As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKEOFF, ENGINE INDICATION AND CREW ALERTING SYSTEM MESSAGE, BODY DUCT LEAK WITH LOSS OF PRESSURIZATION AT ABOUT 6,000 FEET. QUICK REF. HAND BOOK DRILL ACCOMPLISHED AND A/C RETURNED. FOUND DUCT IN C2 CARGO TO WHEEL WELL AREA BLOWN. NEW DUCT INSTALLED AND LEAK CHECK CARRIED OUT.