As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNCOMMANDED RIGHT MAIN GEAR DOOR OPENED FOR ABOUT ONE SECOND DURING CRUISE. REMOVED FROM SERVICE. INTERROGATED THE PSEU, SHOWED A FAULT RGDRCL. INDUCTANCE VALUE FOR RT GEAR DOOR CLOSED PROXIMITY SENSOR WAS OBSERVED TO BE SPORATIC. REMOVED AND REPLACED THE RT MLG DOOR CLOSED PROXIMITY SENSOR S20 IAW AMM 32-61-06-000-802, AND 32-61-06-400-801. L. INDUCTANCE CHECK AND COCKPIT INDICATION FOR DOORS WAS GOOD. AIRCRAFT RETURNED TO SERVICE.