diff --git a/schema/cpacs_schema.xsd b/schema/cpacs_schema.xsd
index e850738..3b2dd69 100644
--- a/schema/cpacs_schema.xsd
+++ b/schema/cpacs_schema.xsd
@@ -35361,10 +35361,11 @@ The fuel tank volume type should also be used for the wing fuel tank</xsd:docume
                             <xsd:complexType>
                             <xsd:simpleContent>
                                 <xsd:restriction base="stringBaseType">
-                                    <xsd:enumeration value="massFlow"/>
-                                    <xsd:enumeration value="heatFlow"/>
-                                    <xsd:enumeration value="electricPower"/>
-                                    <xsd:enumeration value="mechanicalPower"/>
+                                    <xsd:enumeration value="electric"/>
+                                    <xsd:enumeration value="pneumatic"/>
+                                    <xsd:enumeration value="hydraulic"/>
+                                    <xsd:enumeration value="mechanical"/>
+                                    <xsd:enumeration value="data"/>
                                 </xsd:restriction>
                             </xsd:simpleContent>
                         </xsd:complexType>