As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT BLEED DUCT WARNING, FOLLOWED QRH PROCEDURES ACFT RETURNED TO DEPARTURE, EMERGENCY DECLARED. PERFORMED LEAK TEST, INSPECTION AND CONTINUITY CHECK OF LT BLEED AIR SYS AND LT BLEED LOOP B IAW FIM TASK 36-21-01 AND AMM 36-10-00. LEAK TESTED GOOD. OPS CHECKED GOOD. NO DEFECTS FOUND AT THIS TIME.