As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: WHEN CLOSING FLIGHT DECK DOOR INFLIGHT UPPER DEPRESSURIZATION PANEL FELL INTO FLIGHT DECK, UNABLE TO REINSTALL WITH LOWER PINS IN LOCKED POSITION TO SECURE DOOR; AIRCRAFT DIVERTED TO AND LANDED SAFELY AT CLT. ACCOMPLISHED INSPECTION OF UPPER DECOMPRESSION HINGE AND FUNTIONAL CHECK. PER AMM 52-51-00.