As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AIRCRAFT ARRIVAL MAINTENANCE FOUND L/H LOWER FUSALAGE AIRSTART ACCESS DOOR DETACHED AND MISSING FROM AIRCRAFT FUSELAGE, UPON ACCESS DOOR LEAVING FUSELAGE IN FLIGHT, SMALLER HOLE WAS MADE AT CENTER OF FUSEALAGE CENTERLING. INSTALLED LH GROUND AIR SUPPLY ACCESS DOOR PER REF 52_49_04_4_0. AC OK FOR SERVICE.