Our Companies

Keystone Turbine Services

PAG Engine Services

Keystone Turbine Services, a Precision Aviation Group (PAG) Company, is a full-service gas turbine engine repair and overhaul facility
located in Coatesville, PA. Keystone is a factory-authorized Rolls-Royce M250 Authorized Maintenance, Repair and Overhaul Center (AMROC),
Honeywell Authorized Warranty & Repair Station (AWARS) 
for M250 and LTS101 related accessories, as well as Turbomeca Arriel and Pratt & Whitney gas turbine engine products.

PAG provides MRO and Supply Chain Solutions for Fixed- and Rotary-wing aircraft. PAG has MRO and manufacturing capabilities in four MRO segments – Avionics, Components, Engines and Manufacturing/DER Services. PAG is dedicated to keeping mission critical, business, military, and defense operators in the air.

Digital, Full Data Capture, Correlated & Certified Test Cell for all M250
Series Engines and Modules

Global Field Service Support & On-Site Training

Full Complement of Rental and Exchange Engines, Modules and Accessories

Engine Repair/Overhaul
Award-Winning Rolls-Royce Certificated Authorized Maintenance, Repair & Overhaul Center (AMROC) for all M250® Series Engines, Modules, Accessories and Components

Turbomeca Arriel 1 & 2 Series Level I & II Capability

For all of our companies and locations

Additional Capabilities

Digital, Full Data Capture, Correlated & Certified Test Cell for all M250 Series Engines and Modules

Machine Shop Capabilities Including:

  • Specialized Welding & Heat Treat
  • Machining, CNC Lathe, Boring, Grinding
  • Paint & Corrosion Control
  • Plasma Thermal Spray (Wire & Powder)
  • Turbine Nozzle Flow Check & Adjust
  • Static & Dynamic Balance of Rotating Components
  • Repair Process Development

Global Field Service Support & On-Site Training

Certified Level 2 & 3 Non-Destructive Test

Rolls-Royce M250 TotalCare®

Local Contact Information


885 Fox Chase, Suite 111,

Coatesville, PA 19320


(610) 268-6200



Shipping & Receiving address

Keystone Turbine Services LLC
885 Fox Chase, Suite 111
Coatesville, PA 19320
Attention: Robby Wallace
Office: +1(610) 268-6200 ext. 3602
Email: rwallace@kts-aero.com

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