What was found
AIRCRAFT RETURNED TO PLATFORM DUE TO (F/S FAIL) AND (TRI FAIL) FLAGS WERE SHOWN IN THE LT FLIGHT DIRECTOR. CADC NR 1 WAS RESEATED, BUT FAILURE CONTINUED, THE CADC NR 2 WAS RESEATED, ALL CORRECT. CADC NR 1 WAS REPLACED IAW MM 34-16-01, BUT (MACH) AND (LT ALTIMETER) FLAGS WERE SHOWN. CADC NR 1 WAS REMOVED, CONNECTORS WERE CLEANED AND COMPUTER WAS INSTALLED AGAIN, TESTED CORRECT. DURING OVERNIGHT CHECK, SYSTEM WAS TESTED IAW MM 34-16-01, ALL CORRECT.