What was found
FLIGHT 5224 - DURING DTW APPROACH RECEIVED A FLAP FAIL CAUTION MESSAAGE AT 20 DEGREES, CREW DECLARED AN EMERGENCY, ABORTED FIRST APPROACH THEN LANDED WITHOUT INCIDENT ON SECOND ATTEMPT. COMPLIED WITH AD 98-20-01 FLAP CAUTION MESSAGE -FIRST EVENT- MAINTENANCE ACTION, PARAGRAPH (B) 1, 2, 3, (A, B, C AND E). FLAP SYSTEM WAS RESET WITH NO FURTHER FLAP CAUTION MESSAGES.