As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) ENGINE ANTI-ICE VALVE PIPE PN 1159P41706-7 WORN AND BROKEN BY CLAMP. CLAMP WAS INCORRECT PART PN S230SST (CORRECT CLAMP PN GC500BV04CTN). THE TEFLON SLEEVE ON THE CLAMP HAD WORN AWAY RESULTING IN METAL TO METAL CONTACT BETWEEN THE CLAMP AND PIPE WHICH WAS CHAFED TO THE POINT OF FAILURE. UNAPPROVED PART. PERSONNEL/MAINTENANCE ERROR.