diff --git a/tc/obsw_tc_service23.py b/tc/obsw_tc_service23.py
index 11b5d1c0abf0a07a885d5de6dbddbdae0465704b..e9718d873706c780d942aca1037a2bfe22de3159 100644
--- a/tc/obsw_tc_service23.py
+++ b/tc/obsw_tc_service23.py
@@ -184,9 +184,16 @@ class FileTransferHelper:
         self.tc_queue.appendleft(commands.pack_command_tuple())
 
 
+def generate_print_sd_card_packet(
+        ssc: int, object_id: bytearray = g.SD_CARD_HANDLER_ID) -> PusTelecommand:
+    app_data = bytearray(object_id)
+    return PusTelecommand(service=23, subservice=133, ssc=ssc, app_data=app_data)
+
+
 def generate_create_file_srv23_1_packet(
         filename: str, repository_path: str, ssc: int, max_size_of_app_data: int,
-        initial_data: bytearray = bytearray([]), object_id: bytearray = g.SD_CARD_HANDLER_ID):
+        initial_data: bytearray = bytearray([]),
+        object_id: bytearray = g.SD_CARD_HANDLER_ID) -> PusTelecommand:
     if len(initial_data) > calculate_allowed_file_data_size(
             max_size_of_app_data, filename, repository_path):
         LOGGER.error("generate_create_file_srv23_1_packet: Initial data too large!")
@@ -204,7 +211,7 @@ def generate_create_file_srv23_1_packet(
 
 
 def generate_rm_file_srv23_2_packet(filename: str, repository_path: str,
-                                    ssc: int, object_id=g.SD_CARD_HANDLER_ID):
+                                    ssc: int, object_id=g.SD_CARD_HANDLER_ID) -> PusTelecommand:
     """
     This function generates a packet which is used to delete a file on a
     file-system-capable on-board memory.
@@ -225,7 +232,7 @@ def generate_rm_file_srv23_2_packet(filename: str, repository_path: str,
 
 
 def generate_mkdir_srv23_9_packet(directory_name: str, ssc: int, repository_path: str = "/",
-                                  object_id: bytearray = g.SD_CARD_HANDLER_ID):
+                                  object_id: bytearray = g.SD_CARD_HANDLER_ID) -> PusTelecommand:
     """
     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
@@ -245,7 +252,7 @@ def generate_mkdir_srv23_9_packet(directory_name: str, ssc: int, repository_path
 
 
 def generate_rmdir_srv23_10_packet(directory_name: str, repository_path: str, ssc: int,
-                                   object_id: bytearray = g.SD_CARD_HANDLER_ID):
+                                   object_id: bytearray = g.SD_CARD_HANDLER_ID) -> PusTelecommand:
     """
     This function generates a packet which deletes the a directory at the specified repository path.
     @param directory_name: Name of the directory to delete
@@ -267,7 +274,7 @@ def generate_rmdir_srv23_10_packet(directory_name: str, repository_path: str, ss
 def generate_append_to_file_srv23_128_packet(
         filename: str, repository_path: str, packet_sequence_number: int,
         ssc: int, file_data: bytearray = bytearray([]),
-        object_id: bytearray = g.SD_CARD_HANDLER_ID):
+        object_id: bytearray = g.SD_CARD_HANDLER_ID) -> PusTelecommand:
     data_to_pack = bytearray(object_id)
     data_to_pack += bytearray(repository_path, 'utf-8')
     # Add string terminator of repository path
@@ -281,8 +288,9 @@ 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, ssc: int,
-                                        object_id: bytearray = g.SD_CARD_HANDLER_ID):
+def generate_read_file_srv23_129_packet(
+        repository_path: str, filename: str, ssc: int,
+        object_id: bytearray = g.SD_CARD_HANDLER_ID) -> PusTelecommand:
     """
     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.
@@ -305,35 +313,39 @@ def generate_read_file_srv23_129_packet(repository_path: str, filename: str, ssc
 def pack_service23_test_into(tc_queue: Deque) -> Deque:
     # sd_handler_id = g.SD_CARD_HANDLER_ID
     tc_queue.appendleft(("print", "Testing Service 23"))
-    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(("print", "Printing file structure."))
+    command = generate_print_sd_card_packet(ssc=2300)
     tc_queue.appendleft(command.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_read_file_srv23_129_packet("test/subdir", "test.bin", ssc=2303)
     # tc_queue.appendleft(command.pack_command_tuple())
-    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", "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