As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED. FORWARD CARGO DOOR INDICATED OPEN DURING CLIMBOUT. MAINTENANCE ACCOMPLISHED RESISTANCE CHECK OF PROXIMITY SENSOR 30WV, MEASURED THE CLEARANCE BETWEEN TARGET AND SENSOR, AND MEASURED WITHIN RANGE. MAINTENANCE ALSO CLEANED PROXIMITY SENSOR AND ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK PER TASK 32-31-00-810-832-A AND TASK 52-31-21-400-009-A AND TASK 52-31-00-810-801-A.