As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CPR - FLT 8788 - RIGHT MAIN LANDING GEAR FORWARD DOORS DID NOT CLOSE WHEN GEAR UP WAS COMMANDED. THE DOOR SEQUENCE VALVE WAS OUT OF ADJUSTMENT. READJUSTED LANDING GEAR DOOR SEQUENCE VALVE IAW EMB MM AND OPERATIONALLY TESTED, OPS CHECK OK. (M)