What was found
TRANSMISSION SPINDLE MOUNT, WAS FOUND TO HAVE EXCESSIVE PITTING CORROSION DURING A 1200 HR TRANSMISSION TOP CASE INSPECTION. R & R WITH -0-TT, NEW SPINDLE. SENT OLD CORE TO VENDOR BUT UPON NDT INSP, VENDOR REJECTED CORE DUE TO POSSIBLE STRESS CRACKS AND WAS THEREFORE SCRAPPED. PROBABLE CAUSE: DUE TO METAL FATIGUE BECAUSE OF AGE OF COMPONENT. COMPONENT IS NOT TRACKED AS A TIME LIFE COMPONENT AND IS ONLY NDT`D AT 2400 HR TRANSMISSION O/H. REQUIRE COMPONENT TO BE NDT`D AT 1200 HR INSPECTION IN ADDITION TO 2400 TRANSMISSION O/H AND/OR INTRODUCE TIME LIFE LIMIT ON SPINDLE.