What was found
MCO - ON CLIMB-OUT, COULD NOT MAINTAIN CABIN ALTITUDE. RETURNED TO MCO. CLEANED AND RESEATED CABIN PRESS. CONTROLLER SYSTEM CANNON PLUG. OPS CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MCO - ON CLIMB-OUT, COULD NOT MAINTAIN CABIN ALTITUDE. RETURNED TO MCO. CLEANED AND RESEATED CABIN PRESS. CONTROLLER SYSTEM CANNON PLUG. OPS CHECK OK.