Fire is a serious matter whether you’re in your home or in a car. It’s even more of an issue when you’re six miles above the ground in an aircraft. With that in mind, aircraft manufacturers and airlines themselves take this threat very seriously.
The engines have a sophisticated system of not only fire detection, but also of fire extinguishing. 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.
In the cabin, too, procedures are in place to keep all on board safe. Smoking is banned on flights for a very good reason. 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.