What was found
DURING FLIGHT LT AND RT T/R ENG FAIL ICAS MESSAGES APPEARED THEN SHORT FINAL SP INHIBIT INOP AND EICAS MIS-COMPARE MESSAGES APPEARED. ONCE ON THE GROUND, LT AND RT FADEC MAJOR ICAS MESSAGES APPEARED. WENT THROUGH LT AND RT PROPULSION SYS DIAGNOSTICS AND THE LT HAD CODE SA AND THE RIGHT HAD CODES SA AND YA. CHECKED THE LT, RT MLG & NOSE LG WOW SWITCHES FOUND OK. CHECKED WOW CONNECTOR PLUGS FOR CORROSION, NO ABNORMALITIES FOUND. OPERATED GEAR SEVERAL TIMES, COULD NOT DUPLICATE MESSAGES AT THIS TIME. WORKED IAW AMM 32-30-00 & AND 32-00-00 78-30-11.