ECO close-out requires which evidence?

ECO close-out requires which evidence?

• A. Updated drawings
• B. BOM
• C. Successful verification tests
• D. All of the above.

Answer: (D)

Closing an Engineering Change Order requires proving the change is fully implemented and validated across all affected areas. Updated drawings ensure the current geometry and specifications post-change are clearly documented for manufacturing, maintenance, and inspection. The BOM reflects any revisions to parts, quantities, or part numbers, preventing mismatches and ensuring correct sourcing and inventory. Successful verification tests demonstrate that the change meets required performance, safety, and reliability criteria and that unintended effects have been ruled out. Together, these pieces confirm the change is ready to baselined and released; missing any one of them would leave the modification inadequately closed and could lead to nonconformance or confusion on the shop floor.

Closing an Engineering Change Order requires proving the change is fully implemented and validated across all affected areas. Updated drawings ensure the current geometry and specifications post-change are clearly documented for manufacturing, maintenance, and inspection. The BOM reflects any revisions to parts, quantities, or part numbers, preventing mismatches and ensuring correct sourcing and inventory. Successful verification tests demonstrate that the change meets required performance, safety, and reliability criteria and that unintended effects have been ruled out. Together, these pieces confirm the change is ready to baselined and released; missing any one of them would leave the modification inadequately closed and could lead to nonconformance or confusion on the shop floor.