As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MKE - THE CREW REPORTED A NUMBER ONE ENGINE BLEED LEAK WARNING. THE AIRCRAFT RETURNED TO MKE WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE O-RINGS ON THE NUMBER ONE ENGINE T-TUBE, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.