As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN THE GEAR IS SELECTED UP AND IT'S UP AND STOWED, A LOUD CLUNK OCCURS FROM THE NOSE AREA. FOUND NOSE GEAR UPLOCK AFT JAM NUT LOOSE AND NOT MAKING ADEQUATE CONTACT WITH UPLOCK ROLLER. RIGGED AND SAFETIED NOSE GEAR UPLOCK SWITCH IAW MM 32-61-00. COMPLIED WITH GEAR SWINGS AND PERTAINING PORTIONS OF GEAR FUNCTIONAL CHECK IAW MM 32-01-00. OPERATIONAL CHECKS GOOD.