AVIATION GLOSSARY
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103 published terms17 subject groups73 connected definitions
Learning boundary
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TERMS
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Aircraft SystemsIntermediate
PTU
Power Transfer Unit, PTUPower Transfer Unit: a device that transfers hydraulic power between systems without mixing their fluid.
Understand and continue →Structures & InspectionIntermediate
Penetrant testing
Dye Penetrant Inspection, Liquid Penetrant Inspection, PTA surface NDT method that uses a liquid penetrant to reveal discontinuities open to the surface.
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