Index: firmware/App/Services/AlarmMgmt.c
===================================================================
diff -u -re8edb83fcba5c355198efc30944d51c54814bdbe -re316cf48cb5fd96494e970590f68ca503a93a71e
--- firmware/App/Services/AlarmMgmt.c	(.../AlarmMgmt.c)	(revision e8edb83fcba5c355198efc30944d51c54814bdbe)
+++ firmware/App/Services/AlarmMgmt.c	(.../AlarmMgmt.c)	(revision e316cf48cb5fd96494e970590f68ca503a93a71e)
@@ -408,7 +408,12 @@
                         // Send information for UI to log to treatment log
                         if ( ( TRUE == ALARM_TABLE[ alarm ].alarmTreatmentLog ) && ( MODE_TREA == getCurrentOperationMode() ) )
                         {
-                            sendTreatmentLogAlarmEventData( alarm, alarmData1, alarmData2 );
+                            F32 data1;
+                            F32 data2;
+
+                            memcpy( &data1, &alarmData1.data, sizeof( F32 ) );
+                            memcpy( &data2, &alarmData2.data, sizeof( F32 ) );
+                            sendTreatmentLogAlarmEventData( alarm, data1, data2 );
                         }
                     }
                     activateAlarm( alarm );
Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -rfd4a30ee0f905408c7f323995492763cc0765407 -re316cf48cb5fd96494e970590f68ca503a93a71e
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision fd4a30ee0f905408c7f323995492763cc0765407)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision e316cf48cb5fd96494e970590f68ca503a93a71e)
@@ -1090,22 +1090,22 @@
  * @param almData1 data associates with the alarm
  * @return TRUE if msg successfully queued for transmit, FALSE if not
  *************************************************************************/
-BOOL sendTreatmentLogAlarmEventData( ALARM_ID_T alarmID, ALARM_DATA_T almData1, ALARM_DATA_T almData2 )
+BOOL sendTreatmentLogAlarmEventData( ALARM_ID_T alarmID, F32 alarmData1, F32 alarmData2 )
 {
     MESSAGE_T msg;
     U08 *payloadPtr = msg.payload;
-    U32 id = (U32)alarmID;
+    U32 id          = (U32)alarmID;
 
     // Create a message record
     blankMessage( &msg );
-    msg.hdr.msgID = MSG_ID_HD_TREATMENT_LOG_ALARM_EVENT;
+    msg.hdr.msgID      = MSG_ID_HD_TREATMENT_LOG_ALARM_EVENT;
     msg.hdr.payloadLen = sizeof( U32 ) + 2 * sizeof( F32 );
 
     memcpy( payloadPtr, &id, sizeof( U32 ) );
     payloadPtr += sizeof( U32 );
-    memcpy( payloadPtr, &almData1.data, sizeof( F32 ) );
+    memcpy( payloadPtr, &alarmData1, sizeof( F32 ) );
     payloadPtr += sizeof( F32 );
-    memcpy( payloadPtr, &almData2.data, sizeof( F32 ) );
+    memcpy( payloadPtr, &alarmData2, sizeof( F32 ) );
 
     // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
     return serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_2_UI, ACK_REQUIRED );
@@ -3322,8 +3322,14 @@
  *************************************************************************/
 void handleHDSerialNumberRequest( void )
 {
+    typedef struct
+    {
+        U08 topLevelSN[ MAX_TOP_LEVEL_SN_CHARS ];
+    } LOCAL_TOP_SN_T;
     MESSAGE_T msg;
     HD_SYSTEM_RECORD_T system;
+    U08 i;
+    LOCAL_TOP_SN_T localTopLevelSN;
 
     // Get the system's record. There are no arrays of system to check and also, raise no alarm since the system record
     // has been already checked in POST
@@ -3338,8 +3344,15 @@
     // Add 1 byte for null terminator
     msg.hdr.payloadLen = MAX_TOP_LEVEL_SN_CHARS + 1;
 
+    for ( i = 0; i < MAX_TOP_LEVEL_SN_CHARS; i++ )
+    {
+        // NOTE: A local variable was created to avoid system.topLevelSN in the messages list
+        // NOTE: For loop was used instead of memory copy to ensure it is not parsed in the messages list script
+        localTopLevelSN.topLevelSN[ i ] = system.topLevelSN[ i ];
+    }
+
     // Fill message payload
-    memcpy( payloadPtr, &system.topLevelSN, sizeof( U08 ) * MAX_TOP_LEVEL_SN_CHARS );
+    memcpy( payloadPtr, &localTopLevelSN, sizeof( LOCAL_TOP_SN_T ) );
     payloadPtr += MAX_TOP_LEVEL_SN_CHARS;
     *payloadPtr = 0;
 
Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -rfd4a30ee0f905408c7f323995492763cc0765407 -re316cf48cb5fd96494e970590f68ca503a93a71e
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision fd4a30ee0f905408c7f323995492763cc0765407)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision e316cf48cb5fd96494e970590f68ca503a93a71e)
@@ -420,7 +420,7 @@
 BOOL sendActiveAlarmsList( ACTIVE_ALARM_LIST_RESPONSE_PAYLOAD_T alarmListPayload );
 
 // MSG_ID_HD_TREATMENT_LOG_ALARM_EVENT
-BOOL sendTreatmentLogAlarmEventData( ALARM_ID_T alarmID, ALARM_DATA_T almData1, ALARM_DATA_T almData2 );
+BOOL sendTreatmentLogAlarmEventData( ALARM_ID_T alarmID, F32 alarmData1, F32 alarmData2 );
 
 // MSG_ID_HD_TREATMENT_LOG_EVENT
 BOOL sendTreatmentLogEventData( TX_EVENT_ID_T event, F32 oldValue, F32 newValue );