As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRFT WAS GROUNDED: AIR RETURNED TO DFW ACCOUNT FLIGHT CONTROL INDICATION MESSAGE. FLIGHT DECLARED EMERGENCY AND AIRCRAFT LANDED OVERWEIGHT. FCE-R CABINET, ACE MODULE HAS EVIDENCE OF MOISTURE EGRESS. REPLACED FCE-R CABINET ACE MODULE IN THE AFT E/E COMPARTMENT. AMM 27-02-17.