As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE REMOVED DUE TO 3RD STAGE TURBINE WHEEL INSPECTION. 3RD STAGE WHEEL RETURNED TO ALLISON FOR INSPECTION PER LETTER C1245F-RMG-1195. ZYGLO INSPECTION REVEALED THREE EACH CRACKS 3/16" LONG, 1/16" FROM SHROUD ON L/E. CRACKSLOCATED 180 DEGREES AROUND WHEEL, ONE EACH INDICATION 1/8" LONG ON L/E 1/16" FROM HUB AREA. INSTALLED SERVICEABLE 3RD STAGE WHEEL.