What was found
ALL 3 PITOT PROBES INOP AFTER TAKEOFF. ALL RESET ATTEMPTS NO HELP, LGCIU'S, FWC'S, SDAC'S, AND CYCLE OF THE GEAR NO HELP. SUSPECT AIR GROUND MODE PROBLEM. REPLACED LGCIU 2, ALL SYSTEMS WERE CHECKED AND FOUND TO FUNCTIONING NORMALLY. NO REPEATS AFTER THIS INCIDENT.