As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IN CLIMB THROUGH 17,000 FEET, CAUTION MESSAGE PASSENGER DOOR LATCH FOLLOWED BY AURAL WARNING. QUICK REF CARRIED OUT. EMERGENCY DEPRESSURIZATION INITIATED. AIRCRAFT RETURNED. MAIN CABIN DOOR STRIKER PLATE RE-WORKED. DOOR RIGGING CHECKED. TOTAL CYCLES: 6.642.