As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LIQUID PENETRANT AND EDDY CURRENT INSPECTION WERE COMPLETED ON DHC8-100 BRAKE HOUSINGS. ON ONE UNIT ALL (6) PISTON CAVITIES WERE FOUND CRACKED JUST BELOW THE INLET AND BLEEDER PORTS. ON THE SECOND THREE PISTON CAVITIES WERE FOUND CRACKED IN THE SAME AREA.