As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLUE BLADE TIP CAP M/R SCREW. CORROSION AROUND ALL SCREWS, FIRST TWO THREADS. SEVERAL SCREWS APPEARED TO NO HAVE A FLUSH MOUNTING UNDER THE SCREW END. LENDING EDGE TOP SCREW HAD DEVELOPED A CRACK ( 90 PERCENT THROUGH SCREW) AND BROKE UPON REMOVAL. LARGE SCREWS, INSTALLATION TORQUE 100 IN/LBS BREAK AWAY TORQUE UPON REMOVAL WAS 170-100 IN/LBS.(K)