Alder Bank Alpha — Maintenance Backlog Decision Workbench

Growth: '+N+' orders / '+H+' h, up every snapshot; past-due share 55%.
Assurance governance gap: '+sceOverdueNoLafd.length+' SCE orders are past planned due with no recorded LAFD or basis (G1). HV-221 is past its planned due date, but its LAFD (7 Oct) is still open.
Live barrier impairments: FW-P-201B failed, FW-P-201A unconfirmed, GD-412 failed, ESDV-610 test incomplete. Module 4 is exposed on several fronts (tab 4).
Record quality: likely duplicates (G3, G4), a repeat defect recorded three times (G2), work claimed complete (G5), a superseded tag (G6), an unsupported deferral (G7), stale P1 labels (G8) and 44 h of conditional scope (G9).
Readiness: '+WO.filter(w=>w.rdy==="unverified").length+' orders are "unverified"; draft plan entries exist for blocked work (WO-1006, WO-1005, WO-1027).
Clustering: FO-120 ('+WO.filter(w=>w.equipment_id==="FO-120").length+'), HV-330, P-115, PL-902 and LC-11 hold many small orders on equipment with standby, parallel or low consequence. These suit batch review rather than individual repair.

Monday maintenance meeting · 5 Oct 2026 08:30 · Source snapshot 5 Oct 2026 07:00 BST · Public synthetic source pack v1.2

SYNTHETIC DEMO — NOT FOR OPERATIONAL USE. Fictional installation, invented records and rules. This workbench only recommends. It cannot approve continued operation, deviations, permits, isolations, fitness for service or the schedule. The Production Coordinator owns schedule approval; the OIM and the relevant TA make operating and technical decisions. It does not predict failures.

Simulate: (a) 9 Oct supply vessel cancelled (b) One instrument tech unavailable 7 Oct (−4 h I) Base case: no scenario applied

1 Backlog health ~10 min2 Findings & dispositions ~10 min3 Escalations & barriers ~10 min4 Schedule 5–11 Oct ~12 min5 Outlook 12–18 Oct & evidence ~5 min6 Record decisions ~5 min