As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT REPORTED MAXIMUM POWER COULD NOT BE ACHIEVED ON #1 ENGINE AT FL330, UNLESS IGNITERS WERE TURNED ON. HOT SECTION INSPECTION REVEALED ALL HIGH PRESSURE TURBINE BLADES WERE DAMAGED WITH SEVERAL BLADES MISSING LARGE PIECES. CAUSE AT THIS TIME IS NOT KNOWN.