What was found
ENGINE EXPERIENCED UNCONTAINED TURBINE SECTION FAILURE IN-FLIGHT. LOCATION OF PENETRATION THROUGH PENUM AND CONDITION OF REMAINING COMPONENTS INDICATE FAILURE OF THE 3RD STAGE ROTOR RESULTING FROM CONTACT OF ROTOR HUB WITH 3 INCH STATOR INNER SHEET METAL SEAL SUPPORT. THIRD STATOR WAS DUE REPLACEMENT IN 8 CYCLES AS REQUIRED BY AD NOTE 92-26-08. CSO: 592