What is the role of Change Control and an Engineering Change Notice (ECN) in Boeing's engineering process?

• A. A method to reduce documentation requirements during changes.
• B. A process to record changes but not approve them.
• C. A formal process to approve, document, and implement changes to designs or processes; ECN documents authorize and communicate the change.
• D. A marketing brief describing design updates.

Answer: (C)

The main idea here is that changes in Boeing’s engineering work are managed through a formal, auditable process that ensures every modification is justified, reviewed, and authorized before it’s put into effect. Change Control provides the structured approach to evaluate safety, reliability, cost, and impact on other parts of the design or manufacturing process, with clear roles for engineering, quality, and production to approve the change. The Engineering Change Notice is the actual document that records what is changing, why, who approved it, and how the change will be implemented. It ties to updated drawings, specifications, bills of materials, and procedures, and it communicates the authorized change to all affected parties. This creates a traceable history for audits and future maintenance and ensures configuration integrity across the product lifecycle. Options that suggest skipping documentation, avoiding approval, or serving a marketing purpose don’t align with how these controls function in practice.