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December 20, 2021

Unlike vehicle mufflers which are mainly used to reduce the noise that comes from the combustion chamber, aircraft mufflers perform a more crucial role. They not only reduce the engine noise but also keep the exhaust gases away from the engine, fuselage, supply cabin heat and carburetor.

The role of an aircraft muffler is so significant that if it fails, it can lead to serious consequences, including carbon monoxide poisoning, fire, serious injuries, and even the complete loss of your plane.

Aircraft muffler wear and tear, especially problems and leaks in its metal parts, can partially or completely stop your aircrafts’ power supply.

Read More: AIRCRAFT DEFECTS AND THEIR CONSEQUENCES

According to federal aviation authorities, faulty aircraft mufflers are one of the most common reasons behind aircraft engine failure. FAA engineers conclude that most of the accidents were caused by hidden wear and tear on the inner parts of the system that were not visible to both the pilot and the mechanic.

Although finding the inner problems is a tricky job, it is not a blind end. This blog post explains some of the steps mechanics can follow to grasp the problem before it becomes serious.

What Operators And Owners Can Do

As an operator or owner of an aircraft, you can get familiar with the design and components of your aircraft, including its exhaust system. Doing so will help you recognize any defective or abnormal areas or changes that were not there during the last inspection.

Always keep in mind that as an operator or an owner, you are responsible for getting any defects immediately reported, addressed, and repaired.

Another thing you can do as an owner is to make sure that the mechanic removes the heat shroud to inspect the ducting connection, heat exchanger, and other internal components. However, there is a more invasive way to inspect the inner areas of the muffler, that is by placing the borescope at one end of the open muffler.

If your mechanic detects problems in the muffler, tailpipes, and exhaust stacks, the FAA recommends complete replacement instead of repairs. However, replacement is an expensive, lengthy, and time-consuming process as it involves the use of special tools and equipment.

If you still find yourself resisting replacements and insisting on repairs, make sure to get it done properly by certified aviation technicians.

Telltale Signs Of A Faulty Exhaust System

Acorn welding being the top aviation welding and maintenance company provides some tips on how you can identify a faulty exhaust system. Some of these telltale signs include;

  • Leakage: Leaks anywhere are always a warning sign. Similarly, if you spot some black or grey powder near the exhaust systems parts like external joints, flanges, or joints. This might be a sign of internal leaks, get your exhaust system inspected immediately.
  • Misaligned Components: Missing, bend, or loose parts are often signs of incorrect installation. The wrong installation can cause serious problems from parts misplacement to system collapse. Therefore, it is important to make sure all components are tight and installed correctly.
  • Structural Deterioration: Dents, cracks, corrosion, discoloration, thinning, and weld separation are the most common telltale signs of problems with your aircraft’s exhaust system. In general, things lose their shape and structure when they are too old, or have some sort of functional problem.

About Us

Acorn welding is your sole one-stop shop for professional aircraft mounts and exhaust systems. We are Canada’s largest aircraft mount and exhaust repair company and the world’s largest vintage aircraft exhaust repair company. We take pride in serving our customers from all around the world. Our expertise also includes light sport aircraft, homebuilt aircraft, helicopters, warbirds, tubular structures, carb heat boxes, seat structures, fuel tanks, oil tanks, consulting services, drafting services, design services, reverse engineering services, laser/water jet cutting, and more.

Contact us now and avail our top-class repairing, maintenance, and consulting services and keep your aircraft in good shape.