As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) UPON ARRIVAL AND SHUTDOWN OF ENGINES. APU RUNNING, F/O TURNED ON APU BLEED AIR & NOTICED WATER COMING OUT OF COCKPIT GASPER VENTS. WATER IN COOLING SYS CAUSED MULTIPLE AVIONICS FAILURES. MAINTENANCE DRAINED APPROXIMATELY 2.5 LITRES FROM COLD AIR SUPPLY DUCTING IN COCKPIT.