As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED AFTER DEPARTURE WHEN TRANSITIONING TO QUIET EPR POWER SETTING A SUDDEN LOUD AND EXTREME VIBRATION OCCURRED. OBSERVED LOSS OF EPR, N1 & N2. LT ENGINE WAS VERIFIED AS FAILING AND SOURCE OF VIBRATION WITH THROTTLE TO IDLE. EMERGENCY DECLARED AND NR 1 ENGINE SHUTDOWN DUE TO WORSENING VIBRATION. ACFT MADE A NORMAL LANDING WITHOUT INCIDENT. ENGINE FOUND SEVERELY DAMAGED TURBINE BLADES. NO DAMAGE FOUND TO INLET, FAN AND COMPRESSOR. NR 1 ENGINE REPLACED.