In order to achieve aviation safety. integrity of two pillars is essential: product and operations. Regarding product integrity of transport category rotorcraft. its requirements are established in USA by the Federal Aviation Administration (FAA) Part 29. https://safeersappliancers.shop/product-category/siemens-kg39n7xedg-iq300-no-frost-freestanding-fridge-freezer-black-stainless/