diff --git a/phases/linear-static-3d-euler-beam/index.json b/phases/linear-static-3d-euler-beam/index.json
index 4798dc1..d85eb9d 100644
--- a/phases/linear-static-3d-euler-beam/index.json
+++ b/phases/linear-static-3d-euler-beam/index.json
@@ -141,7 +141,10 @@
     {
       "step": 17,
       "name": "parallel-for-tbb",
-      "status": "pending"
+      "status": "completed",
+      "started_at": "2026-08-09T18:41:51+0900",
+      "completed_at": "2026-08-09T18:52:20+0900",
+      "summary": "Backend-free ParallelFor/Serial/Tbb adapter가 caller-owned index-addressed slot에서 zero/one/many exact-once와 stable output을 보장하고 oneTBB cancellation의 body exception을 그대로 전파하며 global thread/oversubscription 설정 없이 targeted 3/3 및 전체 42/42를 검증함"
     },
     {
       "step": 18,