What was found
NOTICED RIGHT ENGINE AMBER REV MESSAGE IN FLIGHT. COMPLIED WITH QRH REVERSER UNLOCKED CHECKLIST. REVERSERS OPERATED NORMALLY ON LANDING. AFTER STOWING AMBER REV MESSAGE REMAINS ON RIGHT ENGINE. WITH WDM 78-36-22 AND 71-51-22, PERFORMED RESISTANCE CHECK WIRE BETWEEN D3110A PIN D9 TO D41522J PIN 3 FOUND 9 OHM. DISCONNECTED PLUG D1018P ON RH ENG, FOUND RECEPTACLE D1218J DIRTY. CLEANED BOTH RECEPTACLE AND PLUG PER SWPM 20-10-04. RECONNECTED PLUG D1018P AND PLUG D41522P, PERFORMED RESISTANCE OF PROX SENSOR S165, FROM PSEU CONNECTOR D3210A, PINS C9/D9 FOUND NOW 11.2 OHM. REVERSED MEL PROCEDURE, AND PERFORMED T/R RH ENG OPS TEST PER AMM 78-31-00-5-1 OPS CHEKC OK, NO AMBER REV MESSAGE. MEL CLOSED.