What was found
FLIGHT 5363- RECEIVED A FLAP FAIL CAUTION MESSAGE WHILE AT THE GATE WITH FLAP SETTING AT 20 DEGREES. COMPLIED WITH AD 2006-12-21 FLAP CAUTION MESSAGE "FIRST EVENT" MAINTENANCE ACTION, PARAGRAPH (G) 1,2,3 (A,B,C). FLAP SYSTEM WAS RESET WITH NO FURTHER FLAP CAUTION MESSAGES.