TC98 (Scenario S88) — evidence file ClickUp: https://app.clickup.com/t/9014651757/86bbtm6tj Capability: C36 Knowledge Sync — mutation slice, add step (MS-v0 -> MS-v1) Verbatim query: When does the Tromso depot open? Reference answer: 14 October 2026 Separate collection used for the mutation slice (never mixed with the SS-v1 stable slice collection). Mutation applied in the required order: MS-v0 baseline (4 docs: B01_oncall_rota_notes.md, B02_shipping_lead_times.pdf, B03_approved_supplier_list.docx, B04_site_access_notes.txt) ingested and confirmed indexed first, THEN B05_tromso_depot_ bulletin.md added to reach MS-v1. Per ground truth: MS-v0 digest 0c40b34f1fb09799 (4 docs), MS-v1 digest 953bb6960d50a969 (5 docs) -- neither 'Tromso' nor the date occurs in MS-v0 or the stable slice, so the fact isn't inferable without re-indexing. ============================================================================== BEFORE — queried at MS-v0 baseline (B05 not yet added) ============================================================================== status: 200 answer: The retrieved information does not state when the Tromso depot opens. all 5 retrieved sections (full content), sorted by score: score=1.0000 document_id=0b4ff443-a8ea-4904-a8b3-d93f468ff435 File Name: B02_shipping_lead_times.pdf Extracted Text: Fenwake Instruments Ltd # Shipping Lead Times Central store, Bristol - outbound to depots and customer sites ## How to read this Lead times are quoted from the courier collection, not from the moment a stores request is raised. Anything handed over after the 15:30 cut-off travels the following working day, and the lead time starts then.
Destination Route Lead time
Aberdeen Road, own vehicle 3 working days
Lerwick Road and ferry 4 working days
Gothenburg Road and ferry, groupage 7 working days
Esbjerg Road and ferry, groupage 9 working days
Bergen Road and ferry, groupage 11 working days
Lead times to the Nordic depots assume a groupage service. A dedicated vehicle is quoted on request and is normally quicker, but is not held against these figures. ## Dangerous goods Any consignment containing a lithium cell above the threshold needs a signed packing declaration and travels on a different service. Add two working days to the figures above, and involve a trained shipper before booking. Two people in the building hold the certification. ## Returns Inbound lead times are not the outbound figures in reverse. A return from a depot travels on the next scheduled groupage movement rather than on collection, so plan a return around the movement rather than around the courier. ## Who maintains this The stores controller reviews these figures against the carrier's performance each quarter and changes them here when the carrier's own schedule changes. Central store, Bristol Page 1 score=0.5833 document_id=f10c469d-35b5-49c5-8969-fe845d247668 File Name: B04_site_access_notes.txt Extracted Text: FENWAKE INSTRUMENTS LTD Site access - standing notes for engineers Central store and service desk. Not a contractual document. PERMITS Most customer sites need a permit raised before the day, not on it. Raise it through the customer's own system and take the reference with you; a permit that exists only in an inbox is a permit that will not open a gate. A permit is site-specific and person-specific. An engineer who swaps onto a job at short notice needs their own, and the swap is the reason most access is refused at the gate. INDUCTIONS Water treatment sites and harbour authorities run their own inductions, valid for twelve months. The service desk keeps the expiry dates against each engineer. An induction that expires mid-job is treated as expired for the whole job. TIDE AND ACCESS WINDOWS Intake structures are reachable only around low water. Plan the visit around the window and tell the customer which window you are working to, so that a delayed start is a conversation rather than a surprise. KEYS AND CODES Never write a gate code on a job sheet. Codes are held by the service desk and read out on the day. A code that has changed is reported the same day, because the next engineer will otherwise repeat the wasted journey. VESSELS On a vessel, the master's instructions take precedence. Board with your own survival certification in date; the vessel will check it and will refuse boarding without it. WHAT TO DO IF ACCESS IS REFUSED Do not argue at the gate. Ring the service desk, who will ring the customer's site contact. Record the refusal and the reason on the ticket before leaving, while the detail is still accurate. score=0.5333 document_id=de5dbe95-5830-434b-92bf-9a0229d26408 File Name: B01_oncall_rota_notes.md Extracted Text: # On-call rota - working notes For the service desk lead. Not a contractual document. ## Shape of the rota The duty engineer rota runs Monday to Monday, handing over at 09:00. Four engineers are on the rota at any time, which puts each of them on call one week in four. An engineer who is on call does not travel offshore in the same week. ## Cover for absence Where an engineer on the rota is absent, the service desk lead swaps rather than doubles: the week is given to the next engineer in the cycle and the absent engineer takes theirs. Doubling a week has caused more missed pages than any other cause and is not done. On a statutory non-working day the rota does not change. The standby allowance for that week is paid at the enhanced rate set out in the handbook. ## Handover Handover is a call, not a message. The outgoing engineer walks the incoming one through every ticket still open, what has been tried, and what the customer has been told. A ticket that changes hands without that call is the single most common source of a customer being told two different things. ## Paging The out-of-hours number pages the engineer on call. Where the page is not acknowledged, it escalates to the service desk lead automatically, and then to the head of service operations. Test the pager at the start of every week before the handover call ends. score=0.4500 document_id=d9467dab-9f21-4868-8ddb-b6ca407f7634 File Name: B03_approved_supplier_list.docx Extracted Text: # Approved Supplier List *Fenwake Instruments Ltd - *parts fitted to instruments in service* ## 1. Scope This list names the suppliers approved for parts fitted to instruments in service. A part from a supplier not on this list is not fitted, whatever the lead time pressure, because the part becomes part of a calibrated instrument. ## 2. Single-source parts The sole approved supplier of the H-clamp bracket is Ardwyn Fabrication (Newport), quoted per batch of fifty. The bracket is machined to our drawing and no second source has been qualified, so a shortage here stops the fitting rather than being worked around. Where a single-source part is short, the stores controller tells the service desk lead the same day. A substitution is authorised by the head of service operations in writing, and the instrument record carries the substitution. ## 3. Approved suppliers
Part Supplier Location
H-clamp bracket Ardwyn Fabrication Newport
Sacrificial anode set Trellech Metals Chepstow
Anti-fouling guard Coldbrook Polymers Taunton
Cable gland kit Sedgemoor Sealing Bridgwater
Armoured deck cable Nailsea Cable Works Nailsea
## 4. Qualifying a new supplier score=0.3333 document_id=d9467dab-9f21-4868-8ddb-b6ca407f7634 ## 4. Qualifying a new supplier A new supplier is qualified on a first-article inspection and a documented material certificate. Qualification is recorded against the part, not against the supplier as a whole: a supplier approved for one part is not thereby approved for another. ## 5. Review The stores controller reviews this list each quarter with the workshop manager. A supplier that has missed two consecutive delivery commitments is reviewed regardless of the schedule. ============================================================================== AFTER — queried at MS-v1 (B05 added, indexed) ============================================================================== status: 200 answer: The Tromso depot opens on **14 October 2026**. all 6 retrieved sections (full content), sorted by score: score=1.0000 document_id=e747664e-aa91-4ec3-82fd-9365709af4e4 File Name: B05_tromso_depot_bulletin.md Extracted Text: # Depot bulletin - a new depot in the region For the service desk, the Bergen depot and central stores. ## What is opening The Tromso depot opens on 14 October 2026 and will hold four Tolvan C5 loan units and a full Brannoc spares kit. It is the third depot in the network and the first above the Arctic Circle. ## Why Response to the northern fields has been limited by the sailing time from Bergen rather than by engineering. Holding loan stock and a spares kit locally removes the leg that has cost the most time on recent tickets. ## Staffing One engineer and a shared stores controller, working 07:00 to 15:00 local time, Monday to Friday. Out of hours the northern sites continue to page the existing duty engineer rota; the new depot does not change how a fault is reported. ## What to do differently Stop routing northern loan requests through Bergen once the depot opens. Ring the new depot directly. Bergen keeps its own loan pool and its own spares kit, and nothing moves out of Bergen to stock the new site. ## What is not changing Calibration stays in the laboratory. The new depot does not calibrate, does not break a calibration seal, and does not open a pressure housing. score=0.6667 document_id=0b4ff443-a8ea-4904-a8b3-d93f468ff435 File Name: B02_shipping_lead_times.pdf Extracted Text: Fenwake Instruments Ltd # Shipping Lead Times Central store, Bristol - outbound to depots and customer sites ## How to read this Lead times are quoted from the courier collection, not from the moment a stores request is raised. Anything handed over after the 15:30 cut-off travels the following working day, and the lead time starts then.
Destination Route Lead time
Aberdeen Road, own vehicle 3 working days
Lerwick Road and ferry 4 working days
Gothenburg Road and ferry, groupage 7 working days
Esbjerg Road and ferry, groupage 9 working days
Bergen Road and ferry, groupage 11 working days
Lead times to the Nordic depots assume a groupage service. A dedicated vehicle is quoted on request and is normally quicker, but is not held against these figures. ## Dangerous goods Any consignment containing a lithium cell above the threshold needs a signed packing declaration and travels on a different service. Add two working days to the figures above, and involve a trained shipper before booking. Two people in the building hold the certification. ## Returns Inbound lead times are not the outbound figures in reverse. A return from a depot travels on the next scheduled groupage movement rather than on collection, so plan a return around the movement rather than around the courier. ## Who maintains this The stores controller reviews these figures against the carrier's performance each quarter and changes them here when the carrier's own schedule changes. Central store, Bristol Page 1 score=0.4500 document_id=f10c469d-35b5-49c5-8969-fe845d247668 File Name: B04_site_access_notes.txt Extracted Text: FENWAKE INSTRUMENTS LTD Site access - standing notes for engineers Central store and service desk. Not a contractual document. PERMITS Most customer sites need a permit raised before the day, not on it. Raise it through the customer's own system and take the reference with you; a permit that exists only in an inbox is a permit that will not open a gate. A permit is site-specific and person-specific. An engineer who swaps onto a job at short notice needs their own, and the swap is the reason most access is refused at the gate. INDUCTIONS Water treatment sites and harbour authorities run their own inductions, valid for twelve months. The service desk keeps the expiry dates against each engineer. An induction that expires mid-job is treated as expired for the whole job. TIDE AND ACCESS WINDOWS Intake structures are reachable only around low water. Plan the visit around the window and tell the customer which window you are working to, so that a delayed start is a conversation rather than a surprise. KEYS AND CODES Never write a gate code on a job sheet. Codes are held by the service desk and read out on the day. A code that has changed is reported the same day, because the next engineer will otherwise repeat the wasted journey. VESSELS On a vessel, the master's instructions take precedence. Board with your own survival certification in date; the vessel will check it and will refuse boarding without it. WHAT TO DO IF ACCESS IS REFUSED Do not argue at the gate. Ring the service desk, who will ring the customer's site contact. Record the refusal and the reason on the ticket before leaving, while the detail is still accurate. score=0.4167 document_id=de5dbe95-5830-434b-92bf-9a0229d26408 File Name: B01_oncall_rota_notes.md Extracted Text: # On-call rota - working notes For the service desk lead. Not a contractual document. ## Shape of the rota The duty engineer rota runs Monday to Monday, handing over at 09:00. Four engineers are on the rota at any time, which puts each of them on call one week in four. An engineer who is on call does not travel offshore in the same week. ## Cover for absence Where an engineer on the rota is absent, the service desk lead swaps rather than doubles: the week is given to the next engineer in the cycle and the absent engineer takes theirs. Doubling a week has caused more missed pages than any other cause and is not done. On a statutory non-working day the rota does not change. The standby allowance for that week is paid at the enhanced rate set out in the handbook. ## Handover Handover is a call, not a message. The outgoing engineer walks the incoming one through every ticket still open, what has been tried, and what the customer has been told. A ticket that changes hands without that call is the single most common source of a customer being told two different things. ## Paging The out-of-hours number pages the engineer on call. Where the page is not acknowledged, it escalates to the service desk lead automatically, and then to the head of service operations. Test the pager at the start of every week before the handover call ends. score=0.3667 document_id=d9467dab-9f21-4868-8ddb-b6ca407f7634 File Name: B03_approved_supplier_list.docx Extracted Text: # Approved Supplier List *Fenwake Instruments Ltd - *parts fitted to instruments in service* ## 1. Scope This list names the suppliers approved for parts fitted to instruments in service. A part from a supplier not on this list is not fitted, whatever the lead time pressure, because the part becomes part of a calibrated instrument. ## 2. Single-source parts The sole approved supplier of the H-clamp bracket is Ardwyn Fabrication (Newport), quoted per batch of fifty. The bracket is machined to our drawing and no second source has been qualified, so a shortage here stops the fitting rather than being worked around. Where a single-source part is short, the stores controller tells the service desk lead the same day. A substitution is authorised by the head of service operations in writing, and the instrument record carries the substitution. ## 3. Approved suppliers
Part Supplier Location
H-clamp bracket Ardwyn Fabrication Newport
Sacrificial anode set Trellech Metals Chepstow
Anti-fouling guard Coldbrook Polymers Taunton
Cable gland kit Sedgemoor Sealing Bridgwater
Armoured deck cable Nailsea Cable Works Nailsea
## 4. Qualifying a new supplier score=0.2857 document_id=d9467dab-9f21-4868-8ddb-b6ca407f7634 ## 4. Qualifying a new supplier A new supplier is qualified on a first-article inspection and a documented material certificate. Qualification is recorded against the part, not against the supplier as a whole: a supplier approved for one part is not thereby approved for another. ## 5. Review The stores controller reviews this list each quarter with the workshop manager. A supplier that has missed two consecutive delivery commitments is reviewed regardless of the schedule.