Nondestructive Testing for Composite of Thrust Reverser Inner Wall of Boeing 737 Airplane Engine

Due to some mistake in design, there was a risk of heat damage in some Boeing 737 airplane engine’s inner wall of the thrust reverser. It was necessary to examine the inner wall composite of the thrust reverser. By compare and analyse some nondestructure testing techniques, the ultrasonic low-frequency surface bonding inspection technique was selected. The test results showed that the technique was suitable for field test, and its high efficiency was fit for the composite.