TSO Number Subject C1 Cargo Compartment Fire Detection Instruments C11 Powerplant Fire Detection Instruments (thermal and flame contact types) C13 Life Preservers C19 Portable Water-solution Type Fire Extinguishers C22 Safety Belts C25 Aircraft Seats and Berths (type I transport, 6G forward load) C39 Aircraft Seats and Berths C64 Oxygen Mask Assembly, Continuous Flow, Passenger C69 Emergency Evacuation Slides, Ramps, and Slide/Raft Combinations C70 Life Rafts C72 Individual Flotation Devices C78 Crewmember demand oxygen masks C79 Fire Detectors (radiation sensing type) C85 Survivor Locator Lights C89 Crewmember Oxygen Regulators, Demand C99 Flight Deck (Sedentary) Crewmember Protective Breathing Equipment C100 Aviation Child Safety Device (ACSD) C103 Continuous Flow Oxygen Mask Assembly (for non-transport category aircraft) C114 Torso Restraint Systems C116 Crewmember Protective Breathing Equipment C137 Aircraft Portable Megaphones C142 Non-recharggeable Lithium Cells and Batteries