As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW RECEIVED A BLEED 1 LEAK MESSAGE AFTER TAKEOFF. THE QRH WAS FOLLOWED AND THE MESSAGE CLEARED. THE ACFT RETURNED AND LANDED WITHOUT INCIDENT. MX FOUND THE O-RINGS BAD A JOINTS 5, 13, AND 15. THE O-RINGS WERE REPLACED AND NO FURTHER DEFECTS WERE NOTED.