As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT THEY RECEIVED A BLEED LEAK 1 MESSAGE ON THE EICAS. THE CREW FOLLOWED THE QUICK REFERENCE HANDBOOK AND THE MESSAGE WENT AWAY. THE CREW DIVERTED TO KCMH AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACE THE O-RINGS AT THE BLEED JOINTS IN THE LEFT CARGO WALL AND UNDER THE CARGO FLOOR. OPERATIONAL AND LEAK CHECKS OF THE BLEED 1 SYSTEM WERE GOOD WITH NO FURTHER DEFECTS NOTED.