Fan #1 Failure: timed gate → P/T picks the true swap → verify → recover
Scenario 24 · knowledge graph + cardinality fixed · P/T recovery · 60 s timed gate · procedure execute · 3600 s run
+4 s · diagnosis
KG returns candidates (symptom overlap). Scores become Pi; catalog ETRs become Ti
+4 – 64 s · timed gate
Hold first pick for 60 s after first nonzero evaluation so early score mass can settle
+64 s · first pick
P/T ranks Fan #1 Failure first (P=0.37, T=20 min) — true fault, first try
+64 – 1264 s · execute
Auxiliary fan swap-out runs; experimenter accepts the required procedure
+1264 – 1324 s · verify / recover
1 min window: alarms drop → success (TTR ≈ 21 min from injection)