As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)#2 ENGINE ON FIRE AT FL410; FIRE EXTINGUISHED AFTER FIRE DRILL COMPLETED. ENGINE SHUTDOWN. GROUND INSPECTION FOUND INTEGRATED DRIVE GENERATOR (I.D.G.) CASING BROKEN. STATOR HOUSING BROKEN. FILTER CONTAMINATED, PIECES OF PISTON BROKEN. THERMO RELIEF VALVE OPEN, OIL DRAINED. UNIT REMOVED & FORWARDED TO MANUFACTURER FOR INSPECTION.