diff --git a/Sounds/SASA/CFM56B/external/cfm-idleRear.wav b/Sounds/SASA/CFM56B/external/cfm-idleRear.wav
index c30465ac..b83cc435 100644
Binary files a/Sounds/SASA/CFM56B/external/cfm-idleRear.wav and b/Sounds/SASA/CFM56B/external/cfm-idleRear.wav differ
diff --git a/Systems/cfm56-sound.xml b/Systems/cfm56-sound.xml
index c3cb6dd4..ca57a9a1 100644
--- a/Systems/cfm56-sound.xml
+++ b/Systems/cfm56-sound.xml
@@ -852,7 +852,7 @@
 			</condition>
 			<expression>
 				<table>
-					<property>/sim/sound/fake-n2[0]</property>
+					<property>/engines/engine[0]/n1-actual</property>
 					<entry><ind>14.0</ind> <dep>0.000</dep></entry>
 					<entry><ind>15.0</ind> <dep>0.010</dep></entry>
 					<entry><ind>19.0</ind> <dep>0.900</dep></entry>
@@ -875,7 +875,7 @@
 			</condition>
 			<expression>
 				<table>
-					<property>/sim/sound/fake-n2[0]</property>
+					<property>/engines/engine[0]/n1-actual</property>
 					<entry><ind>19.0</ind> <dep>1.00</dep></entry>
 					<entry><ind>42.5</ind> <dep>1.50</dep></entry>
 				</table>
@@ -894,11 +894,11 @@
 			</condition>
 			<expression>
 				<table>
-					<property>/sim/sound/fake-n2[0]</property>
+					<property>/engines/engine[0]/n1-actual</property>
 					<entry><ind>14.0</ind> <dep>0.000</dep></entry>
                     <entry><ind>15.0</ind> <dep>0.010</dep></entry>
-					<entry><ind>19.0</ind> <dep>0.900</dep></entry>
-					<entry><ind>41.7</ind> <dep>0.310</dep></entry>
+					<entry><ind>19.0</ind> <dep>1.000</dep></entry>
+					<entry><ind>41.7</ind> <dep>0.410</dep></entry>
 					<entry><ind>55.0</ind> <dep>0.240</dep></entry>
 					<entry><ind>57.2</ind> <dep>0.100</dep></entry>
 					<entry><ind>70.0</ind> <dep>0.018</dep></entry>
@@ -919,7 +919,7 @@
 			</condition>
 			<expression>
 				<table>
-					<property>/sim/sound/fake-n2[0]</property>
+					<property>/engines/engine[0]/n1-actual</property>
                     <entry><ind>14.0</ind> <dep>0.000</dep></entry>
                     <entry><ind>15.0</ind> <dep>0.010</dep></entry>
 					<entry><ind>19.0</ind> <dep>1.000</dep></entry>
@@ -1132,7 +1132,7 @@
 			</condition>
 			<expression>
 				<table>
-					<property>/sim/sound/fake-n2[1]</property>
+					<property>/engines/engine[1]/n1-actual</property>
 					<entry><ind>14.0</ind> <dep>0.000</dep></entry>
 					<entry><ind>15.0</ind> <dep>0.010</dep></entry>
 					<entry><ind>19.0</ind> <dep>0.900</dep></entry>
@@ -1155,7 +1155,7 @@
 			</condition>
 			<expression>
 				<table>
-					<property>/sim/sound/fake-n2[1]</property>
+					<property>/engines/engine[1]/n1-actual</property>
 					<entry><ind>19.0</ind> <dep>1.00</dep></entry>
 					<entry><ind>42.5</ind> <dep>1.50</dep></entry>
 				</table>
@@ -1174,11 +1174,11 @@
 			</condition>
 			<expression>
 				<table>
-					<property>/sim/sound/fake-n2[1]</property>
+					<property>/engines/engine[1]/n1-actual</property>
 					<entry><ind>14.0</ind> <dep>0.000</dep></entry>
                     <entry><ind>15.0</ind> <dep>0.010</dep></entry>
-					<entry><ind>19.0</ind> <dep>0.900</dep></entry>
-					<entry><ind>41.7</ind> <dep>0.310</dep></entry>
+					<entry><ind>19.0</ind> <dep>1.000</dep></entry>
+					<entry><ind>41.7</ind> <dep>0.410</dep></entry>
 					<entry><ind>55.0</ind> <dep>0.240</dep></entry>
 					<entry><ind>57.2</ind> <dep>0.100</dep></entry>
 					<entry><ind>70.0</ind> <dep>0.018</dep></entry>
@@ -1199,7 +1199,7 @@
 			</condition>
 			<expression>
 				<table>
-					<property>/sim/sound/fake-n2[1]</property>
+					<property>/engines/engine[1]/n1-actual</property>
                     <entry><ind>14.0</ind> <dep>0.000</dep></entry>
                     <entry><ind>15.0</ind> <dep>0.010</dep></entry>
 					<entry><ind>19.0</ind> <dep>1.000</dep></entry>
diff --git a/Systems/fadec-cfm.xml b/Systems/fadec-cfm.xml
index 019fe028..8cd4e37e 100644
--- a/Systems/fadec-cfm.xml
+++ b/Systems/fadec-cfm.xml
@@ -199,7 +199,7 @@
 						<value>0.99</value>
 						<property>/engines/flx-throttle</property>
 					</product>
-					<entry><ind>0.00</ind><dep> 19.7</dep></entry>
+					<entry><ind>0.00</ind><dep> 18.9</dep></entry>
 					<entry><ind>1.00</ind><dep>103.8</dep></entry>
 				</table>
 			</expression>
@@ -208,7 +208,7 @@
 			<expression>
 				<table>
 					<property>/controls/engines/engine[0]/throttle-cmd-man</property>
-					<entry><ind>0.00</ind><dep> 19.7</dep></entry>
+					<entry><ind>0.00</ind><dep> 18.9</dep></entry>
 					<entry><ind>1.00</ind><dep>103.8</dep></entry>
 				</table>
 			</expression>
@@ -240,7 +240,7 @@
 						<value>0.99</value>
 						<property>/engines/flx-throttle</property>
 					</product>
-					<entry><ind>0.00</ind><dep> 19.7</dep></entry>
+					<entry><ind>0.00</ind><dep> 18.9</dep></entry>
 					<entry><ind>1.00</ind><dep>103.8</dep></entry>
 				</table>
 			</expression>
@@ -249,7 +249,7 @@
 			<expression>
 				<table>
 					<property>/controls/engines/engine[1]/throttle-cmd-man</property>
-					<entry><ind>0.00</ind><dep> 19.7</dep></entry>
+					<entry><ind>0.00</ind><dep> 18.9</dep></entry>
 					<entry><ind>1.00</ind><dep>103.8</dep></entry>
 				</table>
 			</expression>
@@ -1065,7 +1065,7 @@
 						<value>0.99</value>
 						<property>/controls/engines/throttle-scale</property>
 					</product>
-					<entry><ind>0.00</ind><dep> 19.7</dep></entry>
+					<entry><ind>0.00</ind><dep> 18.9</dep></entry>
 					<entry><ind>1.00</ind><dep>103.8</dep></entry>
 				</table>
 			</expression>
@@ -1085,7 +1085,7 @@
 						<value>0.95</value>
 						<property>/controls/engines/throttle-scale</property>
 					</product>
-					<entry><ind>0.00</ind><dep> 19.7</dep></entry>
+					<entry><ind>0.00</ind><dep> 18.9</dep></entry>
 					<entry><ind>1.00</ind><dep>103.8</dep></entry>
 				</table>
 			</expression>
@@ -1105,7 +1105,7 @@
 						<value>0.99</value>
 						<property>/engines/flx-throttle</property>
 					</product>
-					<entry><ind>0.00</ind><dep> 19.7</dep></entry>
+					<entry><ind>0.00</ind><dep> 18.9</dep></entry>
 					<entry><ind>1.00</ind><dep>103.8</dep></entry>
 				</table>
 			</expression>
@@ -1125,7 +1125,7 @@
 						<value>0.91</value>
 						<property>/controls/engines/throttle-scale</property>
 					</product>
-					<entry><ind>0.00</ind><dep> 19.7</dep></entry>
+					<entry><ind>0.00</ind><dep> 18.9</dep></entry>
 					<entry><ind>1.00</ind><dep>103.8</dep></entry>
 				</table>
 			</expression>
@@ -1258,10 +1258,10 @@
 						<property>/engines/engine[0]/state</property>
 						<value>3</value>
 					</equals>
-					<greater-than>
-						<property>/engines/engine[0]/n1-actual</property>
-						<value>19</value>
-					</greater-than>
+					<greater-than-equals>
+						<property>/engines/engine[1]/n1-actual</property>
+						<value>18.9</value>
+					</greater-than-equals>
 				</and>
 			</condition>
 		</enable>
@@ -1269,7 +1269,7 @@
 			<expression>
 				<table>
 					<property>/engines/engine[0]/n1-actual</property> 
-					<entry><ind> 19.7</ind><dep>434</dep></entry>
+					<entry><ind> 18.9</ind><dep>434</dep></entry>
 					<entry><ind>110.0</ind><dep>620</dep></entry>
 				</table>
 			</expression>
@@ -1288,10 +1288,10 @@
 						<property>/engines/engine[1]/state</property>
 						<value>3</value>
 					</equals>
-					<greater-than>
+					<greater-than-equals>
 						<property>/engines/engine[1]/n1-actual</property>
-						<value>19</value>
-					</greater-than>
+						<value>18.9</value>
+					</greater-than-equals>
 				</and>
 			</condition>
 		</enable>
@@ -1299,7 +1299,7 @@
 			<expression>
 				<table>
 					<property>/engines/engine[1]/n1-actual</property> 
-					<entry><ind> 19.7</ind><dep>434</dep></entry>
+					<entry><ind> 18.9</ind><dep>434</dep></entry>
 					<entry><ind>110.0</ind><dep>620</dep></entry>
 				</table>
 			</expression>