As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PILOT REPORTED THE NR 2 ENGINE BEGAN TO 'BOG DOWN' DURING A PRECAUTIONARY LANDING TO AN OFFSHORE PLATFORM AFTER THE NR 2 ENGINE FIRE WARNING LIGHT ILLUMINATED. METALURGICAL EXAMINATION BY THE ENGINE MANUFACTURER REVEALED THE FIRST STAGE TURBINE WHEEL HAD ONE MISSING AIRFOIL (BLADE) AND SEVERAL OTHERS DAMAGED. THE METALURGICAL REPORTS STATES THE DAMAGE WAS MOST LIKELY CAUSED BY SULFIDATION.