diff --git a/ecs/jskult-webapp/src/model/internal/master_mainte_csv.py b/ecs/jskult-webapp/src/model/internal/master_mainte_csv.py
index fd77af95..c093fe0c 100644
--- a/ecs/jskult-webapp/src/model/internal/master_mainte_csv.py
+++ b/ecs/jskult-webapp/src/model/internal/master_mainte_csv.py
@@ -203,15 +203,15 @@ class MasterMainteNewInstEmpCSVItem(MasterMainteCSVItem):
             bu_master_repository,
             emp_chginst_repository
         )
-        self.inst_cd = self.csv_row[constants.CSV_NEW_INST_CD_COL_NO]  # a
-        self.inst_name = self.csv_row[constants.CSV_NEW_INST_NAME_COL_NO]  # b
-        self.ta_cd = self.csv_row[constants.CSV_NEW_TA_CD_COL_NO]  # c
-        self.emp_cd = self.csv_row[constants.CSV_NEW_EMP_CD_COL_NO]  # d
-        self.emp_name_family = self.csv_row[constants.CSV_NEW_EMP_NAME_FAMILY_COL_NO]  # e
-        self.emp_name_first = self.csv_row[constants.CSV_NEW_EMP_NAME_FIRST_COL_NO]  # f
-        self.bu_cd = self.csv_row[constants.CSV_NEW_BU_CD_COL_NO]  # g
-        self.start_date = self.csv_row[constants.CSV_NEW_START_DATE]  # h
-        self.end_date = self.csv_row[constants.CSV_NEW_END_DATE]  # i
+        self.inst_cd = self.csv_row[constants.CSV_NEW_INST_CD_COL_NO]
+        self.inst_name = self.csv_row[constants.CSV_NEW_INST_NAME_COL_NO]
+        self.ta_cd = self.csv_row[constants.CSV_NEW_TA_CD_COL_NO]
+        self.emp_cd = self.csv_row[constants.CSV_NEW_EMP_CD_COL_NO]
+        self.emp_name_family = self.csv_row[constants.CSV_NEW_EMP_NAME_FAMILY_COL_NO]
+        self.emp_name_first = self.csv_row[constants.CSV_NEW_EMP_NAME_FIRST_COL_NO]
+        self.bu_cd = self.csv_row[constants.CSV_NEW_BU_CD_COL_NO]
+        self.start_date = self.csv_row[constants.CSV_NEW_START_DATE]
+        self.end_date = self.csv_row[constants.CSV_NEW_END_DATE]
 
     def csv_row_data(self) -> dict:
         return {constants.NEW_INST_EMP_CSV_MAP[i]: self.csv_row[i] for i in range(len(self.csv_row))}
@@ -442,7 +442,7 @@ class MasterMainteChangeInstEmpCSVItem(MasterMainteCSVItem):
                 end_date,
                 constants.CHANGE_INST_EMP_MAP[constants.CSV_CHANGE_INST_EMP_START_DATE_COL_NO],
                 end_date_col_name)
-            if len(error_list) > 0 or self.start_date is None or self.end_date is None:
+            if len(error_list) > 0 or start_date is None or end_date is None:
                 return error_list
 
             if start_date_time > end_date_time: