What was found
(CAN) DURING A 13,000 CYCLE FUSELAGE INSPECTION, IT WAS DISCOVERED THAT THE BONDING MATERIAL OF THE CIRCULAR WINDOW RETAINER WAS CRACKED 3/4 OF THE CIRCUMFERENCE. THE POLARIZED WINDOWS AND THE OUTER WINDOW WERE REMOVED, THE BONDED RETAINER COULD BE LIFTED FROM THE A/C SKIN. THE RETAINER WAS REPAIRED IAW BEECH MAINTENANCE MANUAL CHAPTER 56-20-00, PAGE 205, INSPECTION & REPAIR OF WINDOW ATTACHMENT FRAME. PART TC: 13,437.