Definition
A nondestructive testing method that uses X-rays or gamma rays to examine the internal structure of aircraft parts. The radiation passes through the part and exposes a film or digital sensor on the other side, producing an image that reveals internal cracks, voids, corrosion, or foreign objects without cutting the part open.
Plain English
Taking an X-ray of an aircraft part to see what's going on inside it without taking it apart or damaging it.
Context Anchor
Seen in aircraft maintenance, repair manuals, inspection procedures, and maintenance records when a part must be checked internally without being taken apart or destroyed.
Derivation
From 'radio-' (radiation, from Latin 'radius' meaning ray) and '-graphic' (writing or drawing, from Greek 'graphein' meaning to write). Literally 'writing with rays' — the radiation draws an image of the part's interior onto film.
Why Pilots Care
Detects internal flaws in critical parts that could cause in-flight failures if left undetected.
Analogy
Like a medical X-ray, but for aircraft parts. Just as a doctor uses an X-ray to see a broken bone inside an arm, a technician uses radiography to see a crack inside a metal fitting.
Intuition Check
Radiographic inspection is not a radio check or a visual inspection with better lighting. It means using penetrating rays to make an image of the inside of a part.
Example Sentence 1
The mechanic ordered radiographic inspection of the welded engine mount to check for internal cracks before returning the aircraft to service.
Example Sentence 2
Radiographic inspection confirmed the engine mount had no hidden cracks before reinstallation.