What was found
POWER TURBINE OUTER SHAFT HAS SEVERE DEEP CORROSION AT DIMPLES AND CURVIC COUPLING. CORROSION AT DIMPLES 360 DEGREES AROUND AND OVER HALF AS DEEP AS THE DIMPLE. SEVERAL CURVIC CORRODED TOPS, INSIDE AND OUT. PT INNER SHAFT - THE FIRST .25 INCH OF THREAD CORRODED AND NICKLE LIFTED AND MISSING FORWARD OF THREADS AND CORROSION PITTED.