As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON T/O AT 4000 FT, LOUD BANG ON ENG NR 1, VIBRATION UP TO 9.5. ENGINE FAILED. FIRE HANDLE PULLED BUT BOTTLES NOT FIRED BY FLIGHT CREW. THIS IS AN OLD PN HPT BLADE FAILURE - 13,000 CYCLES ON THE OLD PN BLADES. THIS IS THE FOURTH -5A ENGINE SUFFERING THE OLD PN HPT BLADE FAILURE.