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The Full Story

About Us

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South Mountain Aviation, is the go to aircraft maintenance and avionics shop in the Mid-Atlantic region. We are based in Hagerstown, Maryland at the Hagerstown Regional Airport (KHGR). South Mountain Aviation, not only will service and maintain Gulfstreams, Globals, Hawkers and Citation Jets but sells, installs, maintains and repairs avionics systems for general aviation aircraft, including business jets, twin turboprops and single-engine piston airplanes. Staffed with the industry experience and expertise from on-the-job training to factory training from Textron Aviation, Williams International and Cirrus Aircraft to name a few.

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Ian Terry

Airframe & Powerplant License 23 years

Inspection Authorization

Designed and wrote manuals for 2 FAA Part 145 Repair Stations before starting South Mountain Aviation w/ Jayce Keefer

Williams International FJ44 Series Factory Trained

Beechcraft Premier Trained

Cirrus Aircraft Maintenance, Avionics and Composite Repair Factory Trained

Cessna Conquest II 441 with TPE331 engine rigging

Cessna HPSE Factory Trained

10 years with an authorized service center for Cessna and Cirrus aircraft as a maintenance and avionics technician that was also a dealer for Garmin, Honeywell, Avidyne, S-Tec, Collins, and many more.

Performed nearly 1,200 FAR 91.411/91.413 & RVSM Inspections to date

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Jayce Keefer

Visionary co-founder of South Mountain Aviation

Airframe & Powerplant License

Cessna 525 Series Factory Trained

Williams International FJ44 Series Trained

Cessna Conquest II Trained

AEA Trained in FAR 91.411 & 91.413 Pitot Static Checks

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