As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NARROWEST PART OF THE DUCT CLOSE TO THE AIRCRAFT SKIN GOING INTO THE ENGINE WAS CRACKED ALL THE WAY AROUND. AIRCRAFT HAD A BLEED DUCT FAILURE ANNUNCIATOR LIGHT COME ON IN-FLIGHT. DUCT WAS IN TWO PIECES WHEN REMOVED. (SHOULD BE ONE). (BEECHJET 400T - COMMERCIAL COUNTERPART BEECHJET 400A).