As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT PACK 2 VALVE CLOSED AND BLEED 2 VALVE CLOSED MSG ON EICAS . FOLLOWED QRH PROCEDURES MSGS CAME BACK FOLLOWED BY BLEED 2 LEAK. R/R LOWER 2.5 SLEEVE ON DUAL HEAT EXCHANGER IAW AMM 21-51-02 OPS CHECK GOOD AND LEAK CHECK GOOD AT THIS TIME. A/C OK FOR SERVICE.