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Contact Us

Have a sales or service question?  We'd love to hear from you. Give us a call or fill out the webform and we'll get back to you as soon as possible. Hablamos español y  portugués.
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439 N. West Rd

Wellington, KS 67152

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Engine Upgrades


Custom Avionics

Aircraft Parts

Custom Fabrication

Other Upgrades

Our Services

Air Plains Services continues to be the leading expert in Cessna aircraft. We specialize on engine upgrades, FAA-PMA parts fabrication and continual airworthiness of your aircraft. Our skilled technicians can upgrade your avionics and perform maintenance at affordable prices. With our commitment to apply new technologies and know-how, we continue to offer performance and improvements to more aircraft owners.

Cessna 172


Models B thru R

Cessna 180


Models thru K

Cessna 182


Models H thru R

Cessna 182RG


All Models

Cessna 182


Models S and T

Cessna 182RG


All Models



All Models

STC Upgrades

Our goal is to make your aircraft unique with our STC upgrades. We have designed our products to deliver the performance needed to add more pleasure to your flying.  We are committed to provide guidance along the way with excellent customer service and support with FAA-PMA parts to maintain the continual airworthiness of your aircraft.

Year Established

Approved STCs

Engine Upgrades

PMA Parts









Customer Support

Our most current documents are available for download below. Check back often to make sure you have the latest revision of the files. Under installation support you will find additional help and tips as it relates to our engine upgrades and aircraft maintenance in general.

Besides customer satisfaction, one of our main goals is to provide continual airworthiness to your aircraft. We are never done adding more features to the upgrade kits. This is why we fabricate our FAA-PMA parts in-house. We are able to reduce cost significantly and provide a product that meets our kit quality standards. We are here to provide future support in your maintenance.

About Us

Mike Kelley started doing aircraft maintenance in 1977 in a hangar on Wellington’s municipal airport, hanging out his shingle as Air Plains Services, a nod to both the Great Plains of southcentral Kansas and the region’s reputation for aviation. Just a few miles north is Wichita, home to aviation legends Clyde Cessna, Walter Beech and Lloyd Stearman and known today as the Air Capital of the World. It wasn’t long, though, before Kelley and his wife, Carolyn, turned a passion for flying and for innovation into an industry leader as an airplane transformer, turning legacy Cessna pistons into power singles with STCs for Extreme Performance engine upgrades. Forty-five years later, the company still ranks as the leader in engine upgrade STCs and has added a wide range of avionics upgrades, propeller STCs, PMA parts, specialty manufacturing, interiors, and, of course, full aircraft maintenance.

“The performance of my C-180 after the Engine Upgrade has far exceeded my expectations! The interior and avionics installation are works of art, as well. However, it was the people at Air Plains that made a major undertaking a pleasurable experience.”

Kyle, AZ

C-180 300HP

“I really wanted more power and the Air Plains upgrade has it. We’re getting a big increase in speed and 1000fpm climb rate, and we’re really pleased with the gas consumption. Air Plains is just so easy to deal with and I love great value in service!”

Jeff, OK

C-172 180HP

Airplains took my inquiry from Europe very serious and they have delivered an outstanding job and service. The 300HP engine has taken me safely three times over the North Atlantic. I can well use that power here on small strips and in the mountains in Switzerland

Alfred, CH

C-182 300HP

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