What was found
DURING FLIGHT THE FOLLOWING EICAS MSG'S POSTED: RAD ALT FLAG, TCAS FAIL, GPWS FAIL, WINDSHEAR FAIL STATUS MSG'S, AND SPOILERONS, FLT SPOILERS INBD GRND SPOILERS AND OTBS GRND SPOILERS CAUTIONS MSG'S. ACOMPLISHED FLAPS 20 LANDING IAW QRH. (EMERGENCY DECLARED) R & R RAD ALT COMPUTER (TRANCEIVER) IAW AMM 34-44-01, OPS CHECK GOOD. (CLOSED)