As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT AT FL 310, INTERMITTENT BANGING NOISE HEARD BENEATH COCKPIT FLOOR AND ACCOMPANIED BY NOSE GEAR DOOR ANNUNCIATOR LIGHT. ADJUSTED LEFT AND RIGHT NOSE LANDING GEAR WHEEL WELL DOOR ACTUATION ROD, LEFT AND RIGHT FORWARD AND AFT DOOR STOPS IAW B727 M/M 32-22-1. OPS CHECKED GOOD.