As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONICS SMOKE INDICATION. FLIGHT FROM KRFD AND KPTK. DIVERTED TO KMKE. INSPECTED WIRING AND AVIONICS BOXES. FOUND NO EVIDENCE OF OVERHEAT. PERFORMED AVIONICS SMOKE INDICATING SYSTEM CHECK IAW SAAB MM 26-13-00-05. OPS CHECK GOOD. REMOVED AND REPLACED AVIONICS SMOKE DETECTOR IAW SAAB MM 25-13-05-04. OPS CHECK GOOD. REMOVED AND REPLACED AVIONICS RACK FAN IAW SAAB MM 21-23-10-02. OPS CHECK GOOD.