As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOTICED NUMEROUS OF OUR MFG BRAKE DISC, PN 164-00806 BEING CRACKED. THE CRACKS BEGIN WHERE MFG NAME IS STAMPED ON THE BRAKE DISC. FOUND 3 CRACKS WHERE THE LETTER (P) IS STAMPED AND ONE CRACK WHERE THE LETTER (R) IS STAMPED. PROBABLE CAUSE IS THE STAMPING LOCATION SETS UP A STRESS POINT. RECOMMEND DIFFERENT STAMPING LOCATION TO PREVENT RECURRENCE. (K)