As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED R PACK HIGH PRESS CAUTION AFTER TAKEOFF IN CLIMB,PER QRH PER MEL MESSAGE DID NOT CLEAR RAN APENDIX B PER MEL. "AIRCRAFT REMOVED FROM SERVICE" R/R RH PRSOV IAW CRJ 200 AMM 21-51-43 OPS CHECK GOOD NO MSG ON EICAS SN OFF 1845 SN ON 1277 LEF