diff --git a/Systems/fadec-iae.xml b/Systems/fadec-iae.xml
index b7157b26..deda5102 100644
--- a/Systems/fadec-iae.xml
+++ b/Systems/fadec-iae.xml
@@ -188,7 +188,7 @@
 			<expression>
 				<table>
 					<property>/position/altitude-ft</property> 
-					<entry><ind>    0</ind><dep>0.577</dep></entry>
+					<entry><ind>    0</ind><dep>0.576</dep></entry>
 					<entry><ind>42000</ind><dep>1.076</dep></entry>
 				</table>
 			</expression>
@@ -204,7 +204,7 @@
 			<expression>
 				<table>
 					<property>/position/altitude-ft</property> 
-					<entry><ind>    0</ind><dep>0.986</dep></entry>
+					<entry><ind>    0</ind><dep>0.988</dep></entry>
 					<entry><ind>42000</ind><dep>0.708</dep></entry>
 				</table>
 			</expression>
diff --git a/revision.txt b/revision.txt
index 50b58d88..2fc5a282 100644
--- a/revision.txt
+++ b/revision.txt
@@ -1 +1 @@
-4037
\ No newline at end of file
+4038
\ No newline at end of file