As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 1803 -ATB- FLIGHT RETURNED TO ATL DUE TO MULTIPLE EEC, AFDS AND FMS FAULTS. / CORRECTIVE ACTION: EXTENDED AOS WITH MULTIPLE PARTS CHANGED. FOUND GDX3 IN P36 WITH PIN UNLOCKED (GND FOR K310 F/O P/S CURRENT SENSE) AND 2 WIRES BROKEN AT GDX7 (GND FOR K10437 AUX P/S CURRENT SENSE) IN P37. WIRING REPAIRED. (6393087)