1893 Airport Rd, Kalispell, MT 59901

FUll STC'd Modifictions

Piper Apache, Aztec & Geronimo STC'd & Do-It-Yourself Kits


Diamond Aire Kalispell Piper Customization and Modification Apache Aztec Geronimo

FAA Approved Piper Modification STCd Aztec Apache GeronimoFAA APPROVED PMA FACILITY

With the average cost of a new twin engine aircraft starting at $750,000, it is most economical to consider upgrading an existing aircraft for just a fraction of the cost.

(Discounts are available for AOPA members and FBOs)

Piper Panel Upgrades, Modifications, Customizations

Piper Panel Upgrades

Approved for Aztec, Apache & Geronimo aircraft, this one-piece design eliminates cockpit display clutter and is shock-mounted to isolate full panel. Several panel styles include back-lighting or post-lighting, engine instrumentation and radio configuration options. Dual centerstack design with option for copilot instruments.


Piper Panel Upgrades, Modifications, Customizations

Piper Performance Upgrades

We have upgrades for speed-slope windshields, nose cones, throttle controls, Dorsal Fins, Wing Tips, Window Kits, Soundproofing, Control Panels, Airframe inspection, overhauls and more. Our Piper upgrades add significant stability, performance, soundproofing and safety to both the Aztec, Apache and Geronimo aircrafts.


Piper Panel Upgrades, Modifications, Customizations

Piper Conversions

Whether you are an individual looking for a reliable, spacious business class aircraft or aflight school looking for an economical, sturdy multi-engine trainer, the versatile Piper Geronimo can meet all your needs. For more information on some of the modifications that can be done to this proven aircraft view our price guide.

Piper modifications


Diamond Aire Kalispell Piper Apache Aztec Geronimo Upgrades Kits Modifications Panels

Montana Diamond Aire Inc.
Apache Modification Aircraft Corp

Call: 406-752-5092
Fax 406-752-5082

1893 Airport Road
Kalispell, MT. 59901