Five Ways to Care for Your Aircraft Propeller

Even the most responsible and frugal aircraft owners understand that owning an aircraft will never be inexpensive. Despite this, there are many steps you can take to minimize the need for expensive repairs, especially with your propeller. Regular inspection and preventative maintenance will not only increase the service life of your propeller, but also save a significant amount of money over time. This blog will cover five things you can do to protect your propeller and extend its operational life.

Perform Regular Inspections

Regular inspection will allow you to spot potential issues before they turn into major problems. Prior to each flight, give your propeller a thorough inspection for physical damage such as paint damage, nicks, cracks, and any signs of external corrosion on the blades. Next, check the spinner and spinner assembly for cracks and loose or faulty hardware. Lastly, check the interior of the spinner for grease. A small amount of grease is perfectly normal, but an excessive amount signifies a problem.

Keep It Clean

During flight, the propeller is under constant stress, so giving it proper care after every use is critical. When cleaning the propeller, do so with a soft cloth and a combination of dish soap and water to remove dirt and bugs. You should never use a pressure washer because they can remove paint and damage internal components. Furthermore, to prevent water from entering the hub, point the propeller blades in the ‘down’ position and wipe downward toward the ground.

Care for the Paint

Your propeller’s paint is there for much more than just cosmetics. It also provides a protective layer that can significantly add to the life of your propeller. As such, it should be regularly checked for chipping or flaking. Small touch-ups can be done yourself, but major paint damage should be cared for by a specialist. Serious paint problems, such as corrosion, may result in the propeller blade needing a complete repaint.

Keep Propeller Balances

A static balance, which is routinely done during overhaul service, should also be done any time the propeller is removed from the aircraft. Another type of balancing, dynamic balancing, refers to a specialized service performed when the entire propeller and engine assembly is running. The process of dynamic balancing measures the vibration magnitude of the propeller and engine, allowing technicians to identify imbalances and correct them. This greatly reduces cabin vibration and smoother flight. While dynamic balancing usually costs more, it is a good move to protect the propeller, engine, airframe, and avionics.

Follow Manufacturer TBO Limits

No matter how well you care for your propeller, it will eventually need to be overhauled or replaced. As such, aircraft owners should always make note of the propeller manufacturer’s published TBO (time between overhaul) limits and send your propeller to a certified technician when it’s time for an overhaul. TBO limits are in place to protect your safety, because propellers require maintenance and inspection like any other part of your aircraft. Following the manufacturer’s published overhaul guidelines will ensure that any issues developing within your propeller are identified early while they can still be fixed.

For aircraft propeller components of all types, look no further than NSN Sourcing, a trusted supplier of parts for a wide range of industries. Owned and operated by ASAP Semiconductor, we are an online distributor of marine parts as well as parts pertaining to the aerospace, civil aviation, defense, electronics, and IT hardware markets. We’re always available and ready to help you find all the parts and equipment you need, 24/7-365. For a quick and competitive quote, call us at 1-720-923-2840 or email us at


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