10 Year / Major Inspections for Cranes, EWP, Lifting Equipment & Tele-Handler Annual Inspections for Cranes, EWP & Tele-Handler - N DT Inspection A 10 Year/ Major inspection is an extensive structural and mechanical evaluation mandated for safety and reliability, including load testing, wire rope inspection, and certification renewal. Annual inspections ensure machines operate safely and efficiently through routine, comprehensive checks.