The History of And Types of Air Tractor Aircraft Powered by P&W Engines

Air Tractor is a leading manufacturer of purpose-built aircraft for agricultural, firefighting and a variety of utility applications. From North, South and Central America, to Australia, Indonesia, and China to Spain, Italy, Croatia and Africa, Air Tractor aircraft can be found in more than 30 countries around the world and are supported by a global network of Air Tractor dealers.

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The Perils of Having an Oil Starved PT6A & What To Do About It

Sometimes things happen!  It’s not very profound, but it is very true.  Engines suffer through prop strikes, wire strikes, hot starts and hard landings.  Frequently, post incident inspections reveal minor damage and the engines are repaired and returned to service promptly.  Recently, engines have been brought to Covington for investigation because “things” have happened to them.  One was a reported incident of a starter/generator arcing.  The starter/generator malfunctioned and was replaced.  While the maintenance appears to have been performed properly, “things” still happen.  Here is what we found upon disassembly:

oil starved PT6a

An indication of electrical discharge was noted from the starter gear and all through the accessory gearbox. The #1 bearing failed, which in turn allowed the compressor to shift causing a severe rub of the compressor components and the compressor turbine blades. Another engine suffered from oil starvation:

Another engine suffered from oil starvation:

PT6A oil starved

And a third engine had a failure in the turbine area:

pt6a oil starved 2

Even though the engines pictured here suffered from in-flight shutdowns, all of the aircraft were able to land safely and all pilots walked away.

Although we understand that “things” happen, we don’t want them to happen to you.  If they do, we will work with you no matter where your previous maintenance was done, to ensure that you have a rental/replacement engine as quickly as possible to keep you flying.  Remember to be aware of changes in your engine or events that could cause damage.  Pay attention to the way it sounds (blade rubbing), looks (metal or debris in oil), smells (oil burning) and feels (vibrations) along with watching the gages.  You may be able to detect a problem before some ”thing” happens to your engine.

Need to have a certified expert look at your PT6A engine? Founded in 1972, Covington Aircraft is a world-leading aircraft engine maintenance, repair and overhaul facility specializing in the PT6A turbine engine and R-985 and R-1340 radial engines. We are a Pratt & Whitney Canada certified Distributor and Designated Overhaul Facility (DDOF), and provide world-class corporate and agricultural aircraft service.

Request maintenance by visiting here >>>> http://www.covingtonaircraft.com/contact-us/request-maintenance 

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Pilot Report: The PT6A Powered Piaggio Avanti Evo

The P.180 Avanti Evo has a “wow” factor that is not present with many other twin turboprops of a similar size. Yes, it does have three lifting surfaces, a T-tail and two pusher propellers but it’s how they are put together that is the important thing. The forward wing (not to be called a canard, as it has no moving flight controls other than forward flaps) is positioned on the underside of a gracefully sweeping nose and is home to two pitot tubes underneath and, unusually in Western types, has a significant anhedral.

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Becoming a Missionary Pilot or Mechanic

Haiti Mission by Missionary Aviation Fellowship
Haiti Mission by Missionary Aviation Fellowship

If you are interested in becoming a missionary pilot or mechanic, you will need to meet a set of criteria. Aviation training and education is necessary and quite expensive. Those with significant debt will be challenged to qualify for the field. Let’s take a look at what is required to become a missionary pilot or mechanic.

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Acorn Welding receives approval on exhaust stacks for DHC-6 Series Twin Otter

Acorn Welding Ltd has received STC approval from Transport Canada on new, next generation exhaust stacks for the DHC-6 Series Twin Otter Aircraft. This STC utilizes modern streamlined exhaust stacks developed in house by Acorn Welding that have been optimize for maximum recovery of loss from the PT6A family of engines.

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Ground Engine Testing Begins On SkyCourier Prototype

Textron Aviation announced on Monday that it has successfully completed initial ground engine tests on the prototype of its Cessna SkyCourier twin-engine turboprop. According to the company, initial testing covered verifying fuel systems and engine function along with avionics and electrical systems interfaces. The SkyCourier is powered by Pratt & Whitney Canada PT6A-65SC engines.

“The successful engine run tests are a pivotal step toward proving the maturity of the aircraft and its systems as we prepare for first flight,” said Textron Aviation Programs and Engineering Senior Vice President Chris Hearne. “We continue to meet each important milestone in our development schedule, and we look forward to having an outstanding aircraft for our customers.”

As previously reported by AVweb, the SkyCourier prototype was fitted with its wings last December. The aircraft is expected to have a range of 900 NM, 6,000-pound payload and maximum cruise speed of up to 200 knots. It will be equipped with the Garmin G1000 NXi avionics suite and is designed to seat up to 19 passengers or carry three standard LD3 air cargo containers.

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The PT6A Powered Beechcraft King Air 250

Beechcraft King Air 250 is a highly advanced turboprop business aircraft developed by Textron Aviation.

The aircraft secured type certification from the Federal Aviation Administration (FAA) in June 2011. It also received similar certification from the National Civil Aviation Agency of Brazil (ANAC) in the same year. The European Aviation Safety Agency (EASA) certified the aircraft in April 2012.

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