What was found
ANTI ICE DUCT WARNING MESSAGE MOMENTARILY THEN ANTI ICE CAUTION ASSOCIATED WITH L/R WING A/I CCAUTION MESSAGES. PERFORMED EMER CHECKLIST AND ANTI ICE DUCT MESSAGES DISAPPEARED. (FLIGHT 4903 - FILED CLOSED)INTERROGATED MDC FOUND NO CURRENT FAULTS POSTED AT THIS TIME. PERFORMED BITE TEST OF AILC IN REF TO AMM 30-12-12, CHECKS GOOD AT THIS TIME. PERFORMED LEAK TEST OF WING ANTI-ICE DUCTS IN REF TO AMM 30-11-00, CHECKS GOOD AT THIS TIME. NO FURTHER DEFECTS NOTED, A/C OK FOR CONTINUED SERVICE.