What was found
MAIN CABIN DOOR TOP RELEASE FELL OFF. REINSTALLED MAIN CABIN DOOR UPPER RELEASE KNOB OPS CHECK NORMAL IAW AMM 52-10-00-05.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MAIN CABIN DOOR TOP RELEASE FELL OFF. REINSTALLED MAIN CABIN DOOR UPPER RELEASE KNOB OPS CHECK NORMAL IAW AMM 52-10-00-05.