As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L BLEED DUCT CAUTION MSG IN FLIGHT. / UPON LEAK CHECK FOUND LEAK AT LH CONNECTOR DUCT FWD OF FLOW CONTROL VALVE AND AT APU BLEED AIR CHECK VALVE. REMOVED AND REPLACED CONNECTOR DUCT IAW AMM 36-19-03-000/400. PERFORMED LEAK TEST IAW AMM 36-10-00-790-801. LEAK TEST GOOD. NO EICAS BLEED DUCT OR DUCT MON FAULT DETECTED.