11/29/2023 0 Comments 787 flight deck photos![]() If there is then any disparity between the answers, more diagnosis is needed. This enables them to make their own assessment of the situation and give their own answer. ![]() "Which engine do you think is on fire?" is a much better way of phrasing the question. However, using open questions enables the other pilot to make their own assessment. Do you agree?", it's very easy just to say yes. When under pressure and the other pilot says to you, "Do you think the fire is in the left engine?" or, "I think the left engine is on fire. In the heat of the moment, it's very easy to be led by the compelling red lights in the flight deck. Selecting the correct switch is of paramount importance.Įven though the aircraft systems illuminate which switches they should use, they will still confirm with each other which engine has the fire. They will then instruct the Pilot Monitoring (PM) to carry out the "Fire Engine Left" memory items. It is imperative that one pilot continues to monitor the flight path of the aircraft and does not get drawn into dealing with the problem. The pilot responsible for flying the aircraft (Pilot Flying, or PF) will continue to do just that. With the activation of the engine fire system, for this example, the left engine, the pilots have a well-practiced routine to execute. The appropriate Fuel Control switch illuminates red, as does the appropriate Engine Fire switch. On the EICAS (Engine Indication and Crew Alert System) screen, the FIRE ENG L or R is displayed. Firstly, the fire bell sounds along with the illumination of the red Master Warning light. When the system detects the presence of a fire in the engine, a number of indications appear in the flight deck. If both systems were to fail, then no fire detection is available and the aircraft would not be allowed to depart. In that, should the remaining system detect a fire or overheat situation, it triggers the appropriate warning in the flight deck. That said, if the aircraft detects that one of the channels has broken, the system reverts to single channel operation. With a second thermometer in the pan, if both show the desired temperature at the same time, you can be pretty sure that the reading is accurate. With one thermometer in the pan, when the reading hits the desired temperature, the water could be at that temperature or, the thermometer could be broken or inaccurate. It's like trying to heat a pan of water to an exact temperature. The presence of the second system guards against these false warnings. This is obviously the safe option in the case of a system failure, but if every time a detection channel failed, the pilots would have no option but to shut the engine down and divert the aircraft. The whole point of having two fire detection systems is to guard against false positives - situations where one system may have a fault and then indicate a fire. That sounds pretty complicated so let's break it down. The engines on the 787 have a sophisticated fire detection system In normal cases, at least one element in each channel must detect a fire or an overheat for the fire warning to go off in the flight deck. Each channel provides both fire and overheat detection. In each engine, there are multiple dual-channel detector assemblies. So what happens if there is a fire in a part of the engine which isn't the combustion chamber? This constant burning of fuel is a controlled fire, albeit in an area that is designed to contain the fire. Yet, what if I were to tell you that an engine is always on fire? Surprised? In order to generate the thrust to move the aircraft forward, fuel must be ignited. If you think of fires on an aircraft, you probably think of engines being on fire. However, should someone think that they know better, flight attendants are provided with the tools and training they need to deal with any fire that may occur. Smoking is banned on flights for a very good reason. In the cabin, too, procedures are in place to keep all on board safe. Pilots are regularly trained on how to deal with an engine fire, shut the engine down and land the aircraft safely at a nearby airfield. The engines have a sophisticated system of not only fire detection, but also of fire extinguishing. With that in mind, aircraft manufacturers and airlines themselves take this threat very seriously. It's even more of an issue when you're six miles above the ground in an aircraft. Fire is a serious matter whether you're in your home or in a car.
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