As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THIS NEW ALTERNATOR CAME EQUIPPED WITH A BLAST TUBE BOLTED TO THE REAR OF THE ALTERNATOR HOUSING FOR DYNAMIC AIR FLOW COOLING OF THE UNIT. THE BLAST TUBE WAS FOUND CRACKED OFF ITS MOUNTS IN ALL 3 LOCATIONS. IT HAD FALLEN DOWN AND WAS RESTING ON THE INTAKE MANIFOLD. THERE WAS NO SIGN OF THE BLAST TUBE CONTACTING ANY OTHER PART OF THE ENGINE TO CAUSE THIS FAILURE. NO OTHER DAMAGE REPORTED.