diff --git a/tc/obsw_tc_service23.py b/tc/obsw_tc_service23.py
index 172b1dc4043df90cba659ca70905ed6aae42efdf..e4a23407b8f6df9674e1ab1bf1cab8f9646d9999 100644
--- a/tc/obsw_tc_service23.py
+++ b/tc/obsw_tc_service23.py
@@ -224,12 +224,13 @@ def generate_rm_file_srv23_2_packet(filename: str, repository_path: str,
     return PusTelecommand(service=23, subservice=2, ssc=ssc, app_data=data_to_pack)
 
 
-def generate_mkdir_srv23_9_packet(directory_name: str, repository_path: str = "",
-                                  object_id=bytearray([])):
+def generate_mkdir_srv23_9_packet(directory_name: str, ssc: int, repository_path: str = "/",
+                                  object_id=g.SD_CARD_HANDLER_ID):
     """
     This function generates a packet which is used to create directories on file systems.
     @param directory_name: The path where the directory shall be created
     @param repository_path: The name of the directory to create
+    @param ssc: source sequence count
     @param object_id: The object ID of the memory handler which manages the file system
     :return
     """
@@ -240,15 +241,16 @@ def generate_mkdir_srv23_9_packet(directory_name: str, repository_path: str = ""
     data_to_pack += bytearray(directory_name, 'utf-8')
     # Add string terminator to directory name
     data_to_pack.append(0)
-    return PusTelecommand(service=23, subservice=9, ssc=21, app_data=data_to_pack)
+    return PusTelecommand(service=23, subservice=9, ssc=ssc, app_data=data_to_pack)
 
 
-def generate_rmdir_srv23_10_packet(directory_name: str, repository_path: str = "",
-                                   object_id=bytearray([])):
+def generate_rmdir_srv23_10_packet(directory_name: str, repository_path: str, ssc: int,
+                                   object_id=g.SD_CARD_HANDLER_ID):
     """
     This function generates a packet which deletes the a directory at the specified repository path.
     @param directory_name: Name of the directory to delete
     @param repository_path: Path to directory dirname
+    @param ssc: source sequence count
     @param object_id: object ID of the memory handler (e.g. SD Card Handler)
     @return The application data field of the (23,10) PUS packet
     """
@@ -259,7 +261,7 @@ def generate_rmdir_srv23_10_packet(directory_name: str, repository_path: str = "
     data_to_pack += bytearray(directory_name, 'utf-8')
     # Add string terminator of directory name
     data_to_pack.append(0)
-    return PusTelecommand(service=23, subservice=10, ssc=21, app_data=data_to_pack)
+    return PusTelecommand(service=23, subservice=10, ssc=ssc, app_data=data_to_pack)
 
 
 def generate_append_to_file_srv23_128_packet(
@@ -276,13 +278,14 @@ def generate_append_to_file_srv23_128_packet(
     return PusTelecommand(service=23, subservice=128, ssc=ssc, app_data=data_to_pack)
 
 
-def generate_read_file_srv23_129_packet(repository_path: str, filename: str,
-                                        object_id: bytearray = bytearray([])):
+def generate_read_file_srv23_129_packet(repository_path: str, filename: str, ssc: int,
+                                        object_id: bytearray = g.SD_CARD_HANDLER_ID):
     """
     This function generates the application data field for a PUS packet with service
     23 and subservie 129. Subservice 129 is a custom service to request the data of a file.
     @param repository_path: The path of the target file
     @param filename: Name of file from which the content shall be read
+    @param ssc: source sequence count
     @param object_id: object ID of the memory handler (e.g. SD Card Handler)
     @return: The application data field of the (23,129) PUS packet
     """
@@ -293,36 +296,41 @@ def generate_read_file_srv23_129_packet(repository_path: str, filename: str,
     data_to_pack += bytearray(filename, 'utf-8')
     # Add string terminator of filename
     data_to_pack.append(0)
-    return PusTelecommand(service=23, subservice=129, ssc=21, app_data=data_to_pack)
+    return PusTelecommand(service=23, subservice=129, ssc=ssc, app_data=data_to_pack)
 
 
 def pack_service23_test_into(tc_queue: Deque) -> Deque:
-    sd_handler_id = g.SD_CARD_HANDLER_ID
+    # sd_handler_id = g.SD_CARD_HANDLER_ID
     tc_queue.appendleft(("print", "Testing Service 23"))
-    # tc_queue.append(("print", "Create directory 'test'"))
-    # command = generate_service23_subservice9_packet(directory_name="test", object_id=sd_handler_id)
-    # tc_queue.appendleft(command.pack_command_tuple())
-    # tc_queue.append(("print", "Create subdirectory 'subdir' in 'test'"))
-    # command = generate_service23_subservice9_packet(repository_path="test", directory_name="subdir",
-    #                                                 object_id=sd_handler_id)
-    # tc_queue.appendleft(command.pack_command_tuple())
-    # tc_queue.appendleft(("print", "Create and write in test.bin"))
-    # command = generate_service23_subservice128_packet(
-    #     "test/subdir", "test.bin", sd_handler_id, file_data=bytearray([0x01, 0x00, 0x01, 0x00]))
-    # tc_queue.appendleft(command[0].pack_command_tuple())
+    tc_queue.append(("print", "Create directory 'test'"))
+    command = generate_mkdir_srv23_9_packet(directory_name="test", repository_path="/", ssc=2300)
+    tc_queue.appendleft(command.pack_command_tuple())
+    tc_queue.append(("print", "Create subdirectory 'subdir' in 'test'"))
+    command = generate_mkdir_srv23_9_packet(repository_path="test", ssc=2301,
+                                             directory_name="subdir")
+    tc_queue.appendleft(command.pack_command_tuple())
+
+    tc_queue.appendleft(("print", "Create test.bin"))
+    command = generate_create_file_srv23_1_packet(
+         filename="test.bin", repository_path="test/subdir", ssc=2302,
+         initial_data=bytearray([0x01, 0x00, 0x01, 0x00]), max_size_of_app_data=1024)
+    tc_queue.appendleft(command.pack_command_tuple())
     # tc_queue.appendleft(("print", "Read data of test.bin"))
     # command = generate_service23_subservice129_packet("test/subdir", "test.bin", sd_handler_id)
     # tc_queue.appendleft(command.pack_command_tuple())
-    # tc_queue.appendleft(("print", "Delete 'test.bin'"))
-    # command = generate_service23_subservice2_packet("test.bin", "test/subdir", object_id=sd_handler_id)
-    # tc_queue.appendleft(command.pack_command_tuple())
-    # tc_queue.appendleft(("print", "Delete 'subdir' directory"))
-    # command = generateService23Subservice10Packet("subdir", "test", object_id=sd_handler_id)
-    # tc_queue.appendleft(command.pack_command_tuple())
-    # tc_queue.appendleft(("print", "Delete 'test' directory"))
-    # command = generateService23Subservice10Packet(directory_name="test", object_id=sd_handler_id)
-    # tc_queue.appendleft(command.pack_command_tuple())
-    tc_queue.appendleft(("print", "\r"))
+    tc_queue.appendleft(("print", "Delete 'test.bin'"))
+    command = generate_rm_file_srv23_2_packet(filename="test.bin", repository_path="test/subdir",
+                                              ssc=2304)
+    tc_queue.appendleft(command.pack_command_tuple())
+    tc_queue.appendleft(("print", "Delete 'subdir' directory"))
+    command = generate_rmdir_srv23_10_packet(directory_name="subdir", repository_path="test",
+                                             ssc=2305)
+    tc_queue.appendleft(command.pack_command_tuple())
+    tc_queue.appendleft(("print", "Delete 'test' directory"))
+    command = generate_rmdir_srv23_10_packet(directory_name="test", repository_path="/",
+                                             ssc=2306)
+    tc_queue.appendleft(command.pack_command_tuple())
+    # tc_queue.appendleft(("print", "\r"))
     return tc_queue