diff --git a/tests/integration/observability/test_arize_otel_v2_openinference_chaos.py b/tests/integration/observability/test_arize_otel_v2_openinference_chaos.py
index 79b0d9084aa..0095080d944 100644
--- a/tests/integration/observability/test_arize_otel_v2_openinference_chaos.py
+++ b/tests/integration/observability/test_arize_otel_v2_openinference_chaos.py
@@ -1,12 +1,13 @@
 from __future__ import annotations
 
+import socket
 import threading
 import uuid
 from concurrent.futures import ThreadPoolExecutor
 from contextlib import ExitStack
 from pathlib import Path
+from queue import SimpleQueue
 from typing import Final
-from urllib.parse import urlsplit
 
 import httpx
 import pytest
@@ -44,7 +45,7 @@ from _openinference_support import (
 )
 from integration._support.client import Gateway, eventually
 from integration._support.process import graceful_stop_seconds
-from integration._support.wire import Reply, Request, wire_server
+from integration._support.wire import Reply, Request, Wire, wire_server
 
 
 def _call(
@@ -249,11 +250,12 @@ def test_arize_otel_v2_f1_sink_outage_and_recovery(gateway: Gateway, tmp_path: P
             _assert_response(response, marker, surface, stream, model_name)
 
     with ExitStack() as servers:
-        initial_stack: Final = servers.enter_context(ExitStack())
-        stopped_destination: Final = initial_stack.enter_context(wire_server(_owned_sink_handler(sink)))
-        sink_port: Final = urlsplit(stopped_destination.url).port
-        assert sink_port is not None, stopped_destination.url
-        initial_stack.close()
+        outage_socket: Final = servers.enter_context(socket.socket(socket.AF_INET, socket.SOCK_STREAM))
+        outage_socket.bind(("127.0.0.1", 0))  # test-quality-ok: socket stays bound throughout the outage
+        sink_port: Final = outage_socket.getsockname()[1]
+        stopped_destination: Final = Wire(
+            f"http://127.0.0.1:{sink_port}", SimpleQueue(), SimpleQueue(), SimpleQueue(), SimpleQueue()
+        )
         with _rig(
             gateway,
             tmp_path,
@@ -272,6 +274,7 @@ def test_arize_otel_v2_f1_sink_outage_and_recovery(gateway: Gateway, tmp_path: P
                 with httpx.Client(trust_env=False) as client, pytest.raises(httpx.ConnectError):
                     client.get(stopped_destination.url + "/health", timeout=2)
                 recovered_stack: Final = servers.enter_context(ExitStack())
+                outage_socket.close()
                 recovered_destination: Final = recovered_stack.enter_context(
                     wire_server(_owned_sink_handler(sink), port=sink_port)
                 )