Borescope Inspections Units must be drained of oil to validate reduced rates. 8 gearboxes collective within a 100 mile radius required. No prior purchases. See chart deadlines and offer expiry for your area. Additional restrictions may apply, contact your representative for further details. About Artec Borescope Inspections Efficiency: avoid costly and unnecessary tear-down evaluations. Accessibility: Our technicians can analyze tight areas with precision fiber optics. Isolation: There's a greater chance of detecting a potential failure before it occurs. Capital: Prevent unnecessary maintenance to keep your investment's return.