As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THE CABIN DEPRESSURIZED AT AN EXCESSIVE RATE WITH THE NR 1 BLEED VALVE CLOSED. A/C RETURNED TO CLEVELAND WITHOUT FURTHER INCIDENT. MX REMOVED / REPLACED THE NR 1 ENGINE BLEED SHUTOFF VALVE IAW EMBRAER MM 36-11-05. OPERATIONAL CHECKS WERE GOOD IAW 36-00-00. A/C WAS RELEASED FOR SERVICE.