diff --git a/Models/Instruments/Upper-ECAM/Upper-ECAM.nas b/Models/Instruments/Upper-ECAM/Upper-ECAM.nas
index 2c361fe0..5f91c862 100644
--- a/Models/Instruments/Upper-ECAM/Upper-ECAM.nas
+++ b/Models/Instruments/Upper-ECAM/Upper-ECAM.nas
@@ -1008,7 +1008,7 @@ emesary.GlobalTransmitter.Register(A320EWD);
 
 var input = {
 	fuelTotalLbs: "/consumables/fuel/total-fuel-lbs",
-	slatLocked: "/fdm/jsbsim/fcs/slat-locked",
+	slatLocked: "/fdm/jsbsim/fcs/sfcc/slat-locked",
 	
 	# N1 parameters
 	N1_1: "/ECAM/Upper/N1[0]",
diff --git a/Nasal/Libraries/property-tree-setup.nas b/Nasal/Libraries/property-tree-setup.nas
index 406bcf12..833fb4da 100644
--- a/Nasal/Libraries/property-tree-setup.nas
+++ b/Nasal/Libraries/property-tree-setup.nas
@@ -110,7 +110,7 @@ var Fdm = {
 			brake: [props.globals.getNode("/fdm/jsbsim/fcs/left-brake-cmd-norm"),props.globals.getNode("/fdm/jsbsim/fcs/right-brake-cmd-norm")],
 			flapDeg: props.globals.getNode("/fdm/jsbsim/fcs/flap-pos-deg"),
 			slatDeg: props.globals.getNode("/fdm/jsbsim/fcs/slat-pos-deg"),
-			slatLocked: props.globals.getNode("/fdm/jsbsim/fcs/slat-locked"),
+			slatLocked: props.globals.getNode("/fdm/jsbsim/fcs/sfcc/slat-locked"),
 		},
 		Fbw: {
 			aileron: props.globals.getNode("/fdm/jsbsim/fbw/aileron-sidestick"),
diff --git a/Systems/a320-fcs.xml b/Systems/a320-fcs.xml
index 0b85affc..a36b959b 100644
--- a/Systems/a320-fcs.xml
+++ b/Systems/a320-fcs.xml
@@ -830,39 +830,49 @@
 	
 	<channel name="Slats">
 		
-		<switch name="fcs/slat-locked-cmd">
+		<switch name="fcs/sfcc/slat-locked-cmd">
 			<default value="0"/>
 			<test logic="AND" value="1">
-				fcs/slat-locked-cmd eq 1
+				<test logic="OR">
+					fcs/sfcc/unit1-avail eq 1
+					fcs/sfcc/unit2-avail eq 1
+				</test>
+				fcs/sfcc/slat-locked-cmd eq 1
+				/systems/navigation/adr/operating-2 eq 1
 				<test logic="OR">
 					/gear/gear[1]/wow ne 1
-					/systems/navigation/adr/output/cas-1 ge 60
+					/systems/navigation/adr/output/cas-2 ge 60
 				</test>
 				<test logic="OR">
-					/systems/navigation/adr/output/aoa-1 gt 7.6
-					/systems/navigation/adr/output/cas-1 lt 154
+					/systems/navigation/adr/output/aoa-2 gt 7.6
+					/systems/navigation/adr/output/cas-2 lt 154
 				</test>
 			</test>
 			<test logic="AND" value="1">
-				fcs/slat-locked-cmd eq 0
+				<test logic="OR">
+					fcs/sfcc/unit1-avail eq 1
+					fcs/sfcc/unit2-avail eq 1
+				</test>
+				fcs/sfcc/slat-locked-cmd eq 0
 				/controls/flight/flaps-input ne 0
+				/systems/navigation/adr/operating-2 eq 1
 				<test logic="OR">
 					/gear/gear[1]/wow ne 1
-					/systems/navigation/adr/output/cas-1 ge 60
+					/systems/navigation/adr/output/cas-2 ge 60
 				</test>
 				<test logic="OR">
-					/systems/navigation/adr/output/aoa-1 gt 8.5
-					/systems/navigation/adr/output/cas-1 lt 148
+					/systems/navigation/adr/output/aoa-2 gt 8.5
+					/systems/navigation/adr/output/cas-2 lt 148
 				</test>
 			</test>
 		</switch>
 		
-		<switch name="fcs/slat-locked">
+		<switch name="fcs/sfcc/slat-locked">
 			<default value="0"/>
 			<test logic="AND" value="1">
 				/controls/flight/flaps-input eq 0
 				fcs/slat-pos-deg le 18.01
-				fcs/slat-locked-cmd eq 1
+				fcs/sfcc/slat-locked-cmd eq 1
 			</test>
 		</switch>
 		
@@ -871,7 +881,7 @@
 			<test logic="AND" value="0.0">
 				/controls/flight/flaps-input eq 0
 				fcs/slat-pos-deg le 18.01
-				fcs/slat-locked eq 1
+				fcs/sfcc/slat-locked eq 1
 			</test>
 			<test value="100">
 				/systems/acconfig/autoconfig-running eq 1