Small engine aircraft work much differently than larger commercial aircraft. They use different engines, fuel types and safety equipment. You can take your small engine aircraft to any old aircraft maintenance hangar for you overhaul, but you may want to think twice. You may want to take your business’s aircraft to someone who knows the PT6A engine intimately. You may want to take your aircraft to a company that is committed to a passion for small aircraft that started decades ago. Continue reading The Importance Of In Depth Knowledge Of The PT6A For Effective Maintenance, Repair And Overhaul
Your TBO isn’t just about your safety; it is also about the resale value of your PT6A engine and aircraft. Your aircraft will not sell very quickly if your maintenance log books aren’t kept up to date. You want to have a reasonable amount of work done on your engine at all recommended intervals so that the next prospective owner knows that the airplane is in tip-top shape. Continue reading What Is An Aircraft Engine Light Overhaul?
An aircraft engine is literally the beating heart of an airplane, and an aircraft engine overhaul is the best way to keep the plane’s “heart” healthy and functioning smoothly. Environmental conditions are just some of the factors that can play a major role in wear and tear on an aircraft engine, and an overhaul helps address those issues as well as many others.
Aircraft Engine Overhaul
An aircraft engine overhaul involves removing, tearing down, cleaning, inspecting, repairing and testing all engine parts. The time between overhauls is determined by each aircraft engine manufacturer, based on a combination of the hours of service and the age of the engine. The average time between overhauls for most manufacturers is 2,000 hours.
Reasons for Aircraft Engine Overhaul
Aircraft engines function in less-than-friendly environmental conditions, with exposure to corrosive saltwater, dust, and dramatic climate changes—all of which can lead to internal corrosion. In addition, engines that are subject to short-term use often need more frequent aircraft engine overhauls as short-term use results in increased condensation. Engines in use for less than 40 hours per month will experience corrosion due to condensation, as the moisture does not evaporate off engine parts quickly enough. Engine components experience significant expansion and contraction due to extreme heat during operation and rapid cool down upon landing. Metal that is contracted and expanded often degrades, and parts break down due to friction.
Extend the Life of an Aircraft Engine
The most important reason to undergo an aircraft engine overhaul is that the procedure will extend the life of an aircraft engine. An aircraft engine overhaul keeps the engine running smoothly and extends the life of the aircraft significantly.
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The history of aviation is rich and colorful, with 13th century inventors trying to find a way for people to fly and the famous flight at Kitty Hawk. Today’s aviation has caught the same pioneering spirit evident in the Wright Brothers, Frederick Brant Rentschler, and William E. Boeing……..read more.
From the Wright Brothers’ historic flight at Kitty Hawk to today’s corporate jet, the history of aviation has grown tremendously over the past century. One of the leading aircraft manufacturers, Pratt & Whitney, and later United Aircraft Transport Corporation, developed today’s air-cooled radial engine with faster, safer and more easily-controlled aircraft………read more.
One of the most important requirements in owning an aircraft is understanding aircraft engine maintenance, so an aircraft engine overhaul may be necessary to keep an engine running like new. An overhaul consists of removing, disassembling, cleaning, inspecting and repairing an aircraft engine. Costs can run high with the extensiveness of an aircraft engine overhaul, thus it is important to know what to consider before choosing an overhaul company…………read more.
In our series of posts intended to demystify the aircraft engine overhaul process, we at Covington Aircraft want to detail the differences between using new and overhauled parts in an engine overhaul, so that you can make the best and most informed decision possible when TBO time comes around again……….read more.
The 38th Sun ‘n Fun Fly-In & Expo will begin on March 27 and run through April 1 , 2012. This annual event takes place at the Lakeland Linder Regional Airport (LAL), Lakeland, Fla., which is also the location of the Florida Air Museum. Located northeast of Tampa, this location is close to many other attractions in the central Florida region. If you have any interest in aviation, this is a great way to spend some early outdoor time, enjoying the great Florida springtime weather. The airshows alone are worth the trip, but that is only a part of what makes the Sun ‘n Fun Fly-in a great social event………….read more.
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Aircraft engine overhaul can significantly increase the resale value of an aircraft, but even more importantly, an overhaul can extend the life of an aircraft engine and make the aircraft safer to fly. Normal wear on the metal parts of an aircraft engine can lead to tolerance increases and poor performance, which could eventually lead to engine failure. In addition, an aircraft engine overhaul allows for mechanical inspection of the engine to diagnose an issue before it becomes a major problem………read more.
Looking for the perfect place to find parts for your aircraft engines ? Need maintenance on your aircraft’s engine? Is it time for an overhaul of your aircraft engines? If you answered yes to any of these questions, Covington Aircraft has just what you need. An authorized Pratt & Whitney Canada distributor and a certified FAA repair station, Covington offers outstanding customer service through their highly trained and qualified staff……read more.
When your aircraft engine needs servicing or maintenance, you want to make sure it gets the attention it deserves.
That’s one of the reasons Covington Aircraft created their aircraft engine repair Fly-In Facility.
Located just outside of Tulsa, Oklahoma on the Okmulgee, Oklahoma airport, the Fly-In Facility is nearly 50,000 square feet of state-of-the-art hangar space. The Hangars are designed to effectively service a variety of aircraft……..read more.
There is no denying that plane maintenance is one of the most critical aspects of plane ownership. In fact, the FAA places so much importance on plane safety that they require a thorough aviation maintenance and inspection process for every 100 hours that a plane is used for hire. For this reason, aircraft technicians must be highly skilled and demonstrate a keen attention to detail when it comes to aircraft maintenance…….read more.
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One of the most important requirements in owning an aircraft is understanding aircraft engine maintenance, so an aircraft engine overhaul may be necessary to keep an engine running like new. An overhaul consists of removing, disassembling, cleaning, inspecting and repairing an aircraft engine. Costs can run high with the extensiveness of an aircraft engine overhaul, thus it is important to know what to consider before choosing an overhaul company.
Aircraft engine overhaul is always required – this is one of the most important things to remember. Based on the Time between Overhaul (TBO), every aircraft engine must be removed, dismantled, checked and repaired as necessary. The engine, after being reassembled, is reinstalled in order to remain in service. For most engines, the TBO is 1,800 to 2,000 hours, which means many years between overhauls for a plane not flown often.
Asking an aircraft engine overhaul facility whether the work will be outsourced or done on-site is advised. A company that outsources the overhaul, even if it is a segment of the work, loses quality control over service completion. Therefore, be sure the facility you choose performs the work in-house.
Costs of an engine overhaul should be quoted based on the type of aircraft serviced and the time passed since the last overhaul. Price can also vary on which series of overhaul the customer requests. Facilities should not offer a “one-size-fits-all” price for aircraft engine overhauls.
The time for completing an aircraft engine overhaul depends on the type of aircraft and the series of overhaul requested. On average, an aircraft engine overhaul can take between two and three weeks, depending on the engine’s status and any approval delays from the customer for additional repairs.
When choosing a facility to perform an aircraft engine overhaul, it is important to look at what the price actually includes. A good facility should be able to give you a rough estimate of the time needed, inform you if outsourcing is required, and give you a cost estimate based on the type of aircraft and the series of overhaul desired. For more information on aircraft engine overhaul, join our online community on Facebook, Twitter and YouTube.
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Aircraft engine overhaul can significantly increase the resale value of an aircraft, but even more importantly, an overhaul can extend the life of an aircraft engine and make the aircraft safer to fly. Normal wear on the metal parts of an aircraft engine can lead to tolerance increases and poor performance, which could eventually lead to engine failure. In addition, an aircraft engine overhaul allows for mechanical inspection of the engine to diagnose an issue before it becomes a major problem.
Extend the Life of Your Engine
One of the most important reasons for aircraft engine overhaul is that the process extends the life of the engine, much as a tune-up extends the life of a car engine. Aircraft engines are subjected to rapid heating and cooling during and after a flight and this can put stress on the engine parts. Lubrication is necessary to avoid metal-to-metal contact that can damage engine parts and create an unsafe flying experience. By performing aircraft engine overhauls as recommended by the engine manufacturer, the life of the plane engine can be extended significantly.
After an aircraft engine overhaul, many owners report a significant increase in performance, with the most notable improvement in engine vibration. An engine overhaul allows the mechanic to analyze the various moving parts in the engine in order to adjust any out-of-balance internal parts. The adjustment reduces engine vibration and improves thrust output.
Another important reason to perform regular aircraft engine overhauls is that it increases the resale value of an aircraft. In fact, engine overhauls have been specifically listed in aircraft evaluation books at an increased value over planes that have not had an overhaul. There are several lenders that add the full retail cost of an aircraft engine overhaul to the appraised value of an aircraft. This further confirms that an overhaul of your aircraft engine can significantly increase the resale value of the aircraft.
Safety should be the prime factor in performing regular aircraft engine overhauls, but the fact that an aircraft offers better performance and significantly higher resale value are also excellent reasons for overhauling an aircraft engine. If it’s time for an aircraft engine overhaul, reach out to Covington Aircraft. We maintain, overhaul, and sell turbine and radial engines. Call us at (918) 756-8320.
Call (918) 932-3993 to schedule a light overhaul , fill out our form to the right of this blog post, or visit our website at www.covingtonaircraft.com.
The Covington Light Aircraft Engine Overhaul is a repair alternative to a typical overhaul that focuses on the most crucial parts of a PT6A engine and can add up to 2500 more hours beyond TBO. Keeping with Covington’s tradition of providing the best maintenance at the best price, the Covington Light Overhaul costs about half of a regular overhaul.
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As a final installment in our series of posts intended to demystify the aircraft engine overhaul process, we at Covington Aircraft want to detail the differences between using new and overhauled parts in an engine overhaul, so that you can make the best and most informed decision possible when TBO time comes around again.
When you’re looking to get an engine overhaul, a key point to remember is that the FAA does not require that all parts need to be replaced with brand new OEM equipment. While it is an accepted practice to replace parts such as pistons, rings, bushings, seals and gaskets, it’s also an accepted practice to reuse internal steel parts like connecting rods, the crankshaft, pushrods, gears and drive shafts, among others.
Testing and replacement
Even if they are reused, all non-new parts are carefully inspected and checked for cracks or defects via non-destructive testing techniques like Magnaflux and dye-penetrant tests. If a part fails to meet specified dimensional limits—either new limits or service limits, depending on the type of overhaul you’ve requested—it will be immediately rejected and replaced, regardless of the owner’s preference on the matter. The downside of this replacement is that some components come in matched sets, which means that a damaged single Planet gear may require the replacement of all Planet gears.
To overhaul or not to overhaul your parts?
When getting an engine overhaul, it can be difficult to decide if you should overhaul your existing cylinders or just replace them with new ones. New cylinders, if available, cost more than overhauling the cylinders you’ve already got. If your existing cylinders don’t have much wear, then it’s probably perfectly acceptable to get them overhauled and reinstalled. Remember that an overhauled cylinder still gets a new cylinder barrel choke and cylinder barrel honed finish, and the guides and seats are refurbished or replaced.
If you’re interested in further information on aircraft engine overhauls for turbine or radial engines, please let us know. We welcome questions and e-mails, and always strive to provide the best service possible to all our customers.
This is the first post of two in our efforts to educate aviation enthusiasts, aircraft owners, and business fleet aircraft managers on the terminology of an aircraft engine overhaul. If you are in need of maintenance or overhaul for your radial or turbine engine, make sure you visit Covington Aircraft’s website for more information!
When TBO time rolls around, are you ready to speak and understand the language enough to make an informed decision?
Parents everywhere tell their children, “Read everything before you sign it.” What good is this advice if you have no understanding of what you are reading? Sure, many things are intuitive, but a clear understanding of what is offered for services further ensures that you will get value for your dollar. The following is a listing and discussion of what various terms mean when it comes to aircraft engine overhaul. You may not know how to check the free-play on a valve tappet after reading this, but at least you should know your O.E.M from aftermarket enough to discuss your options.
Terms that are used and approved by the FAA.
A new engine is one that has been manufactured from all new parts and tested by an FAA-approved manufacturer. The engine will have no operating history except for test cell time when received. No FAA-approved manufacturer can approve another entity to manufacture or assemble a NEW ENGINE.
These are the FAA-approved fits and clearances manufacturers adhere to with new engine. This may be accomplished using standard or approved undersized and oversized dimensioned parts.
The service limits are the FAA-approved allowable wear fits and tolerances to which a new limit part may deteriorate and still be a useable component. This may also be accomplished using standard and approved undersized and oversized dimensions.
An engine that has been disassembled, cleaned, inspected, repaired in accordance with manufacture overhaul instructions and tested using FAA-approved procedures. The engine may be overhauled to new limits or service limits and still be considered an FAA-approved overhaul. The engine’s previous operating history is maintained and it is returned to you with zero time since a major overhaul and a total time since new. Of course, the total time since new is the same as before the overhaul.
This is an engine that has been overhauled using new and used parts to new limits by the manufacturer or an entity approved by the manufacturer. The engine’s previous operating history is eradicated, even though the engine may have used components installed that have many hours of operating history, and it comes to you with zero hours total time in service
O.E.M. and AFTERMARKET:
When an engine is overhauled or rebuilt, the new parts that are used during the repair process can come from a variety of sources. An “O.E.M.” part is a new part that is manufactured by the original engine manufacturer to stringent FAA standards. An “aftermarket” part is a new part that is manufactured by someone other than the original engine manufacturer and meets or exceeds the same stringent FAA guidelines as a new O.E.M. part.
So, now you know enough to be dangerous! However, put your aircraft engine overhaul into the hands of the experts who have performed thousands upon thousands, either at the Hangar in Okmulgee, OK or wherever you are located, and give Covington Aircraft a call today! Next week we will go over some other aircraft maintenance terminology. Happy Flying!