT. R & R THE RT MLG UNLOCK SWITCH HARDWARE IAW MM 32-30-00. SYSTEM OPS CHECKED GOOD.