As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 421 - SAN TO ONT - AFTER TAKEOFF FLIGHT CREW REPORTED BLEED LEAK. A/C DIVERTED TO ONT WITHOUT NOTIFICATION, BUT NO EMERGENCY WAS DECLARED, A/C LANDED WITHOUT INCIDENTS. MX PERSONNEL FOUND A BLEED LEAK IN THE CARGO COMPARTMENT, REMOVED AND REPLACED BOTH O-RINGS BEHIND PNL 272CRW. OPERATIONALLY CHECKED SATISFACTORY AND A/C WAS RELEASED TO RETURN FOR SERVICE.