As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF CREW HEARD LOUD THUMP SOUND AND DOOR FWD CARGO EICAS MSG DISPLAYED. DOOR SYNOPTIC PG AND DOOR SHOWED UNLATCHED. CREW ALSO REPORTED LOW FREQ VIBRATION DURING CLIMBOUT. RTF SEA. *S/D* CALLED OUT TO ACCOMPLISH INSPECTION OF WIRING, SENSORS, AND PROXIMITY SYSTEM INTEGRITY. INSPECTION FOUND OIL AND DIRT ON SENSOR S52021. IN ADDITION AT SENSORS S52002, S52005, AND S52021 THE TARGET ONLY PARTIALLY COVERED THEIR RESPECTIVE SENSOR.