As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 3202 - ON CLIMB-OUT FROM MSP, THE CABIN DOOR ANNUNCIATOR LIGHT ILLUMINATED. AFTER THE CREW TURNED OFF THE BLEEDS AND DEPRESSURIZED THE CABIN, THE LIGHT EXTINGUISHED. THE AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACED THE UPPER CENTER PASSENGER DOOR SWITCH. SYSTEM OPERATED SATISFACTORILY. (X)