Our Companies

PAG Engine Services –

Dallas, TX / Phoenix, AZ / Pittsburgh, PA

AVIONICS – COMPONENTS – DISTRIBUTION – ENGINES – MANUFACTURING/DER

Maintenance, Repair, Overhaul (MRO) Services

PAG is dedicated to keeping mission-critical business, military, and defense operators in the air. We support fixed-wing and rotary-wing fleets with integrated maintenance and lifecycle solutions designed to extend service life, lower overhaul costs, and maintain operational readiness.

Rely on PAG for:

  • Fixed- and rotor-wing aircraft maintenance and MRO services
  • Immediate customer access to flight-ready aircraft parts
  • Unmatched supply chain solutions worldwide
  • Before- and after-support included with every sale and service
  • Global availability and rapid response support

As a global leader in aviation engine overhaul and component support, PAG helps operators minimize downtime and maintain safe, reliable performance across every mission profile. 

THREE FACILITIES STRATEGICALLY LOCATED ACROSS THE USA

Prime Turbines (PT)

Prime Turbines is a Pratt & Whitney PT6A and PT6T Engine Maintenance, Repair, and Overhaul (MRO) provider, specializing in aircraft engine overhaul, hot section services, and performance recovery for PT6-powered aircraft across general aviation, commercial, and special-mission operations.

Each repair facility is staffed with PT6 engine specialists and backed by PAG’s global supply chain, enabling fast turnaround times, consistent quality standards, and dependable access to certified engine parts and technical support.

Focusing on operator education and transparent communication throughout the MRO process, Prime Turbines delivers consistent workmanship, supported by certified technicians and controlled parts sourcing to maintain engine performance and reliability.

Capabilities include:

  • PT6 Engine MRO and engine overhaul
  • Hot Section Inspections (HSI)
  • Fuel Nozzle and Bleed Valve repair
  • Full engine test cell validation

Prime Turbine’s Mobile Response Team provides nationwide AOG support to reduce downtime and return aircraft to service quickly.

PT6 SERVICES
ABOUT PRIME

Engine Maintenance, Repair, & Overhaul (including full aviation engine overhaul), Hot Section Inspections, Fuel Nozzle Repairs, Bleed Valve Repairs, and additional accessory and performance restoration engine services.

We help aircraft owners manage overhaul timelines, inspection intervals, and component life limits to improve reliability and control maintenance costs.

Dedicated Pratt & Whitney PT6A & PT6T Maintenance, Repair, and Overhaul (MRO) specialist, recognized as an industry leader in engine overhaul, field maintenance, troubleshooting, and PT6 performance restoration.

Precision Aviation Group delivers full-scope PT6A and PT6T engine support globally for fixed-wing and rotary-wing aircraft use. We offer specialized, flexible, and cost-effective Engine MRO solutions for King Air, Pilatus, Cessna Caravan, and Bell 212/412 operators.

Full Engine & Accessory Solutions:

Full MRO: Overhaul, repair, and testing services including Hot Section Inspections (HSI) and full engine Test Cell analysis.

Rental/Exchange: Access our large fleet of PT6A/PT6T engines for immediate rental/exchange to minimize your aircraft’s time on ground.

Accessory MRO: Fast-turn repair and exchange for all engine accessories, including Fuel Controls, Governors, Ignition Excitors, and Stator/Armature Wind/Rewind.

Certifications: Fully FAA and EASA-certified, specializing in PT6T (Twin-Pac) engines.

Value-Added Services

Personalized build specifications

Material choices to meet performance and operational requirements

Application-driven technical guidance to maximize long-term engine value

PMA and OEM component options to manage overhaul costs

Exchange inventory available to reduce lead time and maintain fleet readiness

Field Services

On-Wing Hot Section Inspection (HSI)

Power Section Repair

Borescope Inspection

Engine Assessment & Fuel Nozzle Replacement

FOD Repairs and Compressor Blade Blending

On-wing support helps reduce unnecessary shop visits, keeping aircraft available and helping operators avoid avoidable downtime.

When to Consider an Engine Overhaul

When to Consider a PT6 Engine Overhaul or Major Repair

Understanding when to schedule an overhaul is key to maintaining reliability and avoiding unplanned downtime. While Time Between Overhaul (TBO) intervals provide a general guideline, operating conditions, usage profile, and engine health indicators can signal the need for earlier maintenance.

Common indicators your aircraft engine may require major overhaul or component service include:

  • Noticeable power loss or slower spool-up response 
  • Increased fuel burn or reduced fuel efficiency
  • Hot Section Inspection (HSI) findings showing wear or distress
  • Elevated ITT or temperature margin loss during operation
  • Hard starts or inconsistent idle stability
  • Performance degradation following prop strike, FOD event, or contamination
  • Maintenance tracking or logbook review approaching TBO

Our technicians review engine history, trend monitoring data, and inspection results to determine whether targeted repair, hot section work, or a full aviation engine overhaul is the best path forward.

Goal: Restore performance, preserve component life, and support safe and dependable fleet operation — without unnecessary cost.

Why Operators Choose Prime Turbines & PAG

Prime Turbines is part of Precision Aviation Group’s global network of FAA- and EASA-certified repair stations, delivering consistent standards, controlled processes, and reliable access to critical parts and technical expertise.

Operators choose Prime Turbines because we provide:

  • A Single Source for Engine Services & Parts: Engine repair, component overhaul, and parts support are integrated under one network — reducing vendor complexity. 
  • Technical Depth Backed by Decades of PT6 Experience: Our teams specialize in PT6A and PT6T platforms with documented procedures and repeatable performance outcomes.
  • Predictable Turnaround Times & Inventory Support: Global access to certified avionics, component, and engine parts maintains fleet readiness and reduces overhaul downtime.
  • Mobile AOG & Field Support Capability: Rapid response teams help restore aircraft availability without unnecessary shop visits.
  • Transparent Workscopes & Return-to-Service Confidence: Every overhauled engine is test-cell validated and delivered with full documentation and traceability.

The result:

Operators receive a trusted overhaul facility, dependable engine performance, and long-term maintenance planning support — allowing aircraft to return to service confidently and stay mission-ready.

 

PT6 engine testing
FAA & EASA Approved

PAG repair stations are certified by FAA, EASA, Transport Canada, ANAC, and CASA Authorities.

Global Company Resources

Customer support for PAG Parts and MRO services worldwide.
Contact us for Immediate access to PAG’s flight-ready parts inventory.

PAG Certified Parts
Access our global inventory of Avionics, Component, and Engine flight-ready spares.
John Wentworth - Executive Profile
Good Business Habits Build Customer Trust and Loyalty

Meet John Wentworth

Vice President & General Manager Prime Turbines, Mesa – Pittsburgh

We want to be the friend they know, and the friend they turn to.

Read More

Fleet Managers and Directors
of Maintenance (DOMs)

Call PAG “Our Engine
MRO Provider of Choice.”

Here are the top six reasons why.

Read More

PT6 Sales Areas

Hover over the map to connect with the PT6 salesperson in your area.

PT6 Sales Areas
Henry Lopez Lorenzo Blake David Ponce Gary Sluhan Mark Vanderkooi Kevin Blaksley Juan Giraldo

Henry Lopez

Click here to contact Henry Lopez
Send Henry an email

Or call now: 253.620.0858

Lorenzo Blake

Click here to contact Lorenzo Blake
Send Lorenzo an email

Or call now: 870.208.3814

David Ponce

Click here to contact David Ponce
Send David an email

Or call now: 214.929.1426

Gary Sluhan

Click here to contact Gary Sluhan
Send Gary an email

Or call now: 314.602.6839

Mark Vanderkooi

Click here to contact Mark Vanderkooi
Send Mark an email

Or call now: 231.292.2294

Kevin Blaksley

Click here to contact Kevin Blaksley
Send Kevin an email

Or call now: 404.775.1216

Juan Giraldo

Click here to contact Juan Giraldo
Send Juan an email

Or call now: 404.335.7421

 

Local Contact Information

Dallas Facility

For Engine Maintenance, Repairs, Overhauls, and more:

1615 Diplomat Drive

Suite # 120

Carrollton, TX 75006

+1 972.406.2100

Phoenix Facility

For Fuel Nozzle Repairs, Bleed Valve Repairs, and more: 3130 North Oakland Street Suite # 104 Mesa, AZ 85215 +1 480.646.3415

Pittsburgh Facility

For Hot Section Inspections and more: 485 Airport Road Butler, PA 16002 +1 724.586.0124
Need Help?

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