As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST AFTER TAKEOFF CREW HEARD LOUD NOISE FROM NUMBER 1 ENGINE, FOLLOWED BY EGT GOING TO 653. CREW SHUT DOWN THE ENGINE AND RETURNED TO STL. METAL WAS FOUND IN THE TAIL PIPE AND THE ENGINE WAS REPLACED. FOUND VANES FROM THE 10TH AND 11TH STAGE COMPRESSOR, QUADRANT NUMBER 4, HAD FRACTURED AT THE 10 O'CLOCK POSITION AND MOVED INTO THE GAS PATH STRIKING THE C-10 BLADES. THE DAMAGE THEN MULTIPLIED.