Mechanism analysis and improvement methods of NTF defects in use for civil aircraft

Abstract The NTF defects in use are raised, including NTF telegraphing, waving, shrinking, bubbling, etc. NTF installation and materials are illustrated, and the mechanism of NTF defects in use is analyzed and clarified, which noted that floor surface, floor deformation, peripheral squeezing, and seat tracks are related to NTF defects in use. Based on mechanism analysis and practical situations, the improvement methods are proposed and verified to be effective.