diff --git a/Nasal/ECAM.nas b/Nasal/ECAM.nas
index 30be5563..a26c0509 100644
--- a/Nasal/ECAM.nas
+++ b/Nasal/ECAM.nas
@@ -301,7 +301,6 @@ var LowerECAM = {
 			setprop("/it-autoflight/output/athr-warning", 0);
 			setprop("/ECAM/Lower/light/clr", 0);
 			setprop("/ECAM/warnings/master-caution-light", 0);
-			LowerECAM.failCall("sts");
 			return;
 		}
 
@@ -309,12 +308,12 @@ var LowerECAM = {
 			setprop("/it-autoflight/output/ap-warning", 0);
 			setprop("/ECAM/Lower/light/clr", 0);
 			setprop("/ECAM/warnings/master-warning-light", 0);
-			LowerECAM.failCall("sts");
 			return;
 		}
 
 		if (b == "clr" and getprop("/ECAM/Lower/man-select") == 0 and getprop("/ECAM/Lower/fault-select") == 0) {
 			ecam.ECAM_controller.clear();
+			return;
 		}
 		
 		if (getprop("/ECAM/Lower/fault-select") == 0) {
diff --git a/Nasal/ECAM/ECAM-controller.nas b/Nasal/ECAM/ECAM-controller.nas
index d027cc3e..ed076337 100644
--- a/Nasal/ECAM/ECAM-controller.nas
+++ b/Nasal/ECAM/ECAM-controller.nas
@@ -26,6 +26,8 @@ var rightLineIndex = 0;
 var statusIndex = 0;
 
 var flash = 0;
+var hasCleared = 0;
+var statusFlag = 0;
 
 var warning = {
 	new: func(msg,colour = "g",aural = 9,light = 9,hasSubmsg = 0,lastSubmsg = 0) {
@@ -45,7 +47,7 @@ var warning = {
 		return t
 	},
 	write: func() {
-		if (me.active == 0) {return;}
+		if (me.active == 0) { return; }
 		lineIndex = 0;
 		while (lineIndex < 7 and lines[lineIndex].getValue() != "") {
 			lineIndex = lineIndex + 1; # go to next line until empty line
@@ -69,15 +71,11 @@ var warning = {
 	},
 	sound: func() {
         if (me.aural > 1 or me.noRepeat2 == 1 or me.active == 0) {return;} 
+        aural[me.aural].setBoolValue(0); 
         me.noRepeat2 = 1;
-        if (aural[me.aural].getBoolValue()) { 
-            aural[me.aural].setBoolValue(0); 
-            settimer(func() {
-                aural[me.aural].setBoolValue(1);
-            }, 0.15);
-        } else {
-            aural[me.aural].setBoolValue(1);
-        }
+		settimer(func() {
+			aural[me.aural].setBoolValue(1);
+		}, 0.15);
     },
 };
 
@@ -236,16 +234,20 @@ var ECAM_controller = {
 		}
 	},
 	clear: func() {
+		hasCleared = 0;
 		foreach (var w; warnings.vector) {
 			if (w.active == 1) {
 				if (w.hasSubmsg == 1) { continue; }
 				w.clearFlag = 1;
+				hasCleared = 1;
+				statusFlag = 1;
 				break;
 			}
 		}
 		
-		if (lines[0].getValue() == "") { # all messages cleared - call status
+		if (hasCleared == 0 and statusFlag == 1) {
 			libraries.LowerECAM.failCall("sts");
+			statusFlag = 0;
 		}
 	},
 	recall: func() {
diff --git a/Nasal/buttons.nas b/Nasal/buttons.nas
index e530ac0f..0bdb5a8e 100644
--- a/Nasal/buttons.nas
+++ b/Nasal/buttons.nas
@@ -635,9 +635,13 @@ var athrWarn = func(type) {
 }
 
 var lockThr = func() {
-	setprop("/systems/thrust/thr-lock-time", getprop("/sim/time/elapsed-sec"));
-	setprop("/systems/thrust/thr-locked", 1);
-	lockTimer.start();
+	state1 = getprop("/systems/thrust/state1");
+	state2 = getprop("/systems/thrust/state2");
+	if ((state1 == "CL" and state2 == "CL" and getprop("/systems/thrust/eng-out") == 0) or (state1 == "MCT" and state2 == "MCT" and getprop("/systems/thrust/eng-out") == 1)) {
+		setprop("/systems/thrust/thr-lock-time", getprop("/sim/time/elapsed-sec"));
+		setprop("/systems/thrust/thr-locked", 1);
+		lockTimer.start();
+	}
 }
 
 var checkLockThr = func() {
@@ -664,7 +668,13 @@ var checkLockThr = func() {
 	state1 = getprop("/systems/thrust/state1");
 	state2 = getprop("/systems/thrust/state2");
 	
-	if ((state1 == "CL" and state2 == "CL" and getprop("/systems/thrust/eng-out") == 0) or (state1 == "MCT" and state2 == "MCT" and getprop("/systems/thrust/eng-out") == 1)) {
+	if ((state1 != "CL" and state2 != "CL" and getprop("/systems/thrust/eng-out") == 0) or (state1 != "MCT" and state2 != "MCT" and getprop("/systems/thrust/eng-out") == 1)) {
+		lockTimer.stop();
+		setprop("/systems/thrust/thr-locked", 0);
+		setprop("/systems/thrust/thr-locked-alert", 0);
+		setprop("/systems/thrust/thr-lock-time", 0);
+		setprop("/systems/thrust/thr-locked-flash", 0);
+	} elsif ((state1 == "CL" and state2 == "CL" and getprop("/systems/thrust/eng-out") == 0) or (state1 == "MCT" and state2 == "MCT" and getprop("/systems/thrust/eng-out") == 1)) {
 		setprop("/systems/thrust/thr-locked-alert", 1);
 		setprop("/systems/thrust/thr-lock-time", getprop("/sim/time/elapsed-sec"));
 		setprop("/systems/thrust/thr-locked-flash", 1);
@@ -704,11 +714,14 @@ var checkLockThr2 = func() {
 	
 	state1 = getprop("/systems/thrust/state1");
 	state2 = getprop("/systems/thrust/state2");
+	
+	
 	if ((state1 != "CL" and state2 != "CL" and getprop("/systems/thrust/eng-out") == 0) or (state1 != "MCT" and state2 != "MCT" and getprop("/systems/thrust/eng-out") == 1)) {
+		lockTimer2.stop();
 		setprop("/systems/thrust/thr-locked", 0);
 		setprop("/systems/thrust/thr-locked-alert", 0);
+		setprop("/systems/thrust/thr-lock-time", 0);
 		setprop("/systems/thrust/thr-locked-flash", 0);
-		lockTimer2.stop();
 	}
 }