# Engineering Change Implementation Readiness Checklist > Source: https://netray.co/tools/engineering-change-implementation-readiness-checklist > Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems. > Section: Free Tools ## Short answer Pre-release checklist covering documents, stock disposition, suppliers, ERP data, shop floor and quality actions for an engineering change order. ## Category engineering-plm ## Audience - Engineering manager - Configuration manager - Planner - Quality manager ## Tool **Kind:** checklist **Groups:** #### Change definition and approval **Items:** **Text:** Reason for the change and the problem it solves are recorded **Critical:** true **Text:** Form, fit, function test is documented and the change class is set **Critical:** true **Text:** All affected part numbers and assemblies are listed from a where-used check **Critical:** true Cost impact for tooling, stock and rework is estimated **Text:** Required approvers have signed, including quality and manufacturing **Critical:** true **Text:** Customer or regulator approval is received where the change class requires it **Critical:** true Risk review (for example FMEA update) is done for safety or key characteristics #### Documents and data **Items:** **Text:** Drawings, models and specifications are updated and revisions incremented **Critical:** true Redlines are cleared and the released files match the approved change **Text:** BOM changes are prepared with correct effectivity dates or serial ranges **Critical:** true Routing, work instructions and inspection plans are updated Labels, packaging specs and certificates of conformance are checked Service, spare part and customer documentation updates are identified Superseded revisions are marked and access to them is controlled #### Inventory and supply **Items:** **Text:** On-hand stock, WIP and finished goods are counted for the old revision **Critical:** true **Text:** Disposition is decided for each stock location: use up, rework, scrap or return **Critical:** true **Text:** Open purchase orders and subcontract orders are updated or cancelled **Critical:** true Suppliers are notified in writing with the new revision and effectivity First article or first lot inspection is arranged for new or changed parts Long lead and tooling items are on order for the new design Old stock is segregated and labelled to prevent mixed use #### ERP and shop floor **Items:** ERP item, BOM and routing changes are tested in a non-production environment **Text:** MRP is reviewed after the change for pegging errors and unwanted demand **Critical:** true **Text:** Open work orders are reviewed and updated or reissued where required **Critical:** true Production and quality leads are briefed with a shop floor notice Training on changed operations is complete and recorded Gauges, fixtures and programs for the new revision are released and verified **Text:** Traceability records capture the cut-in lot or serial number **Critical:** true #### Verification and closure **Items:** **Text:** First production units are inspected against the new revision **Critical:** true Problems found at cut-in are logged and corrective actions assigned Actual cost of the change is compared with the estimate All change tasks are closed and the record shows completion dates Lessons learned are captured for the next change **Scoring Note:** Mark each item as complete or not applicable. Treat every unchecked critical item as a gate: do not release the change until it is resolved or formally waived by the change board. ## Content **Intro:** Most engineering change problems show up after the document is approved: old parts used by mistake, purchase orders left on the previous revision, work orders without the new routing. This checklist walks through the actions to confirm before an ECO is released and after cut-in. **Sections:** #### How to use the checklist **Body:** Go through the five groups with the change owner, planner, quality and the shop supervisor. Tick items that are done and mark the rest as open or not applicable. Critical items are the ones that, in practice, cause scrap, rework or shipped nonconforming product when they are missed. Export the completed list to PDF and attach it to the change record as evidence for audits. **Bullets:** - Run it at the change board before approval and again before cut-in - Assign an owner and date to every open item - Keep the completed list with the change record #### Why these checks matter **Body:** A change touches design data, inventory, supply, ERP and the floor. Standards such as ISO 9001 clause 8.5.6 on control of changes and AS9100 configuration management expect that changes are reviewed, verified and controlled, and that the effect on existing product is evaluated. The checklist maps those expectations to concrete tasks: the where-used check finds hidden parents, the stock disposition prevents silent use of old parts, and the first article step proves the change worked. #### Common mistakes **Body:** Typical failures are releasing the BOM before purchasing knows, leaving open work orders on the old structure, updating drawings but not work instructions, and closing the change before the first built units are inspected. Another is skipping the supplier notice for a part that is made to a drawing the supplier holds. Treat the supplier and the floor as customers of the change and tell them what, when and which lot. **Cta:** If ECO tasks are tracked by email and spreadsheets, Netray can discuss ways to surface open orders and affected stock for each change from your ERP data. **Faq:** #### Who should sign off an engineering change? **Answer:** At minimum engineering, quality and manufacturing, plus purchasing, planning or service where they are affected. Class I changes also require customer approval where the contract says so. Your change procedure defines the exact list. #### When is an ECO considered closed? **Answer:** When all tasks are complete, the new revision is in production, old stock is dispositioned and the first units are verified. Closing at approval, not after verification, is a common cause of quiet problems. #### How do I handle an emergency change? **Answer:** Use a fast-track route with the same minimum checks: affected parts, stock disposition and approval, and then review the full checklist afterwards. Record who approved and why the usual process was shortened. #### Does this work for software or firmware changes? **Answer:** Most items apply, especially approvals, effectivity, traceability and verification. Replace drawings and BOM items with release notes, version identifiers and test evidence, and track which units carry which version. ## Search terms engineering change checklist, ECO implementation checklist, ECN release checklist, engineering change order readiness, change implementation steps manufacturing, ECO closure checklist, engineering change management checklist, engineering change board checklist --- Talk to an engineer: https://netray.co/contact?intent=erp_ai | Machine catalog: https://netray.co/agent/catalog.json