What was found
(CAN) LOWERED THE GEAR HANDLE AND GEAR SHOWED IN TRANSIT, THEN E-CAM FOR GEAR NOT DOWN AND LOCKED. RECYCLED THE HANDLE AND GEAR CAME DOWN, LANDED WITHOUT INCIDENT. POST FLT REPORT FLAGS RT NLG DOOR OPEN SENSOR 38GA. INTERCHANGED WITH C1 CARGO PROX SWITCH. LGCIU TESTED ON SYSTEM 1 AND 2 WITH NO FAULTS. SERV.