What was found
THE CREW REPORTED SPOILER FAIL MESSAGE IN FLIGHT AND PERFORMED AN AIR RETURN BACK TO ORD. MX INSPECTED AND REMOVED AND REPLACED SPOILER PROX SENSOR CONNECTOR, CONNECTOR PIN P1166. OPERATIONAL CHECKS WERE GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
THE CREW REPORTED SPOILER FAIL MESSAGE IN FLIGHT AND PERFORMED AN AIR RETURN BACK TO ORD. MX INSPECTED AND REMOVED AND REPLACED SPOILER PROX SENSOR CONNECTOR, CONNECTOR PIN P1166. OPERATIONAL CHECKS WERE GOOD.