As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING ROUTINE MAINTENANCE THE MAINTENANCE CREW NOTICED TWO SMALL CRACKS ON THE RT ENGINE GAS GENERATOR CASE. THESE CRACKS ARE LOCATED AT THE FIRE SEAL MOUNTING ANGLES. THE ENGINE WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.