About Us

Headquartered in Portsmouth, New Hampshire, Aviation Management Systems, Inc. (“AMS”) is an aviation consulting firm offering a unique blend of consulting services to the global aviation market. The background of our management, staff and associates provides a solid foundation of knowledge and experience allowing AMS to offer our clients both insightful and informative advice and counsel. Our company’s focus is to assist clients with a variety of aviation services to meet their unique needs and requirements. Our goal is to offer our clients the support necessary to make informed decisions.

Our experience working with management companies, charter operators, the financial and legal community, aircraft and engine manufactures, and industry service sectors, enables AMS to offer our clients a wide range of disciplines. Our activities are designed to cooperate rather than compete with aircraft dealers/brokers, fixed base operators, aircraft charter and management/service organizations. We work in concert with them on our client’s behalf.

Our team’s disciplines are based on the strength of our management, administrative, finance, technical and operational background and experience. The services we offer focus on providing management solutions, process management, aircraft technical and market evaluations, business and operational audits. In particular, we support the needs of clients acquiring aircraft.

As a dedicated consumer advocate, the company’s sole source of business is derived from fee-based management consulting services. We do not accept fees or commissions from third parties.

Meet our team


William J. Quinn, Jr.

William J. Quinn, Jr., President and CEO

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Aviation Articles : Empty Legs, Empty Promises August 28, 2016

Bill Quinn is the Founder, President and CEO of Aviation Management Systems, Inc. He has been providing management, technical, operational, and asset based consulting services to aircraft owners and operators as well as the aviation, financial, insurance and legal communities for more than 40 years.

Bill is considered by many to be one of the leading experts in the business aviation industry. He is a frequent speaker at industry related conferences and has written a number of articles on the value of aircraft as collateral and the relative impact that aging aircraft and regulatory changes have on the market value of aircraft. He is an Accredited Senior Appraiser with the American Society of Appraisers.

He serves as Chairman of the Board for AMS and sits on the board for SAI Valuations. Bill has served on the boards of the National Aircraft Finance Association (NAFA) and National Aircraft Resale Association (NARA). He chaired NARA’s Associate Member Advisory Council and served on the NARA Board as a member at large. He is also a member in good standing of the NBAA, EBAA, ISTAT, American Society of Appraisers, New England Helicopter Council, Business Aviation Professionals of New England and the AOPA.

Bill holds an Airline Transport Pilot license for both fixed and rotary wing aircraft with type ratings in both business jets and helicopters. He has more than 6, 000 hours of flying experience, including international operations in the Far East and Europe.

Lewis "Chan" Conrad

Lewis “Chan” Conrad, Technical Consultant


Chan joined AMS in 1987 as a technical and operations consultant. He brings an extensive background in aircraft operations and management to the AMS team. His 35 years of experience have been instrumental in guiding the company’s technical and operational consulting activities.

During his aviation career, he has directed the maintenance departments of several corporate flight operations, aircraft charter operations and two airline operations. He has an extensive background in scheduling and maintenance and has managed the construction of several commercial aircraft hangar facilities. He also has a proven record of accomplishment and background in FAR Part 91, 121 and 135 operations. He has worked closely with senior management on various litigation related projects and supports the operations aspects of our business by conducting aircraft and records audits for aircraft evaluation and valuation projects. He is rated as an Airline Transport Pilot. His aircraft type ratings are HFB320, CE500 AND CE560XL; he has logged more than 11, 500 hours and is current and qualified in the Cessna Citation 500 series. He is also a licensed Airframe and Power-plant Technician with inspection authorization.

His aviation career began in 1964 with the United States Air Force. In 1969, he earned his Airframe and Power plant license from the Spartan School of Aeronautics in Tulsa, Oklahoma.

Devan A. Clark

Devan A. Clark, Aviation Consultant


Devan joined Aviation Management Systems, Inc. in 2016. His primary roles at AMS are that of market analyst, contract administration, acquisition coordination, and negotiation. He interacts with clients and various business aviation professionals and works directly with the company’s senior management to ensure successful management of multiple projects.

Prior to joining AMS, Devan put his leadership skills to use as business jet salesman. Facilitating acquisitions and sales of business jet aircraft, he performed many functions such as generating leads for off-market aircraft, developing off-market aircraft into exclusive listings, compiling market data for existing and potential clients, as well as potential entrants to business jet ownership. Additionally working with creating content aimed at current aircraft owners and internally developing and optimizing aircraft advertising and marketing campaigns.

A former United States Navy Midshipman, he was an integral member of a wide range of teams and associations: National Society of Black Engineers (NSBE), Society of Hispanic Professional Engineers (SHPE), Varsity Football, and Varsity Track & Field to name a few. Despite a rigorous Weapons Systems Engineering workload, Devan focused his professional development on pursuing a career in the special warfare community working towards earning a very competitive slot at the Basic Underwater Demolition/SEAL program.

Leaving the armed services, Devan completed his undergraduate education at Hampton University graduating at the top of his class with a Bachelor’s of Science degree in Electrical Engineering Magna Cum Laude and earning departmental honors.

Devan began his professional engineering career with the United States Patent and Trademark Office as a Patent Examiner where he was on the leading edge of technical innovation. He then moved into working as a field engineer for Xerox before diversifying his professional growth by exploring the marketing and sales field.

Striving to expand his knowledge base, Devan is currently working towards becoming an accredited aircraft appraiser with the American Society of Appraisers (ASA).

Devan’s considerable experience in leadership, management, and technical applications provide him the ability to communicate and translate between technical experts and end users provides for a seamless transaction experience. His ability to leverage relationships inside and outside of the aviation industry, as well as merge them with his overall work ethic make him an invaluable member of the AMS team.