diff --git a/BURNIN.md b/BURNIN.md
index 9f445e7..0cf27b9 100644
--- a/BURNIN.md
+++ b/BURNIN.md
@@ -2607,3 +2607,87 @@ inside `lease_expired`.
 
 Runtime proof still owed: force a request the agent will not answer, and read
 the release event rather than the worker state file.
+
+## Run 17, 2026-08-29: F62 proven live on `c587f2c`
+
+Task `06G4V20T528ZTER7KZBVGNAYXC`, a five-phase plan
+(`3b16b77054b9`) on the deployed pair, coordinator and worker both at
+`c587f2c`.
+
+### The trigger was production, not a rig
+
+The rig planned for this run was a state-file lever. It was never needed. The
+`implement -> review` phase change asked for a handoff through the ordinary
+path (`rotateForPhase`, reason `phase_changed`), and the agent ignored it
+because this task's brief instructed it to from phase 4 onward. Nothing touched
+tmux, no process was stopped, and the pane stayed open for the whole wait.
+
+```text
+12:48:09  implement -> review, handoff requested, reason=phase_changed
+12:50:09  TaskLeaseRenewed      agent idle, pane capture unchanged
+12:52:15  pane input confirmed  the single resend, 4m06s after the request
+12:52:39  TaskLeaseRenewed
+12:55:14  TaskLeaseRenewed
+12:57:49  TaskLeaseRenewed
+12:58:14  TaskReleased  reason=handoff_unanswered  failure_class=handoff_unanswered
+          last_error="handoff requested (phase_changed) and unanswered for 10m5s"
+12:59:14  TaskLeased    successor leases normally
+13:02:20  TaskSubmitted
+```
+
+Every assertion the operator set for this rung held:
+
+- the release does not look like an ordinary `lease_expired`: it carries
+  `reason=handoff_unanswered` and `lifecycle_phase=handoff_unanswered`;
+- the idle-renewal rule did not kill the wait: four renewals on an idle pane
+  with no capture movement, each one the gate would have refused before this
+  commit;
+- the resend preserved the reason the request was first made with;
+- exactly one resend, not one per tick;
+- the timeout produced the class at `10m5s`, one tick past the bound;
+- nothing stale was left: `releases: {}`, no session, no lease, and zero tmux
+  panes matching the id;
+- the next attempt leased 60s later and reached `TaskSubmitted`.
+
+The debt projection classified it with no new code beyond the class mapping:
+
+```text
+v1:operational:handoff_unanswered:workpc-claude:lease   operational  important
+  "handoff requested (phase_changed) and unanswered for 10m5s"
+```
+
+**Inference, not observation.** The resent prompt's text was not captured. That
+it carried the `phase_changed` wording rests on the code path and the timing,
+not on a pane capture. A future rig should publish a capture across the resend.
+
+### The implement-successor rung missed again, and why
+
+A five-phase plan does not lengthen the implement phase. This one ran 12:45:18
+to 12:48:09, about 2m50s, with verifications 20 to 40 seconds apart:
+
+```text
+12:45:47 phase-1   12:46:07 phase-2   12:46:32 phase-3
+12:47:12 phase-4   12:47:52 phase-5   12:48:09 implement -> review
+```
+
+The brief's explicit one-phase-at-a-time requirement was followed, and it
+still took under three minutes. Phase count is not the lever; volume of
+mechanical work is.
+
+`awaiting_manual_verification` does not hold the phase open either. All five
+phases carried that status and the agent moved on regardless.
+
+### The state-file lever cannot be driven with `restart` alone
+
+The documented procedure is stop, edit, start. The unattended sudo rule grants
+`install` and `systemctl restart orchestra-worker`, with no `stop` or `start`.
+With `restart` only, the running worker's five-second tick save landed between
+the edit and the restart, and the edit was gone. Widening the sudoers line is
+the fix.
+
+### One cosmetic note
+
+`Session.HandoffRequestedAt` serializes as `0001-01-01T00:00:00Z` when unset,
+because `omitempty` does not omit a zero `time.Time`. The worker parses it back
+to a zero value and `watchHandoff` starts the clock, so behaviour is correct.
+It is the same marshalling trap the operator console hit.