As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, LEFT ENGINE HAD A COMPRESSOR STALL WITH RISING EGT, MAXIMUM 657C. POWER WAS REDUCED TO IDLE AND EGT STABLIZED AT 550C, RETURNED TO DEN. INSPECTED ON GROUND, FOUND METAL IN THE TAILPIPE. ENGINE DISASSEMBLY FOUND A FAILED T-1 HIGH PRESSURE TURBINE BLADE.