As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLEED AIR DUCT FAIL ANNUCIATOR ILLUMINATED DURING CLIMB. CREW RETURNED TO THE AIRPORT. MX UNABLE TO FIND LEAK ON THE GROUND DURING RUNS. ANOTHER FLIGHT TO CONFIRM CONDITION. ANNUCIATOR ILLUMINATED AGAIN DURING CLIMB. CREW RETURNED TO THE AIRPORT. MX FOUND BLEED LINE RUPTURE INSIDE THE ACM BOX. REPLACEMENT LINE INSTALLED.