As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE REMOVING LANDING GEAR FAIRING TO ACCESS JACK POINT, IT WAS DISCOVERED THE REAR BOLT SECURING THE MLG TO THE MLG JOIST ASSY WAS BROKEN AT START OF THE THREADED AREA. THE REASON FOR FAILURE WAS UNKNOWN. INITIATING A TIME CHANGE MIGHT PREVENT THIS.