As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ADC 1 MESSAGE DISPLAYED ON BOTH PFDS, CHECKED CIRCUIT BREAKERS, SWITCHED TO ADC2 MESSAGE EXTINGUISHED. RETURNED TO FIELD. LANDING UNEVENTFUL. FOUND WIRE 7740-W0974M-22-4 FOR AHRS REVERSION TO BE SHORTED. SPLICED WIRE. NO FURTHER DEFECTS NOTED. RETURNED TO SERVICE.