As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF APPROXIMATELY 5,000 MSL, THE CARGO VALVE CLOSED. IT ILLUMINATED AT LEVEL OFF FL 280. THE CABIN CONTINUED TO CLB REACHING A MAX OF 9,000 FEET. CABIN ALT DIFF OF 6 PSID. ATB CVG. REPLACED RT PACK FLOW CONT VALVE. FOUND RT ACM INOPERATIVE. FWD RT ACM TO MCO/PLAC PER MEL 21-00-01C.