As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDIS 690 36-21 2337261 30SEP20 ALB CLOSE. DURING CRUISE BLD 1 LEAK MESSAGE ON EICAS, CREW C/W QRH MSG GONE. FACT 01OCT20 03:28 ALB. FOUND TUBE TO BE DISCONNECTED ON DUAL TEMP CONTROL VALVE. INSTALLED TUBE AND R & R CLAMP, IAW EMB 145 AMM 21-60-01. PERFORMED AIR BLEED LEAK AND OPERATIONS CHECK IAW EMB 145 AMM 36-00-00. LEAK AND OPERATIONSS CHECK GOOD.