As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLEED AIR DUCT MASTER WARNING ILLUMINATED ON TAKEOFF REMAINS ON EVEN AFTER LEFT ENGINE SHUTDOWN PER QRH COMPLIED WITH 14TH STAGE DUCT LEAK CHECK. NO LEAKS. OHMED OVERHEAT ELEMENTS. ALL CHECK GOOD. COMPLIED WITH CHECK FLIGHT, NO DEFECTS NOTED. (M)