As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE SUPPORT WAS CRACKING AT THE MOUNTING FLANGE BEND RADII AT THE (4) AND (8) O`CLOCK POSITIONS. THE CRACKS HAD PREVIOUSLY BEEN STOPDRILLED BUT HAD CONTINUED PAST THE STOPDRILLING. SUSPECT THAT CRACKING STARTS AT SHARP/ROUGH ALUMINUM EDGES AND IS AGGRAVATED BY THE PROPELLER’S PROXIMITY CAUSING PULSATION AGAINST THE LIGHT. (TC NR 20070313005)