Category Archives: PT6A

A Look at the Ayres Thrush S2R Series

The S2R Series is a fixed undercarriage low-wing single-engine tailwheel configuration agricultural aircraft of all-metal construction with the welded steel-tube fuselage. The hopper is located forward of the cockpit, and the aircraft is available in single or dual (tandem) cockpit configurations. The S-2R model was developed by Rockwell from the S-2D by widening the fuselage from 38” to 46” to accept a larger 400 US gallon hopper, to be able to carry a greater volume of low-density materials used by Rice growers, and adding flaps.

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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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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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The PT6A Powered Embraer EMB-110 Bandeirante

The success of the first two prototypes of the EMB 100, built by the team of the then CTA (Technical Aeronautics Center) under the leadership of Ozires Silva, gave the engineers the challenge of mass production and commercialization of the aircraft. As such, the Federal Government officially created Embraer on August 19, 1969.

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King Air 350 Gets New Nose

Textron Aviation has introduced a new utility nose option for the Beechcraft King Air 350 turboprop. The new nose adds 12 cubic feet of storage space capable of holding up to 250 pounds of additional payload. The utility nose can be used on King Air 350 variants including the 350C cargo version and 350ER extended-range model. The modification is FAA-certified and compatible with both the PT6A-60A and PT6A-67A engines.

Via Textron Aviation

“This modification is a response to customer interest in optimizing the flexibility of our King Air 350 platform—equipping the aircraft with additional space for baggage or for special mission applications—and increasing loading configurations,” said Textron Vice President of Defense & Special Missions Sales Bob Gibbs. “The Beechcraft King Air offers the widest range of mission capabilities of our broad product lineup, and we remain committed to continuously enhancing the platform to ensure our customers have the capability to succeed, no matter the mission.”

According to Textron, more than 7500 King Airs have been delivered since the model’s introduction in 1964. Over the last 55 years, the King Air fleet has logged more than 60 million flight hours.

FAIRFORD, ENGLAND – JULY 2018: Close up view of the engine and propellor blades of a Raytheon Textron Aviaition King Air 350 turboprop aircraft

About the Beechcraft King Air turboprop

More than 7,500 Beechcraft King Air turboprops have been delivered to customers around the world since 1964, making it the best-selling business turboprop family in the world. The worldwide fleet has surpassed 60 million flight hours in its first 55 years, flying business missions ranging from traditional passenger and cargo transport to electronic and imagery surveillance, air ambulance, flight inspection, photographic mapping, training and weather modification

Via Textron Aviation.

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Textron Marks 500th Grand Caravan EX Delivery

The Cessna Grand Caravan EX utility turboprop single entered service more than six years ago, and Textron Aviation has delivered its 500th copy, the company announced yesterday. Certified in 2013, it is the third variant of the successful Caravan line first introduced in 1986, but with a more powerful Pratt & Whitney Canada PT6A-140 engine that improved its rate of climb by 38 percent over its predecessor.

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