As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HOVERING ON A TRAINING FLIGHT, THE PILOT NOTICED THAT TOT TEMPERATURE WAS HIGHER THAN NORMAL. AFTER TROUBLESHOOTING WHICH INCLUDED CHANGING BLEED VALVE AND CHECKING ANTI-ICE FOR PROPER CLOSING, THERE WAS NO CHANGE. POWER CHECK ON ENGINE INDICATED SUBSTANTIAL POWER LOSS. THIS WAS A RENTAL ENGINE SO THE AMOC WHICH OWNED THE ENGINE WAS NOTIFED. THEY CAME AND REMOVED THE ENGINE. UPON REMOVAL, A CRACK WAS NOTICED ON THE BACK OF THE COMBUSTION CASE NEXT TO THE FUEL NOZZLE ABOUT 3 INCHES LONG. ENGINE RETURNED TO AMOC FOR REPAIR. (X)