diff --git a/phases/linear-static-3d-euler-beam/index.json b/phases/linear-static-3d-euler-beam/index.json
index 262d16d..8dc671f 100644
--- a/phases/linear-static-3d-euler-beam/index.json
+++ b/phases/linear-static-3d-euler-beam/index.json
@@ -221,7 +221,10 @@
     {
       "step": 27,
       "name": "physics-sanity",
-      "status": "pending"
+      "status": "completed",
+      "started_at": "2026-08-09T23:45:30+0900",
+      "summary": "Reference gate와 exact B33 HDF5/JSON/reference identity를 확인하고 force/origin-moment equilibrium, constrained reaction와 normalized free residual, displacement/rotation sign, zero symmetry, endpoint/section balance, local/global 및 S11 sanity, finite/energy/mode와 analytical coverage를 검토해 pass-for-release-agent로 인계함",
+      "completed_at": "2026-08-09T23:59:16+0900"
     },
     {
       "step": 28,