What was found
COMPLETED 60 MONTH MAST INSPECTION, FOUND CORROSION ON MAST POLE IN AREA ON RETAINING NUT THREADS, AND THE RETAINING NUT THAT WAS BEYOND ALLOWABLE LIMITS IAW PRODUCT SUPPORT EVALUATION. REPLACED MAST POLE AND RETAINING NUT. THERE WAS NO TORQUE ON THE RETAINING NUT WHEN REMOVED FOR THE INSPECTION AND THE PRO-SEAL WAS NOT SEALING AGAINST THE MAST POLE, THUS CAUSING MOISTURE AND CORROSION ON THE POLE AND RETAINING NUT.