As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING ENGINE OVERHAUL, QTY 1 HIGH PRESSURE TURBINE BLADE WAS IDENTIFIED TO HAVE CRACKING IN THE TRANSITION ZONE FORWARD COOLING CIRCUIT. THIS WAS IDENTIFIED THOUGH FLOURESCENT PENETRANT INSPECTION OF THE SET OF BLADES. ALL OTHER BLADES IN THE SET DID NOT EXHIBIT CRACKING. THIS WAS IDENTIFIED DURING A SCHEDULED REMOVAL.