As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONICS SMOKE WARNING ON AND OFF SEVERAL TIMES DURING DESCENT. NO OTHER INDICATIONS OF SMOKE. ACFT TOOK ON SOME WATER AT DEPARTURE RAMP THAT MAY HAVE GONE INTO AVIONICS COMPARTMENT. CLEANED AVIONICS AREA OF WATER. PERFORMED OPS TEST OF SMOKE DETECTION SYS, IAW AMM 26-15-00-05. OPS CHECKED NORMAL, ACFT OK FOR SERVICE. F