As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG FAILED STG 1 HPT BOROSCOPE. EXCESSIVE BURN THROUGH DAMAGE TO HPT STG 1 BLADE. BLADE BURN THROUGH JUST AFT OF LEADING EDGE. COMPLETELY THROUGH BLADE ALSO THE INNER AFT SIDE OF REMAINING LEADING EDGE HAS A CRACK AROUND MID SPAN. REPLACED ENGINE. NEW SERIAL NUMBER IS 222182. NR 1 ENGINE ACCOMPLISH ENGINE RUN IDLE LEAK CHECK OF GEAR BOX CRANK PAD COVER. ACP IDLE LEAK CHECK. NO LEAKS DETECTED.