What was found
CRACKED AT ATTACHMENT FLANGE - AFTER DISCOVERY OF SHEARED LH BRAKE ROTOR FLANGE, RH BRAKE ROTOR REMOVED AND INSPECTED. 10X MAGNIFICATION REVEALED SEVERAL SPOTS OF PITTING CORROSION IN THE VALLEYS OF CIRCUMFERENTIAL MACHINING STRIATIONS AND POSSIBLE CRACK INDICATIONS. SUBSEQUENT FLUORESCENT PENETRANT INSPECTION REVEALED NUMEROUS SPOTS OF PITTING CORROSION IN CIRCUMFERENTIAL MACHINING STRIATIONS CLUSTERED NEAR THE THREE BOLT HOLES AT THE 90 DEGREE BEND FROM THE BODY TO THE ATTACHMENT FLANGE. FAINT CRACK INDICATIONS WERE ALSO OBSERVED IN ASSOCIATION WITH THE CORROSION AND FOLLOWED THE CIRCUMFERENTIAL MACHINING STRIATIONS. DISC WAS INSTALLED 11/05/2024 AND WAS IN SERVICE 1 YEAR AND 5 MONTHS.