All installations include FAA required paperwork, weight & balance amendments, log book entries & FAA 337 as required, flight manual supplements. Some restrictions apply and install prices refer to most aircraft. Call (800) 447-3408 with your aircraft information and any questions regarding installation. Transponder installations included FAR 91.411 24 month certification at time of return to service. Chief's repair facility features NCATT (National Center for Aerospace & Transportation Technologies) certified technicians.