7FUG 2020: MD&A – Combined Cycle Journal

7FUG 2020: MD&A

7FA Component Lifetime Extension


José M. Quiñones, P.E.

Director of Engineering for MD&A San Antonio Service Center, our Gas Turbine Parts Service Facility

BS in Mechanical Engineering from Texas A&M University. Over 30 years’ experience working with gas turbine engines. Eleven of those years were working for the US Air Force in support of repairs of military engines. Most of the rest was with Pratt & Whitney, working with military engines, commercial aviation, and industrial gas turbines. Currently support the repairs and new parts manufacturing of industrial gas turbine components.

Presentation Synopsis

The MD&A San Antonio Service Center, our Gas Turbine Parts Service Facility, has over 20 years of proven expertise in repairing and manufacturing gas turbine components. This experience began with the repair of military gas turbine engines and transitioned to commercial aviation and industrial gas turbines. Our team has extensive knowledge for a range of gas turbine component repairs. This repair center has repaired over 1,200 F-class sets of components.

Typical gas turbine components operate to the OEM recommended useful life. Sometimes upgrades are performed in the gas turbines components and the old components become obsolete. Many times, we find components that were not repaired because no procedures or technology was available at the time of their removal. Currently there are many ways to fully characterize the conditions of these components and properly evaluate them in order to determine if they are candidates for a life time extension and to operate them beyond the OEM established limits.

In order to determine if the components are candidates for a life time extension, we need to understand if the parent material has the properties needed to operate one more service interval. We also need to ensure that the repair that will be implemented can also operate for one more service interval. In the process of learning about the components condition we also get to understand their failure modes. We use these lessons learned to design gas turbine components that are more robust in operation and more repairable.

In this webinar we will cover the typical limiting factors of gas turbine components and how they can be repaired. We will cover the steps used in implementing a life time extension and will show some case studies. Some examples of how new parts are redesigned with features that make them more robust will also be covered.

Key Takeaways for Users

  • We will cover the limiting factors of the industrial gas turbine Hot Gas Path components
  • Typical steps to follow when performing a life time extension project
  • Upgrades, modifications, improvements, that can be incorporated to ensure a robust life time extension on a component, including advanced coatings.


General MD&A & Outage Services: +1 518-399-3616

MD&A Turbine-Generator Repair Facility: +1 314-880-3000

MD&A Gas Turbine Parts Service Facility: +1 210-256-5000

MD&A Parts Division:+1 518-885-3199

MD&A Bearings, Seals & Hydraulics Division: +1 440-946-0082

MD&A Control Systems: +1 970-224-2223

About MD&A

Mechanical Dynamics & Analysis (MD&A) provides power generators around the globe with a full-service, OEM-alternative for services, parts, and repairs for Gas Turbines, Steam Turbines & Generators. In our 35 years, our commitment to excellence has earned customer trust for all turbine-generator needs. We focus on delivering consistent quality and value with fast response, superior communications, and innovative solutions.

MD&A is easy to work with. We provide immediate access to expert help when you need it, where you need it. Around the corner or the globe, we ensure prompt, thorough communication and follow-through. For every repair job, large or small, the speed and effectiveness of our response team is matched only by the depth and breadth of our engineering expertise.

Find out today why so many power generators use MD&A to maximize operational effectiveness.

Products and Services

Gas Turbines

Outage Planning
Gas Turbine Technical Direction
Gas Turbine Turnkey Labor & Turnkey Inspections
Gas Turbine Rotor Repair
Gas Turbine Component Repair
Fuel Nozzle Repair
Compressor Vane Pinning Solutions
Gas Turbine Bearings Repairs
Oil Deflector Repairs
Bronze Turbine Seal Ring Repairs
Gas Turbine Alignment
Coupling Laser Alignment
Operational Alignment Diagnostics-CMM System
Field Machining Services
Control Excitation Field
Control and Excitation Field Engineering, Consulting & Training
Gas Turbine End of Life Evaluation
Turbine System Enhancements
Turbine Foundation Monitoring
Centerline Installation
Thermodynamic Analysis
Thermographic Survey
Performance Testing & Analysis
High Speed Balance Facility
Gas Turbine Parts & Upgrades

Steam Turbines

Outage Planning
Technical Direction
Turnkey Inspection
Turnkey Labor
Turbine Topless Laser Alignment
Operational Alignment Diagnostics-CMM System
Coupling Laser Alignment
Custom Seal Installation
Field Machining Services
Balancing & Vibration Analysis
Control and Excitation Field Engineering, Consulting & Training
Steam Path Audits
Turbine Engineering
Remaining Life & Finite Element Analysis
Performance Testing & Analysis
Thermodynamic Analysis
Thermographic Survey
Turbine System Enhancements
Turbine Control Retrofits
Turbine Foundation Monitoring
Centerline Installation
Acceptance Testing
Stationary & Rotating Component Repair
Rotor Straightening
Casing/Shell Analysis & Renovation
Bearing Ball Ring Repairs
Distortion Correction
High Speed Balance
High Pressure Valve Repair
Valve Actuator Repair
Westinghouse Horizontal Throttle Valve Repair
Steam Seal Regulator
MHC Operating Governor
Control Pac Power Actuators
Overspeed Governor
Control Rotor
Bearing Repair
Oil Deflectors
Portable Machine Shops
Machining Services
Steam Turbine Parts


Robotic Generator In-Situ Inspection
Generator Testing & Inspections
High Speed balance
Balancing & Vibration Analysis
Control and Excitation Field Engineering, Consulting & Training
Generator Excitation Retrofits
Turbine System Enhancements
Turbine Foundation Monitoring
Center-line Installations
Generator Parts




19 British American Blvd E
Latham, New York 12110
United States

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