pcu: Fix typo in variable name

Change-Id: I8233b0b7f425fba4cbea9859a13b6e612cccede2
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index 187e2f1..d4fe004 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -5519,8 +5519,8 @@
 	BTS.send(si1_data_ind);
 	var template PCUIF_Message si3_data_ind := ts_PCUIF_DATA_IND(0, 0, 0, 0, PCU_IF_SAPI_BCCH, '4906'O & si3_default, 0, 0, 0, 0, 32767);
 	BTS.send(si3_data_ind);
-	var template PCUIF_Message si16_data_ind := ts_PCUIF_DATA_IND(0, 0, 0, 0, PCU_IF_SAPI_BCCH, '0106'O & si13_default, 0, 0, 0, 0, 32767);
-	BTS.send(si16_data_ind);
+	var template PCUIF_Message si13_data_ind := ts_PCUIF_DATA_IND(0, 0, 0, 0, PCU_IF_SAPI_BCCH, '0106'O & si13_default, 0, 0, 0, 0, 32767);
+	BTS.send(si13_data_ind);
 	f_sleep(1.0);
 
 	var RIM_Routing_Address dst_addr;