diff --git a/public/js/api/factory/studstatus/leitung.js b/public/js/api/factory/studstatus/leitung.js
index cc6b87d25..7f6bc9f54 100644
--- a/public/js/api/factory/studstatus/leitung.js
+++ b/public/js/api/factory/studstatus/leitung.js
@@ -34,7 +34,7 @@ export default {
 			url: '/api/frontend/v1/studstatus/leitung/getHistory/' + antrag_id
 		};
 	},
-	getPrestudents(query, signal) {
+	getPrestudents(query) {
 		return {
 			method: 'post',
 			url: '/api/frontend/v1/studstatus/leitung/getPrestudents',
diff --git a/public/js/components/Studierendenantrag/Leitung/Actions/New.js b/public/js/components/Studierendenantrag/Leitung/Actions/New.js
index a6cd69219..f78455baa 100644
--- a/public/js/components/Studierendenantrag/Leitung/Actions/New.js
+++ b/public/js/components/Studierendenantrag/Leitung/Actions/New.js
@@ -37,16 +37,16 @@ export default {
 			});
 		},
 		loadData(evt) {
-                        if( evt.query.length < 2 )
-                        {
-                            return false;
-                        }
+			if (evt.query.length < 2)
+			{
+				return false;
+			}
+
+			if (this.abortController)
+			{
+				this.abortController.abort();
+			}
 
-			if (this.abortController instanceof AbortController
-                            && this.abortController.signal.aborted === false)
-                        {
-                            this.abortController.abort();
-                        }
 			this.abortController = new AbortController();
 
 			this.$api
@@ -56,16 +56,8 @@ export default {
 				})
 				.then(result => {
 					this.data = result.data;
-                                        this.abortController = null;
 				})
-				.catch(error => {
-                                    if (this.abortController instanceof AbortController 
-                                        && this.abortController.signal.aborted === false)
-                                    {
-                                        this.abortController.abort();
-                                    }
-                                    this.$fhcAlert.handleSystemError(error);
-                                });
+				.catch(this.$fhcAlert.handleSystemError);
 		}
 	},
 	template: `
diff --git a/system/dbupdate_3.4.php b/system/dbupdate_3.4.php
index 4b52b04c4..7b298df36 100644
--- a/system/dbupdate_3.4.php
+++ b/system/dbupdate_3.4.php
@@ -79,6 +79,7 @@ require_once('dbupdate_3.4/61730_Dashboard_Anpassungen.php');
 require_once('dbupdate_3.4/40128_search.php');
 require_once('dbupdate_3.4/60882_lehrfaecherverteilung_favorites.php');
 require_once('dbupdate_3.4/66982_berufsschule.php');
+require_once('dbupdate_3.4/67490_studstatus_suche_abort_controller_haengt.php');
 
 // *** Pruefung und hinzufuegen der neuen Attribute und Tabellen
 echo '<H2>Pruefe Tabellen und Attribute!</H2>';
diff --git a/system/dbupdate_3.4/67490_studstatus_suche_abort_controller_haengt.php b/system/dbupdate_3.4/67490_studstatus_suche_abort_controller_haengt.php
new file mode 100644
index 000000000..4c348a7ab
--- /dev/null
+++ b/system/dbupdate_3.4/67490_studstatus_suche_abort_controller_haengt.php
@@ -0,0 +1,16 @@
+<?php
+if (! defined('DB_NAME')) exit('No direct script access allowed');
+
+// Add index to campus.tbl_studierendenantrag_status.studierendenantrag_id
+if ($result = $db->db_query("SELECT * FROM pg_class WHERE relname='idx_tbl_studierendenantrag_status_studierendenantrag_id'"))
+{
+	if ($db->db_num_rows($result) == 0)
+	{
+		$qry = "CREATE INDEX idx_tbl_studierendenantrag_status_studierendenantrag_id ON campus.tbl_studierendenantrag_status USING btree (studierendenantrag_id)";
+
+		if (!$db->db_query($qry))
+			echo '<strong>Indizes: ' . $db->db_last_error() . '</strong><br>';
+		else
+			echo 'Index fuer campus.tbl_studierendenantrag_status.studierendenantrag_id hinzugefuegt';
+	}
+}