diff --git a/generic_data/Functions/functions.xml b/generic_data/Functions/functions.xml
index 8d6f3fe..be8c221 100644
--- a/generic_data/Functions/functions.xml
+++ b/generic_data/Functions/functions.xml
@@ -89,7 +89,7 @@
         <new_kernel>alfvenVelocity</new_kernel>
     </function>
 
-    <function name="fairfield70(,)" params="3" kind="physics">
+    <!--<function name="fairfield70(,)" params="3" kind="physics">
         <prompt>FAIRFIELD 1970 model of neutral sheet position Z = fairfield70(y_sm, z_sm, x_ss) 
                where y_sm and z_sm  are the solar magnetospheric coordinates of the spacecraft 
                and x_ss is geomagnetic latitude of the sun</prompt>
@@ -112,9 +112,9 @@
             R is the radial distance in RE and DTA is the dipole tilt angle 
         </info_brief>
         <new_kernel>lopez90</new_kernel>
-    </function>
+    </function>-->
 
-    <!-- <function name="gsegsm_()" argv="vector" kind="amda">
+  <!--<function name="gsegsm_()" argv="vector" kind="amda">
       <prompt/>
       <info_brief>GSE to GSM transformation</info_brief>
            <new_kernel>#framesTransformation</new_kernel>
--
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