What was found
FLIGHT 5148 PRIOR TO GRR APPROACH RECEIVED A FLAP FAIL CAUTION AT ZERO DEGREE FLAP POSITION. CREW DECLARED AN EMERGENCY AND LANDED SAFELY. 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.