Leadership

Leaders

Meredith Siegfried Madden was appointed CEO of NORDAM in 2011. She joined the company in 1999, progressing through a series of managerial and executive positions in global operations, sales and marketing, including a turn as president and chief operating officer.

Prior to her NORDAM career, she was a senior consultant on mergers and acquisitions, corporate recovery services and financial advisory with Arthur Andersen’s global corporate finance group.

Madden serves on the boards of several industry organizations including SkyWest, Inc. (NASDAQ: SKYW), the largest regional airline in North America, and Tempur Sealy International, Inc. (NYSE: TPX), a manufacturer of mattresses and bedding products. She is a founding member of the board of directors for Flight Night, a nonprofit supporting science, engineering, technology and math for Oklahoma K-12 students. Under her leadership, NORDAM and the Siegfried family also continue their longstanding support of and partnership with Tulsa Area United Way.

She is an emeritus board member of the Smithsonian National Air and Space Museum, and past board chairman and trustee of the Tulsa Airport Authority. Madden holds an MBA from the University of Chicago, and a Bachelor of Science degree in business administration and finance from the University of Notre Dame in Indiana.

As COO of NORDAM’s international maintenance, repair and overhaul divisions, T. Hastings Siegfried is responsible for global MRO operations. He brings more than 25 years of experience in international supply-chain, strategy, and business-development roles specific to aerospace manufacturing and repair. His leadership focus is on ensuring safe and reliable performance and outstanding customer service while driving revenue growth throughout the Americas, Europe, Middle East, and Asia Pacific.

Prior to starting at NORDAM in 1998, Siegfried served the community as a Tulsa Police officer. His past organizational involvements include GAMA, an industry association of general aviation manufacturers; Tulsa Regional Chamber of Commerce; and Tulsa Area United Way.

Siegfried is certified by the Federal Aviation Administration as a helicopter pilot. He attended the University of Notre Dame in Indiana, where he earned a bachelor’s degree in business administration.

Bailey J. Siegfried is vice president of culture, communication and human resources for NORDAM, as well as chair of its culture and diversity, equity and inclusion councils.

In his primary role, Siegfried oversees safety and environmental health; ethics, compliance, and global trade compliance; and security, talent attraction and leadership development. He directs corporate branding as well as internal and external communications. He is the executive leader for environmental sustainability, stakeholder and community engagement, and educational outreach for area students, teachers and schools.

An instrument-rated pilot and member of the U.S. Geospatial Intelligence Foundation, Siegfried is involved in multiple aerospace, space, and STEM-development initiatives. He is the governor-appointed chairman of the Oklahoma Space Industry Development Authority, which administers the only unrestricted Federal Aviation Administration space corridor for travel to and from space. He is chairman of the Tulsa Regional Aerospace Council, as well as chairman of the board for Flight Night, a nonprofit that supports science, engineering, technology and math education for Oklahoma K-12 students. He also serves on the Tulsa Area United Way board.

Siegfried began his career in the risk-management industry, working for Arthur J. Gallagher. He holds bachelor’s and master’s degrees in business from the University of Notre Dame in Indiana, and he serves on the advisory council for the university’s Mendoza College of Business.

Terrell Siegfried is assistant general counsel and corporate secretary for NORDAM, and a member of its retirement advisory committee.

Prior to joining the company, Siegfried was a corporate attorney at Hall, Estill, Hardwick, Gable, Golden & Nelson, P.C., one of Oklahoma’s largest law firms, focusing on business transactions, bankruptcy, taxation, and trust and estate law. He continues to serve as Of Counsel with the firm.

Siegfried has been named a “Rising Star” several times in the areas of business and corporate practice by Oklahoma Super Lawyers. He is a member of the University of Tulsa President’s Council and of the Dean’s Advisory Board for the TU College of Law.

A former treasurer, vice president and president of the Aeronautical Repair Station Association, Siegfried still serves on its board of directors. He is a founding member of the board of directors for Flight Night, a nonprofit supporting science, engineering, technology and math for Oklahoma K-12 students.

He holds a Juris Doctor from the University of Notre Dame Law School in Indiana, and a bachelor’s of business administration in management with a minor in marketing from TU

As vice president of HushWorks, Raegen Siegfried leads the internal NORDAM team in uncovering new, advanced and evolving technologies, processes, materials or product lines for possible implementation at any division. In this role, he helps identify and monetize areas of future growth, and define which products and services the company will sell in the next five to 10 years. He spearheads industry-partner and university collaborations to bring new ideas to market.

Siegfried also directs maintenance and facilities, manufacturing technology, continuous improvement and operational excellence to ensure that new intellectual properties have a smooth internal transition from concept to reality.

Prior to joining NORDAM in 2013 as an account manager supporting airlines in Indonesia, Japan and the Philippines, Siegfried held a series of increasingly responsible positions with United Technologies Corp. He is a member of the board of directors for Flight Night, a nonprofit supporting science, engineering, technology and math for Oklahoma K-12 students.

Siegfried holds bachelor’s and master’s degrees in business administration from the University of Notre Dame and Arizona State University, respectively.

 

Alisa Perkins is NORDAM’s chief financial officer. She is responsible for tracking cash flow, financial planning and analysis of the company’s financial position to inform strategic directions.

She has more than 20 years of experience as a finance executive in the accounting, manufacturing and energy sectors, most recently as the chief financial officer of Francis Energy LLC. Her expertise spans financial operations, risk management, tax and accounting, capital structuring, cash flow improvement and cross-functional team collaboration.

Perkins is a certified public accountant with a master’s degree in accounting information systems from the University of Tulsa, and a bachelor’s degree in accounting and business administration from Drury University in Springfield, Missouri.

Jamie Lane is NORDAM’s vice president of strategy, sales and business development, with responsibility for strategic planning, profitability enhancement and competitive intelligence.

He joined the company in 2005 as part of its finance team, serving as director of financial planning and analysis, and later as treasurer.

Previously, Lane held various finance, operations, engineering design and product development leadership positions in the airline, chemical engineering and composite manufacturing industries.

He holds an MBA from the University of Tulsa, and a Bachelor of Science degree in chemical engineering from the University of Oklahoma in Norman.

Albert J. Givray joined NORDAM in 2012 as general counsel, with expertise spanning aviation-industry programs and strategic alliances, acquisitions and divestitures, licensing, finance, and intellectual property.

A partner with Denver-based Davis Graham and Stubbs LLP, Givray also is a member of the Oklahoma Bar Association, where he serves as chairman of the Financial Institutions and Commercial Law Section and co-chairman for various legislative review committees.

He has been listed for several years in The Best Lawyers in America.

Givray holds a Juris Doctor from Cornell Law School, where he graduated cum laude; an MBA from The Johnson Graduate School of Management at Cornell University; and a Bachelor of Science degree with distinction from the Cornell University School of Operations Research and Industrial Engineering, Ithaca, New York.

Phil Marshall is vice president and general manager of manufacturing operations, with direct responsibility to provide results for NORDAM’s business jet and commercial customers.

Marshall joined the company from United Launch Alliance, where he was vice president of production operations, overseeing a successful consolidation of operations in Decatur, Alabama. Prior to that, he was a site lead and general manager for Boeing facilities in both Decatur and Pueblo, Colorado, where he led industrial engineering, manufacturing, final assembly, and testing of Delta II and Delta IV launch vehicle components, including the first Delta II booster and transition to production of the 7925 vehicle.

Other past career positions include manager of product support and program manager for Boeing’s C-17 program, and engineering posts with Northrop Aircraft and Teledyne Waterpik.

He has served on the Calhoun Community College Foundation Board of Directors and the Decatur City Schools Foundation Board, and was a member of the Board of Trustees for Parkway Medical Center in Decatur. He also was part of Leadership Alabama class of 2008.

Marshall is a graduate of Colorado State University, Fort Collins, Colo., with a bachelor’s degree in mechanical engineering.

John Clawson is vice president of engineering and program management.

He joined NORDAM in 1995 as a design engineer and has held positions of increasing authority since that time, including project engineer for the Hawker 4000 IPPS Program; engineering and program manager for the F2000EX IPPS Program; value stream manager for the Pratt & Whitney product line; and director of operations.

In 2004, Clawson earned the Nacelle & Thrust Reverser Systems Division Leadership Award.

Prior to joining the company, he was a senior design engineer for Lockheed Martin Aero & Naval Systems. His career also includes positions with McDonnell Douglas Aircraft and Boeing Military Airplane Company.

Clawson holds a Bachelor of Science degree in mechanical engineering from the University of Missouri at Rolla, Missouri.

Jim Thompson is vice president of quality and technology, overseeing development of new products as well as technical support of current production and legacy propulsion systems over their operational life cycles. His responsibilities include organization design and development, project management, development of enabling technologies, and departmental performance to customer and company business objectives.

Prior to joining NORDAM in November 2005, Thompson advanced through technical, business management and executive leadership positions within Garrett Aviation Services, a subsidiary of General Electric Company, and Rohr Inc., which is now Goodrich Aerostructures.

Thompson holds a Bachelor of Science degree in industrial technology and manufacturing from California State University in Long Beach, and a master’s degree in business administration from Loyola Marymount University, Los Angeles. Thompson is also a certified Six Sigma green belt.

Karlyn Doyle is chief of staff for NORDAM CEO Meredith Siegfried Madden. She has a prominent role in planning and directing administrative, advisory, financial and operational activities to support efficient decision-making. She provides a communication framework for customers and stakeholders to interact with the CEO’s office; partners with organization leaders to manage cross-functional projects; and drives strategic initiatives, ensuring resulting actions are executed.

Doyle first joined NORDAM in a financial and information-systems management role on the company’s international sales and marketing team in 1993. She rose to director of international marketing, then transitioned to a role as global project leader.

She left in 2012 to work as director of enterprise strategy for global manufacturer TWG, a Dover corporation, returning to NORDAM in 2014. Before coming to NORDAM, she held positions at American Airlines in Tulsa, Oklahoma, and with the French Consulate in New Orleans, Louisiana.

Doyle completed an executive program at the University of Michigan’s Ross School of Business in Ann Arbor. She holds an MBA with a focus in international marketing from the University of Tulsa, and a bachelor’s degree in French from Newcomb College of Tulane University, New Orleans.

Joel R. Dougherty is vice president of human resources & EHS at NORDAM, where he supports all levels of the organization, from frontline stakeholders to corporate executives.

He leads the HR team to excel in organizational design, staffing, specialized training development and delivery, executive coaching, stakeholder relations and people-resource management. He also oversees environmental, health, safety and security functions.

Dougherty has served as a human resources officer in the United States Navy Reserve, and regularly shares his time and knowledge with various nonprofit organizations and boards.

He earned a Master of Arts degree in industrial and organizational psychology from the University of Tulsa, and a bachelor’s degree in psychology from Oral Roberts University, both in Tulsa, Oklahoma.

Pete Self is vice president of information technology for NORDAM. He leads efforts to recognize, interpret and mitigate business and technology risk exposure, bringing security, maturity and stability to the firm’s information systems.

He has well-established industry certifications as an information systems security professional, a chief information security officer, and an ethical hacker.

Prior to joining the company, Self was director of IT security and compliance for StandardAero in San Antonio, Texas. His career has included similar positions with employers in the federal contracting financial, healthcare, insurance and smart-grid sectors.

Self holds an MBA from Webster University, St Louis, Missouri, and a Bachelor of Science degree in computer science from Saint Martin’s University, Lacey, Washington.

Carlos Flores is vice president of manufacturing sales, leading NORDAM’s pursuit of new business and expanding existing relationships to meet growth objectives. He plays a major role in developing a diverse base of international customers across numerous aerospace market segments, manages multiple-channel selling strategies, and builds and leads the OEM sales team. He also assists with new prospect development and in aligning pricing and negotiation strategies to market conditions.

Notably, from 2004 to 2005, Flores served as business liaison and communication specialist for NORDAM founder and Chairman Ray Siegfried, enabling Siegfried to continue business leadership and productivity while battling amyotrophic lateral sclerosis.

He previously managed a multimillion-dollar regional benefactor portfolio of some 200 alumni, parents and friends of his alma mater, the University of Notre Dame, South Bend, Indiana.

Flores earned a bachelor’s degree in political science from Notre Dame and a master’s degree in finance from the University of Tulsa.

Marc Overton is vice president of business development, MRO. He oversees sales efforts in the commercial OEM market and develops additional aftermarket strategies for NORDAM’s Repair group.

Overton joined NORDAM in 1993 as a regional director of marketing and sales. He later progressed through several business development and executive leadership roles focused on regional airline sales, global lease-returns, the PRISM exhaust component product line, and business aircraft manufacturing sales.

Prior to joining NORDAM, Overton spent six years with Ten Cate Aerospace and Perkins Plastics in the sales and business development areas. He has a bachelor’s degree in business aviation from Texas Tech University, Lubbock, Texas.

Tim Gervais is vice president of business development for NORDAM’s manufacturing division. In this role, he deploys customer-intimate strategies to achieve NORDAM growth objectives across new and existing accounts.

His 30-year industry background includes senior leadership positions in sales, marketing, program management, and business development with Applied Composites, Ducommun Aerostructures, McDonnell Douglas Helicopter Company, and others.

Gervais earned an MBA from the University of Southern California in Los Angeles, and a Bachelor of Science degree in mechanical engineering from the University of Notre Dame in Indiana.

Barry Walters is vice president of MRO sales. He leads a team of customer administrators, customer service representatives and sales professionals, enhancing existing customer relationships and pursuing new opportunities to grow this business unit. Walters also promotes NORDAM repair products and services; supports internal engineering and production teams by relaying technical information required to meet contract requirements and customer expectations; and contributes to long-range strategy planning.

He joined the NORDAM Repair team in 1998 as a customer administrator for key airline customers, quickly transitioning into regional sales management for the Transparency segment within the Manufacturing group. He later returned to Repair as global account manager for the company’s largest worldwide account, FedEx Express, a responsibility he retains today. Past positions include director of strategic accounts, director of operations, and vice president of sales for former NORDAM subsidiary PartPilot.

Walters holds a bachelor’s degree in psychology, with a double minor in business management and industrial technology supervision, from Northeastern State University in Tahlequah, Oklahoma.

Brian Schlegel rejoined NORDAM in 2023 as senior director of supply chain for the repair group, focusing on global supply chain strategy.

His aerospace experience includes leadership positions in supply chain, operations, quality, site management and sales, with the bulk of his 35-year career spent at Goodrich Aerospace, GE Aviation and NORDAM.

Schlegel holds a Master of Science in management from Rensselaer Polytechnic Institute in Troy, New York, and a Bachelor of Science in finance from the University of Connecticut.

Board of Managers

Ken Lackey has been chairman since 2005. He joined the company as executive vice president and chief financial officer in July 2001 and was elected president and chief operating officer in November of that year. The following April, he was appointed president and CEO of NORDAM, serving in that capacity until 2011.

Prior to joining NORDAM, Lackey served as president of The University of Oklahoma-Tulsa and senior vice president of the OU System from July 1999 to July 2001 and was a member of Governor Frank Keating’s administration, serving as his chief of staff from February 1997 to July 1999.  From 1995 to 1997, he served as the Oklahoma Cabinet secretary of health and human services. Before his service in state government, Lackey held the position of president of Flint Industries, a privately-owned, international company with interests in oil and gas services, manufacturing and commercial construction. Earlier, he held management positions with Skelly Oil (NYSE) and Kin-Ark Corporation (ASE). He serves as a director and chairman of the compensation committee for Matrix Services Company (NASD), an advisory director for Commerce Bankshares, a director of the Community Hospitals Authority, a director of the Tulsa Community College Foundation, and as a director and member of the audit committee for AAON, Inc. (NASD)

He is a past chairman of the Metropolitan Tulsa Chamber of Commerce. A graduate of the University of Mississippi with a Bachelor of Science in mathematics, Lackey earned his Master of Business Administration from the University of Texas at Austin. He served in the U.S. Army as an artillery officer from 1967-1969.

Lackey is married and has one daughter.

Meredith Siegfried Madden was appointed CEO of NORDAM in 2011. She joined the company in 1999, progressing through a series of managerial and executive positions in global operations, sales and marketing, including a turn as president and chief operating officer.

Prior to her NORDAM career, she was a senior consultant on mergers and acquisitions, corporate recovery services and financial advisory with Arthur Andersen’s global corporate finance group.

Madden serves on the boards of several industry organizations including SkyWest, Inc., the largest regional airline in North America, and Tempur Sealy International, Inc., a manufacturer of mattresses and bedding products. She is a founding member of the board of directors for Flight Night, a nonprofit supporting science, engineering, technology and math for Oklahoma K-12 students. Under her leadership, NORDAM and the Siegfried family also continue their longstanding support of and partnership with Tulsa Area United Way.

She is a past board member of the Smithsonian National Air and Space Museum, and past board chairman and trustee of the Tulsa Airport Authority. Madden holds an MBA from the University of Chicago, and a Bachelor of Science degree in business administration and finance from the University of Notre Dame in Indiana.

David M. Brantner most recently served as vice president of customer, strategy and growth for United Technology Corporation’s UTC Aerospace Systems, and prior to that was president of GKN Aerospace.

His earlier career included more than 20 years with Pratt & Whitney, progressing through positions of increasing authority. Notably, Brantner was vice president of group strategy and development there, and later was vice president of strategic sourcing and contracts. In May 2013, he became president of Pratt & Whitney’s $7 billion commercial engines unit, developing and certifying new engine programs and leading program management, sales and marketing.

Brantner is a graduate of General Electric’s financial management program, as well as UTC’s Darden and Carnegie Mellon business programs. He holds a master’s from Purdue University in West Lafayette, Indiana, and a bachelor’s in business administration from Northeastern University in Boston.

Orlando P. Carvalho is a retired corporate officer of the Lockheed Martin Corporation and retired executive vice president of its aeronautics business area, a 24,000-employee enterprise generating over $20 Billion dollars in annual revenue.

In his 38 years with Lockheed Martin, Carvalho has held several integral leadership positions, including executive vice president and general manager of the F-35 Lightning II Joint Strike Fighter program. In this role, he led the system development and demonstration program, aircraft production, flight testing and global sustainment of the three F-35 variants for the United States, eight partner countries and three foreign military sales customers.

Previously, he served as vice president and deputy for the F-35 Lightning II Joint Strike Fighter program; President of Lockheed Martin Mission Systems & Sensors; and general manager and vice president of surface-sea based ballistic missile defense systems. Carvalho is credited with securing and managing the Spanish Navy’s F-100 Combat System program – Lockheed Martin’s first significant entry into the European naval combat system market.

Carvalho presently serves as an elected independent director on the Board of Mercury Systems, a leading technology company serving the aerospace and defense industry. He also serves as chair of the board of advisors to the dean for the University of Maryland Robert H. Smith School of Business. He is an associate fellow of the American Institute of Aeronautics and Astronautics, and was named executive of the year by the National Management Association in 2015.

Carvalho holds a Master of Business Administration from the University of Maryland at College Park, and a Bachelor of Science in mathematics from Fairfield University in Connecticut.

Michael Echemendia has over 10 years of private equity investing experience, most recently with The Carlyle Group’s flagship U.S. Buyout fund, focusing on investments in the aerospace, defense and government services sectors.

Previously, Mr. Echemendia was a Vice President with Carlyle Strategic Partners, focused on private equity and special situations investments across a broad range of sectors. Mr. Echemendia was the 2016 Toigo Private Equity MBA Fellow at Carlyle.

Prior to joining Carlyle, Mr. Echemendia was with Bank of America Merrill Lynch, focused on principal investments and M&A.
He received his MBA from Columbia Business School, where he was a Private Equity Fellow, and received a BS in finance from The Carroll School of Management at Boston College.

Mr. Echemendia has served as a director on the board of several Carlyle investments, including Acentra Health, CNSI and Paradigm Precision, among others.

In June of 2015, Joe Lombardo retired from his position as executive vice president of the General Dynamics aerospace group, which includes Gulfstream Aerospace Corporation and Jet Aviation.

He has led an eventful, nearly 40-year career in aerospace that began at Douglas Aircraft in 1975 and which has spanned leadership roles in production and material control, planning and manufacturing. In 1996, Lombardo joined Gulfstream as vice president of co-production, where he was involved in the successful ramp-up and dual production of the Gulfstream IV-SP and Gulfstream V. He later was named the company’s chief operating officer, with responsibility for the cost, quality and schedule of manufactured products. From 2007 until 2011 he served as president of Gulfstream.

Notably, in 2012 he was awarded the Cliff Henderson Trophy by the National Aeronautic Association for making a significant and lasting contribution to the promotion and advancement of aviation and aerospace in the United States.

A past member of several non-profit boards, including Corporate Angel Network, the General Aviation Manufacturers Association and the National Aeronautic Association, he also served as chairman of the board of governors for the Ocean Exchange. In retirement he serves as a member of the board for the Fred and Susan Breidenbach Scholarship Program, as well as a volunteer in a number of activities at his church.

In 1984, Lombardo received a master’s degree in business administration from California State University Long Beach. He earned a bachelor’s degree in sociology from San Diego State University in 1971, followed by four years as a volunteer with the Peace Corps.

John Pavelski is a managing director and co-head of North America for the Carlyle Credit Opportunities Fund, focusing on structured equity and special situations investment opportunities. He is based in New York.

Previously, Pavelski was a managing partner and head of global private credit at Brookfield Asset Management, where he led the private credit and special situation investing efforts. He founded the corporate private credit business and also oversaw the Indian Credit and Homebuilder Finance platforms. Prior to Brookfield, he worked at American Securities and focused on control and non-control opportunistic credit investments, and at Silver Point Capital, focusing on private credit and distressed opportunities.

Pavelski began his investing career as an analyst at Goldman Sachs and a senior analyst in the private equity group of The Blackstone Group. He serves on the following boards in addition to NORDAM: Guitar Center, SBP Holdings, Fitness International, and AFG Holdings.

He earned an MBA from the Harvard Business School and a Bachelor of Arts from Amherst College in Massachusetts, where he graduated magna cum laude with distinction.

Milann H. Siegfried is a registered nurse and community volunteer. She has served on or headed boards of a number of institutions, including the Tulsa Philharmonic, Tulsa Opera, Foundation for Excellence, and the American Academy of Physician and Patient.

Milann was the first female chairman of the board of Cascia Hall Preparatory School and St. John Medical Center. She has served on the National Committee for the Performing Arts, State Arts Council, Philbrook Art Museum, and was president and chairman of Gilcrease Museum. She was a trustee of the University of Portland (Oregon) and a trustee of the University of Tulsa. Milann was a member of the National Review Board, appointed by the U.S. Conference of Catholic Bishops. She is the chairman of St. John Medical Center, a trustee of Eisenhower Medical Center – California, Footsteps Committee for the Order of Holy Cross Priests, the Papal Foundation, the ALS Advisory Committee of the Judith, and Jean Pape Adams Charitable Foundation.

Milann Siegfried is the widow of NORDAM’s founder, the late Ray Siegfried.