5 Quick Tips For Servicing Your Engine’s Oil System

This article originally appeared on the P&WC Airtime Blog.

Our expert shares 5 oil maintenance best practices that will help give you a clear picture of your oil status and keep your engine performing optimally.

1. RESPECT THE MIN AND MAX LEVELS

If your engine oil is at a level below the minimum, the oil supply during operation may be insufficient. Conversely, a level that exceeds the maximum may impede proper operation of the air/oil separator or breather, leading to possible bearing seal distress and loss of oil through the engine breather tube.

An oil level that’s too high or too low could also result in oil pressure fluctuations, low-pressure indications and engine damage.

2. MONITOR OIL USAGE OVER AT LEAST 10 HOURS

To perform engine oil system servicing effectively, you should continuously monitor your oil consumption. Careful monitoring will give you advance warning of abnormal oil consumption allowing you to carry out preventive troubleshooting.

PT6A

For more accurate results, we recommend recording oil consumption data over at least 10 hours of accumulated flight time and plotting the data for oil consumption trend analysis. This will give you a more realistic portrait of your engine’s functioning.

On a related note, be wary of oil level readings taken when the aircraft is parked on uneven ground, since they may not be accurate.

Aircraft attitude may affect engine oil level readings, especially in the case of helicopters, which land on all kinds of uneven surfaces. You shouldn’t use readings taken when the aircraft is resting at an angle.

ANDRÉ GALLANT, TRAINING SPECIALIST, FIELD SUPPORT OFFICE

3. ALWAYS PERFORM SERVICING AT THE DESIGNATED TIME

Always check and service your engine oil system at the same time, based on the instructions in the engine maintenance manual. Typically, the designated time is around 15 to 30 minutes after shutdown. This is fundamental to obtaining reliable and accurate oil consumption trend data. If you wait longer than the indicated time to check the oil level, it may affect the readings, since hot oil in a still-warm engine has more volume than cold oil.

Checking the level as recommended by the engine maintenance manual can also help you identify issues. For instance, if you checked the oil level shortly after shutdown, then come back the next morning and notice that it’s notably lower, internal static oil transfer may have occurred overnight.

In a situation like this, do not simply refill the oil tank. If you do, there may be too much oil in the system and it could overflow via the engine breather. Perform troubleshooting instead to resolve the matter. On a PT6A engine, the cause could be a leaky oil filter check valve.

4. USE THE SAME LEVEL EVERY TIME

Likewise, you should always service your oil system to the same level. If you fill the oil tank to the maximum one day and to the minimum the next, it could skew your data. No matter what the oil level indicator configuration is, we recommend always servicing your engine oil system to a level somewhere between the minimum and maximum.

If you keep your oil levels at the maximum all the time, it could increase your oil consumption rate, since some oil has a tendency to exit through the engine breather. This could even happen at one or two quarts below the maximum, so you should adjust accordingly and service the oil system to a level where consumption is acceptable.

ANDRÉ GALLANT, TRAINING SPECIALIST, FIELD SUPPORT OFFICE

5. USE THE RIGHT DEVICE AND OIL

When topping up your engine oil tank, be sure to use an appropriate filling device such as a funnel or fluid servicing cart with the appropriate attachment. Using the wrong device could lead to spills and leakages, as well as an inaccurate oil usage recording.

You should also exercise caution when inter-mixing different brands or types of oil and always follow the recommendations in the applicable engine maintenance manual and oil service bulletin. When permitted, switching to another kind of oil might require additional maintenance, such as oil analysis and filter inspection, paying attention to carbon deposits. As different oils may have different properties. And in some situations, such as engines that have accumulated a lot of hours, switching oil type may be prohibited.

The best thing you can do is to stick with the same brand and type of oil. If you have to change, always check the applicable engine maintenance manual and oil service bulletin first to see whether you can and what oil brands and types are acceptable.

ANDRÉ GALLANT, TRAINING SPECIALIST, FIELD SUPPORT OFFICE

Putting these handy tips into practice while also following the standard procedures in your maintenance manual will allow you to maintain a normal main oil pressure during engine oil system servicing.

With the help of P&WC’s new Oil Analysis Technology –which is 100 times more sensitive than other oil monitoring technologies on the market –your engine oil can also provide you with insights into the health of bearings, gears, carbon seals and other engine parts. By analyzing data taken from periodically collected oil samples, this technology monitors engine health on wing and supports predictive and preventive maintenance without intrusive inspections. To learn more, check out Oil Analysis Technology Makes Proactive Maintenance Easier.

Share and Enjoy

  • Facebook
  • Twitter
  • Delicious
  • LinkedIn
  • StumbleUpon
  • Add to favorites
  • Email
  • RSS

Cessna SkyCourier development progresses with prototype assembly underway

Textron Aviation Inc has announced new milestones in its Cessna SkyCourier twin utility turboprop development program, with assembly underway for the prototype aircraft and the additional five flight and ground test articles. Component testing also continues for the new propeller, nose landing gear, and fuel system.

“When we began designing and developing the Cessna SkyCourier, we engaged a number of mission-centric customers for technical input to best meet their unique needs in one platform,” said Chris Hearne, senior vice president, Engineering.

“We are building this aircraft with the flexibility and reliability needed for a variety of high-utilization operations including cargo, passenger or special missions and we are excited that the customers and the market are responding positively to its capabilities.”

Endurance and functional testing for the new McCauley 110-inch propeller consists of nearly 150 hours of operation and includes a variety of simulated flight profiles. The propeller is mated with the proven PWC PT6A-65B, 1100-shp engine, mounted on a test stand. Simultaneously, assembly of the fuel system test article and nose landing gear drop test article is underway, with testing to start later this month.

The Cessna SkyCourier is the latest clean-sheet design from Textron Aviation and will be offered in various configurations including cargo, passenger or a combination of both, all based on a common platform to meet the needs of a wide range of customers.

The cargo configuration is designed to accommodate three standard air cargo containers (LD3) with a payload of up to 6,000 pounds while the passenger version carries up to 19 passengers.

FedEx Express, the world’s largest express transportation company and longtime Textron Aviation customer, signed on as the launch customer in late 2017 for up to 100 aircraft, with an initial fleet order of 50 cargo aircraft and options for 50 more.


Share and Enjoy

  • Facebook
  • Twitter
  • Delicious
  • LinkedIn
  • StumbleUpon
  • Add to favorites
  • Email
  • RSS

Air Tractor Releases 800th Aircraft in AT-802 Series

Olney, Texas aircraft manufacturer Air Tractor, Inc. passed a major production milestone with the recent delivery of the 800th aircraft in the AT-802 series. The 800-gallon capacity airplane, Air Tractor’s largest, took off from Air Tractor on a northeast heading toward its new home in Arkansas to work as a single engine air tanker.

Continue reading Air Tractor Releases 800th Aircraft in AT-802 Series

Share and Enjoy

  • Facebook
  • Twitter
  • Delicious
  • LinkedIn
  • StumbleUpon
  • Add to favorites
  • Email
  • RSS

Mike Patey’s DRACO – The Coolest STOL Aircraft Ever

What happens when you put the legendary Pratt & Whitney Canada PT6A on one of the most versatile of all bush planes? Mike Patey’s Draco, that’s what. And, woah, is it a BEAST!

The race-winning STOL aircraft is the winner of the 2018 High Sierra STOL Drag competition.

Brainchild of self-taught engineer and successful entrepreneur Mike Patey, Draco is the ultimate backcountry airplane. With its bright red skin, tall legs and heavy cloud of dust around it, Draco commands attention everywhere it lands. If you don’t happen to see it, you hear it; it’s one of the few bush planes with a turbine engine and reverse thrust, and the whine of the turboprop comes unexpectedly to unsuspecting observers.

Mike Patey’s DRACO at the Great Alaskan Aviation Gathering.

Mike Patey put a PT6A-28 680 shaft horsepower and 102” four bladed prop on the front of the last Wilga ever built. With an empty weight of 2400 lbs and a typical flying weight of 3000 lbs, Mike can be off the ground in about 120 feet, pitch to 30 degrees and maintain 4,000 feet per minute… while accelerating 50+ mph by 1,000 feet! He designed a completely new airfoil that dropped the stall speed about 20 mph to about 37 mph.

What’s even crazier is he uses about 300 HP of reverse to bring it to a stop in 150 feet but says that number will decrease once he gets more than a week of flying it under his belt. Also, it has oxygen and can go to 28,000 feet at 200 knots TAS at 28 gph at half power for Vne constraints. (Source: @super_cubbin)

If you haven’t seen the Draco, we highly encourage you to check out this amazing video from Trent Palmer below.

Sourced from Hangar.Flights.

Share and Enjoy

  • Facebook
  • Twitter
  • Delicious
  • LinkedIn
  • StumbleUpon
  • Add to favorites
  • Email
  • RSS

A Look at the PT6A-15AG Powered Air Tractor AT-402B

With the AT-402B, Air Tractor’s goal was to combine turbine power with affordability. You get both and more. It’s quiet, powerful, and fun to fly, even at the end of a long day.

The Turbine Advantage

The AT-402B is Air Tractor’s entry-level turbine ag plane, ideal for first-time turbine owners. With its legendary PT6A-15AG turbine engine, the 402B offers the power and superb handling characteristics that make it a joy to fly and the productivity that makes profits. Quick turn times, superior visibility, faster ferry speeds, ultra-quiet engine, shorter loaded take-off distances, faster climb and cruise speeds, wider spray patterns, decreased fuel and maintenance costs — get it all with the 402B. It all adds up to a healthier bottom line for your business.

AT-402B Specifications

Engine Type:P&W PT6A-15AG
Engine SHP:680 @ 2200 RPM
Propeller:Hartzell HC-B3TN-3D/T10282N+4
Take-off Weight:9,170 lbs (4.159 kg)
Landing Weight:7,000 lbs (3.175 kg)
Empty Weight with Spray Equipment:4,299 lbs (1.950 kg)
Useful Load:5,150 lbs (2.336 kg)
Hopper Capacity:400 US gal (1.514 L)
Fuel Capacity:170 US gal (644 L)
Wing Span:51 ft (15,54 m)
Wing Area:306 sq ft (28,45 m²)
Main Wheel Size:29.00 x 11-10
Tail Wheel Size:5.00 x 5

AT-402B Performance

Cruise Speed at 8,000 ft (2.438 m):162 mph (141 kts)
Working Speed (Typical):120-140 mph (104-122 kts)
Range – Economy Cruise at 8,000 ft (2.438 m):660 mi (1.062 km)
Stall Speed – Flaps Up:77 mph (66 kts) at 7,000 lbs (3.175 kg)
Stall Speed – Flaps Down:66 mph (57 kts) at 7,000 lbs (3.175 kg)
Stall Speed as Usually Landed:53 mph (46 kts)
Rate of Climb:800 fpm at 8,600 lbs (3.901 kg)
Take-off Distance:975 ft at 8,600 lbs (3.901 kg)

AT-402B Dimensional Drawings

Share and Enjoy

  • Facebook
  • Twitter
  • Delicious
  • LinkedIn
  • StumbleUpon
  • Add to favorites
  • Email
  • RSS

Daher introduced turboprop business jet TBM 940

The French aircraft manufacturer Daher presented the next iteration of high-speed single-engine turboprop aircraft of the business class of the popular line TBM 900. 28 years after the start of production of the first generation of airplanes – the TBM 700, the aircraft family was replenished with a new member – the TBM 940.

Continue reading Daher introduced turboprop business jet TBM 940

Share and Enjoy

  • Facebook
  • Twitter
  • Delicious
  • LinkedIn
  • StumbleUpon
  • Add to favorites
  • Email
  • RSS

[VIDEO] Blackhawk: The World’s Fastest King Air

The Blackhawk-upgraded King Air 350 features Pratt & Whitney Canada PT6A-67A engines, producing 1,050 SHP up to 25,000 feet, while stock King Air 350 engines begin losing horsepower at 15,000 feet. Paired with two 5-blade natural composite MT Propellers with spinners, the complete upgrade transforms your Super King Air into a real Super Hero.

Via FlyingMag.com

“This truly is the Greatest King Air that I have yet had the pleasure to operate.”
Renowned flight instructor and author of “The King Air Book” Tom Clements after flying an XP67A-powered King Air 350.

Program updates:

  • G1000 NXi compatibility is approved and a number of installations are underway!
  • Going to the King Air Gathering in Fredericksburg, Tx September 27-29? We’ll be there along with an upgraded 350! More info can be found here: http://www.kingairgathering.com/
  • EAA Airventure at Oshkosh was a great success with the launch of the King Air 300 program and strong interest in the 350 we had on display which is now sold.
  • Want to hear directly from operators that are flying the XP67A? Contact me and I can provide you a full contact list for the aircraft that are flying it!
  • Wondering about resale value? 7 of our first 20 conversions have been done by aircraft brokers upgrading because it increased the value of the aircraft!
  • Pratt & Whitney was recently able to accelerate deliveries so we currently have engines available, contact us to ensure we have engines available to meet your schedule.

Via Blackhawk.aero.

Share and Enjoy

  • Facebook
  • Twitter
  • Delicious
  • LinkedIn
  • StumbleUpon
  • Add to favorites
  • Email
  • RSS