How to Inspect an Engine With a Borescope

A technician's step-by-step method for borescope engine inspection: access points, what good and bad look like, and common mistakes.

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SK Kutubuddin

Former aircraft technician · 20 years, Indian Air Force

SK spent two decades maintaining and inspecting multiple fighter-aircraft variants for the Indian Air Force, with formal qualifications in aeronautical engineering (BAMEC) and aviation fuels & lubricants. GaugeGrade applies the same inspection and torque standards he used on the flight line to the tools everyday mechanics, DIYers and trades actually buy.

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