As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT DURING CLIMB RECEIVED A BLEED 1 LEAK MESSAGE. THE AIRCRAFT RETURNED TO KMSN AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE O-RING AT JOINT 13 OF THE BLEED 1 SYSTEMS. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.