What was found
FLIGHT 5438 - FLAPS FAIL CAUTION MESSAGE AT ZERO DEGREES ON TAXI OUT. 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.