As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2948, THE CREW REPORTED A BLEED ONE LEAK IN CLIMB OUT THAT CLEARED UPON CLOSING BLEED ONE WITH NO APU. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT, REMOVED AND REPLACED BLEED DUCT O-RING AT JOINT 19B IN THE LT CARGO COMPARTMENT, OPERATIONALLY AND LEAK CHECKED WITH NO DEFECTS NOTED. AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.