diff --git a/sorc/chgres_cube.fd/atmosphere.F90 b/sorc/chgres_cube.fd/atmosphere.F90
index c13e709b6..cccee336f 100644
--- a/sorc/chgres_cube.fd/atmosphere.F90
+++ b/sorc/chgres_cube.fd/atmosphere.F90
@@ -1260,7 +1260,7 @@ subroutine read_vcoord_info
 
  print*
  print*,"OPEN VERTICAL COORD FILE: ", trim(vcoord_file_target_grid)
- open(14, file=trim(vcoord_file_target_grid), form='formatted', iostat=istat)
+ open(14, file=trim(vcoord_file_target_grid), form='formatted', iostat=istat, action='read')
  if (istat /= 0) then
    call error_handler("OPENING VERTICAL COORD FILE", istat)
  endif
diff --git a/util/gdas_init/driver.jet.sh b/util/gdas_init/driver.jet.sh
index 3df8cd64c..cc123c154 100755
--- a/util/gdas_init/driver.jet.sh
+++ b/util/gdas_init/driver.jet.sh
@@ -20,6 +20,9 @@ PROJECT_CODE=hfv3gfs
 QUEUE=batch
 PARTITION=xjet
 
+# Needed for NDATE utility
+module load prod_util/1.2.2
+
 source config
 
 if [ $EXTRACT_DATA == yes ]; then