What was found
ORD - FLT 5712 - THE NR 1 AVIONICS COOLING FAN FAILED IN FLIGHT. MAINTENANCE REMOVED AND REPLACED FLOW SENSOR HM23. SYSTEM OPS CHECKED GOOD. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ORD - FLT 5712 - THE NR 1 AVIONICS COOLING FAN FAILED IN FLIGHT. MAINTENANCE REMOVED AND REPLACED FLOW SENSOR HM23. SYSTEM OPS CHECKED GOOD. (M)