Confidence: high. The IGU was intact during final assembly and QC at VDC (no defect reported at manufacturing). The crack was discovered only upon unwrapping at the job site, indicating the damage occurred in transit or during delivery handling. This is a classic shipping damage scenario per the SHIP department definition. The window should be remade and shipped with reinforced packaging. No manufacturing, material, or order entry defect is indicated. Fault origin: shipping_damage.