An aircraft exhaust system has a significant impact on a plane's performance and passenger safety. It works by diverting combustion byproducts away from the engine while indirectly heating the cabin and carburetor.
A broken system, on the other hand, stops the engine from working right. Even worse, it can cause carbon monoxide poisoning, fire, and engine failure.
The significance of regularly inspecting and maintaining your aircraft exhaust system cannot be overstated. As exhaust systems are often exposed to temperatures above 1,000 degrees Celsius and a corrosive environment, their parts often leak or break.
Hence, it is important that you hire professional aviation welding technicians to maintain your aircraft exhaust system regularly.
Also Read: Practices That Diminish An Aircraft’s Lifespan
In this blog post, we will look deeper into how aircraft exhaust systems directly affect aircraft performance and flight safety.
Why Is It Important To Maintain Your Aircraft Exhaust System?
Plane exhaust systems are exposed to corrosive elements and high temperatures, which can cause leaks and cracks.
The hydrocarbon fuel that is always burning in the system also leaves behind an acidic residue. With all of these factors, some parts of the engine, like the slip joints, cylinder exhaust flange attachments, and clamps, are more likely to wear out than others.
Most mechanics say you should hire a professional to check your exhaust system every 1–2 years as it is exposed to corrosive conditions and high temperatures.
During an inspection, mechanics look at the mufflers and heat deflectors to see if they have any folds, bumps, or areas where they are getting thinner. They also use a vacuum and soapy water, feeler gauges, and/or pressurized systems to look for signs of leaks.
Carbon Monoxide Poisoning
When aircraft fuel is burned, it produces carbon monoxide, an odourless and colourless gas that is poisonous to humans. Meanwhile, the exhaust system removes this dangerous gas from the engine.
If the exhaust system stops working, carbon monoxide and other poisonous fumes can leak into the cabin. This can cause weakness, chest pain, dizziness, headaches, and confusion, according to the FAA website. This gas can be fatal in large quantities.
Another risk associated with a faulty aircraft exhaust system is fire. Keep in mind that the engine generates a lot of heat, which the exhaust must remove in order to prevent overheating, cracks, and leaks.
In comparison to car and motorcycle exhausts, the aircraft exhaust system plays a more critical role. Aside from allowing the engine to perform optimally, it also serves as a cabin heating system, creating a comfortable environment for the passengers and pilots.
Because the exhaust system of an airplane is so important, the FAA has rules about how often it must be maintained and checked.
Telltale Signs Of A Faulty Aircraft Exhaust
To do cabin and exterior checks, you don't need to be a certified aviation technician. Look for anything that seems mechanically suspicious (missing/loose fasteners and rivets, for example). Additionally, keep an eye out for flat grey or sooty black streaks on the pipes of the exhaust system.
Nevertheless, repairs and maintenance should be handled by qualified aircraft mechanics.
When performing your pre-flight examination, keep an eye out for these additional warning indications of an inoperable aircraft exhaust system.
- Muffler leaks, cracks, and malformed areas
- Unbalanced stacks
- Any grey or yellowish residue close to any exhaust system components
- Missing, bent, or broken components
- Metal deterioration, thinning, or bulges in any exhaust system component
Even if there is no obvious damage, this does not guarantee that the aircraft is secure for flight. Because of this, the FAA mandates routine maintenance that is based on aircraft usage. However, in general, planes must undergo a thorough examination once a year and after 200, 400, 600, and 800 hours of flight.
So, make sure you hire professional aviation welding technicians and let them check the exhaust system of your plane before every flight.
About Acorn Welding
Acorn Welding is a professional aviation company that provides a wide range of services, including high-quality aircraft products. Our aviation welding technicians are fully familiar with the different aspects of engines and aircraft numbering systems. Hence, we are able to provide the best aviation products and services.
If you want to benefit from our professional aviation services, you can contact us today.
