diff --git a/glamod_marine_processing/obs_suite/scripts/level3.py b/glamod_marine_processing/obs_suite/scripts/level3.py
index 1473760e..25133b04 100755
--- a/glamod_marine_processing/obs_suite/scripts/level3.py
+++ b/glamod_marine_processing/obs_suite/scripts/level3.py
@@ -30,11 +30,10 @@
 
 import datetime
 import logging
-import os
 import sys
 from importlib import reload
 
-from _utilities import FFS, level3_columns, read_cdm_tables, script_setup, table_to_csv
+from _utilities import level3_columns, read_cdm_tables, script_setup, table_to_csv
 
 reload(logging)  # This is to override potential previous config of logging