What was found
EN ROUTE FROM ORD TO JFK RECEIVED RT ENG BLEED CAUTION MSG. A/C RETURNED TO ORD LANDED SAFELY. REMOVED AND REPLACED ACS CONTROLLER. OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EN ROUTE FROM ORD TO JFK RECEIVED RT ENG BLEED CAUTION MSG. A/C RETURNED TO ORD LANDED SAFELY. REMOVED AND REPLACED ACS CONTROLLER. OPS CHECK GOOD.