What was found
ENROUTE AT 370, 2 HOURS INTO FLIGHT, RECEIVED A REPEAT AMBER ECAM, LANDING GEAR DOOR SYS FAULT, ACCOMPANIED BY AMBER NOSE DOOR LIGHT. LIGHT & ALERT WENT OUT AFTER GEAR EXTENSION. REMOVED BOTH SWITCH'S 37GB AND 33GB FROM LT DOOR UPLOCK. OLD SEALANT ON BASE AND MOUNT PLATES FOR SWITCHS. CLEANED ALL RESIDUAL SEALANT AWAY AND INSTALLED SWITCHES OBSERVING THAT THEY BOTH MATED EVENLY ON TO SURFACE. IAW MM 32-00-00/TSM 32-61-00. CONDUCTED DOOR OPENING AND CLOSING TEST REF MM 32-31-00 WITH NO FAULTS NOTED.