When we see or hear the word ‘engineering’ used in the context of the airline industry around the world we often think of manufacturing design engineering. While it is true Sonico is involved with designing tools and components for its own use in providing maintenance services we don’t think of ourselves as providing design engineering for spares. We think of ourselves as providing application engineering services. We see the results of engineering design after the experience of in service use and adapt what we learn to the application of product improvement. More often than not the adaptation is a matter of degrees not radical changes and certainly not product redesign. Sonico currently holds no Supplemental Type Certificates (STC) or Parts Manufacturing Approvals (PMA), but we hold numerous OEM and FAA unique repair approvals to reduce the meantime between failures of components while in service.