Airline transport pilot licence training cbt videos next lesson. Typical zones on aircraft that have a fixed fire detection andor fire extinguisher system are. Wiring system of thermocouple units divide into detector circuit, alarm circuit and. The fire protection system provides detection and extinguishing of a fire in the engine. Spot detector systems use individual sensors to monitor a fire zone.
Engine fire detection systems and fire zones aircraft. Fire detection system the aircraft systems that have fire detection are. A detection system is also provided for the main landing gear wheel wells. If the temperature rises above a set value, indicate a fire or overheat condition. Examples of spot detector systems are the thermal switch system, the thermocouple system, the optical fire detection system, and the pneumaticbased thermal fire detection system. A simple and short video explaining the aircraft engine fire protection system. A fire detection card in the system card file monitors the loops for fires, overheat conditions, and faults. Two common types used are spot detectors and continuously loop systems. The system is designed to lower operating costs and to. Engine fire detection systems part one flight mechanic. Three detector system types use in aircraft are the thermal switch, thermocouple, and the continuous loop. Automatic systems can detect aircraft fires or potential ignition which might not be apparent to the crew until they have developed to an extent.
In some aircraft, in addition to fire and overheat detection, the kidde continuous loop system can supply nacelle temperature data to the airplane condition. Aircraft fire detection system should signal the presence of a fire. You will find these systems in and near the engine compartment and in the fuselage to protect the occupants. Two common types used are spot detectors and continuously loop. The fire detection system and fire warning are design features of an aircraft. Continuous loop systems are typically installed on transport type aircraft and provide more complete fire detection coverage by using several loop type of sensors. Fire extinguishing and detection systems in general. In the modern and general aviation the fire suppression systems is divided into two subsystems the fire detection system and the fire extinguish system. Several different types of fire detection system are installed in aircraft to detect engine fires. Engine fire detection systems and fire zones aircraft engine fire. New firesmoke detection and fire extinguishing systems for aircraft. Thermocouple fire warning system operates on an entirely different. Aircraft fire detection systems skybrary aviation safety. Introduction the aircraft fire protection system consists of the.
Continuousloop detector, or sensing system, permits more complete coverage of a fire hazard area. Fire protection systems are installed on aircraft to detect and protect against an outbreak of fire. Fire protection systems faa questions a16 flashcards. Fire detection system maintenance fire detector sensing elements are located in many high activity areas around aircraft engines. The new fire protection system is highly reliable, has a modular design and versatility to be adapted for a wide range of aircraft types. Different types of fire detection system are available to detect aircraft engine fires.
Reactivation of a heatsensing fire detection system following the use of an extinguishing system indicates that the risk of fire remains high. Boeing 777 aircraft fire detection and extinguishing system. Although the greatest percentage of the negative statis tics toward detection systems were associated. A fire zone is an area, or region, of an aircraft designed by the manufacturer to require fire detection andor fire extinguishing equipment and a high degree of inherent fire resistance. The aircraft fire protection system consists of a fire and overheat detection and extinguishing system for both engines and the apu. Thermocouple fire warning system operating principle. Apu auxiliary power unit this is a small engine installed generally in the. Fire detection system protects the aircraft and passengers both in case of actual fire during flight. The project focuses on two aspects of aircraft fire protection. Engines turbines apu auxiliary power unit this is a small engine installed generally in the aircraft tail. Fire detectionoverheat systems aircraft fire protection. The information is included only for familiarization purposes. New physical and chemical ways of detecting fire at an early.
As always, the greater the knowledge and understanding that crew members have of their aircraft systems, the better their ability to make well informed decisions. You will find these systems in and near the engine compartment. Fire extinguishing and detection systems in general aviation. The following section discusses the fire detection and extinguishing system of the b777 aircraft. Typical zones on aircraft that have a fixed fire detection andor fire extinguisher system. These systems monitor the conditions which could lead to a fire and are comprised of smoke detectors, heat sensors near engines or. Their location, together with their small size, increases the chance of damage to the sensing elements during maintenance.
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