As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN MAIN CARGO DOOR SELECTED OPEN, THE DOOR SWITCHES AND SECURING PINS BLEED TO CLOSED AND LOCKED POSITION PREVENTING DOOR FROM BEING CLOSED. MOMENTARY POSITIONING OF DOOR OPERATING SWITCH WILL TEMPORARILY RE-SEQUENCE MECHANISM TO FACILITATE DOOR CLOSURE. REPLACED MAIN CARGO DOOR CLOSED SEQUENCE SWITCH. CYCLED SEVERAL TIMES AND SERVICEABLE.