As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CARGO DOOR ARM/DISARM LIGHT CAME ON AFTER TAKEOFF FROM MCO, UNABLE TO PRESSURIZE CARGO WARNING LIGHT OFF. AIR TURN BACK TO MCO, GENERATED FROM PILOT REPORT. ADJUST S17 SWITCH (LOCK BAR SWITCH) OPS CHECK NORMAL PER PEMCO MM. RAN NR 3 ENGINE AND PRESSURIZED NORMAL. (M)