As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, NOTICED COCKPIT PFD HAD A SPEED LIMIT TAPE AT 270 KTS. LOOKED AT GEAR PANEL ON FWD PANEL AND NOTICED BOTH MAIN GEAR INDICATING DOWN. ALSO NOTICED AUTO THROTTLES DISENGAGED. INSPECTED, AND PERFORMED A BITE CHECK OF PROXIMITY DETECTOR UNIT. FOUND UNIT HARD FAULTED. R & R PROXIMITY BOX IAW 32-31-71. PERFORMED 30/40 LAND TEST. IAW MM 22-40-00-05-01. SYS OPS NORMAL AT THIS TIME. NO FURTHER ACTION REQ. ACFT CAT III FULLY OPERATIONAL.