Athens
3rd International Conference
for CBM in Aerospace
19 - 21 May 2026
David Piotrowski
Tuesday 19.05 David Piotrowski currently works as a Senior Principal Engineer in Delta Air Lines’ Predictive Technologies & Innovation group. His responsibilities include innovation of inspection technologies, enabling the evolution of data-driven, tail-specific maintenance in civil aviation. He also has oversight of Delta’s internal NDT materials and processes, developing and implementing novel inspections to solve in-service problems, and assisting in Damage Tolerance Analyses and Failure Investigations. Prior to his 26 years at Delta, David worked at Pratt & Whitney for 4 ½ years in a similar capacity. He led a team receiving a 2026 Aviation Laureate for the first regulatory approval of camera based inspections (drone) in an operator’s maintenance program. Additionally, he was part of teams which were named the 2006, 2008, 2009, 2010, 2012, 2014, 2022, 2023 and 2025 FAA-A4A “Better Way Award” Winners for accomplishments in NDT. He was named to Delta’s prestigious “Chairman’s Club” in 2010. He was named an SAE Fellow in 2024, and is a member of SAE’s Aerospace Council. Currently he serves as Chair of SAE’s Steering Group of Integrated Vehicular Health Monitoring (IVHM). He is a member of SAE’s Aerospace Industry Steering Committee on Structural Health Monitoring (AISC-SHM), Committee K, HM-1 Committee (Health Management), E-32, and the Commercial Aircraft Composite Repair Committee (CACRC), plus A4A’s MPIG (Mtc Programs Industry Group). Previously he served 3 years as Chair of A4A’s NDT Network, and Chair of the AISC-SHM. He has Bachelor of Materials Engineering and Master of Metallurgy degrees from Georgia Tech, as well as an MBA in Aviation from Embry-Riddle. He is ASNT (American Society for Nondestructive Testing) Level III certified in Penetrant, Ultrasonics, and Eddy Current.
Tuesday 19.05 David Piotrowski currently works as a Senior Principal Engineer in Delta Air Lines’ Predictive Technologies & Innovation group. His responsibilities include innovation of inspection technologies, enabling the evolution of data-driven, tail-specific maintenance in civil aviation. He also has oversight of Delta’s internal NDT materials and processes, developing and implementing novel inspections to solve in-service problems, and assisting in Damage Tolerance Analyses and Failure Investigations. Prior to his 26 years at Delta, David worked at Pratt & Whitney for 4 ½ years in a similar capacity. He led a team receiving a 2026 Aviation Laureate for the first regulatory approval of camera based inspections (drone) in an operator’s maintenance program. Additionally, he was part of teams which were named the 2006, 2008, 2009, 2010, 2012, 2014, 2022, 2023 and 2025 FAA-A4A “Better Way Award” Winners for accomplishments in NDT. He was named to Delta’s prestigious “Chairman’s Club” in 2010. He was named an SAE Fellow in 2024, and is a member of SAE’s Aerospace Council. Currently he serves as Chair of SAE’s Steering Group of Integrated Vehicular Health Monitoring (IVHM). He is a member of SAE’s Aerospace Industry Steering Committee on Structural Health Monitoring (AISC-SHM), Committee K, HM-1 Committee (Health Management), E-32, and the Commercial Aircraft Composite Repair Committee (CACRC), plus A4A’s MPIG (Mtc Programs Industry Group). Previously he served 3 years as Chair of A4A’s NDT Network, and Chair of the AISC-SHM. He has Bachelor of Materials Engineering and Master of Metallurgy degrees from Georgia Tech, as well as an MBA in Aviation from Embry-Riddle. He is ASNT (American Society for Nondestructive Testing) Level III certified in Penetrant, Ultrasonics, and Eddy Current.
Zeb Twiddel and Walter Jarecki
Wednesday 20.05 TIDWELL, ZEB
ATF, E-UM Airframe Customer Support
Email: zeb.tidwell@boeing.com Zeb is a structural engineer with expertise in stress analysis and certification of airframe and repairs. Zeb has been with Boeing Customer Support for 11 years supporting the 767 as an Engineering Unit Member (E-UM). Prior to that, Zeb has worked 20+ years in stress analysis for commercial aircraft (777F, 747-8F, 787-8, 767-2C, A220), military aircraft (F-16, F-22, F-35, T-50), spacecraft (X-33) and research/development (DARPA morphing wing) for Boeing, Lockheed Martin, Northrop Grumman, Bombardier, and a startup company. He spent three years in South Korea for the T-50 jet trainer as Lockheed’s technical advisor for composites. He also spent one year in China for the fuselage structure of the A220 aircraft. Zeb holds a B.S. and M.S. in Aerospace Engineering from the University of Texas at Arlington.
JARECKI, WALTER
ATF, Airframe Customer Support
Email: walter.j.Jarecki@boeing.com Walt is a service engineer with expertise in nondestructive testing methods for aircraft maintenance inspections. He has 30 years of aircraft wing and fuselage design experience on C-17, 787, 767-200/-300 BCF and 757 Eco Demonstrator technology demonstrator. Walt focuses on the adoption of new inspection technologies for aircraft maintenance inspections. Walt’s vision is to reduce scheduled aircraft maintenance inspection task times by 50 percent by adopting inspection tools and processes that enable customer self-reliance and faster decision making. Effective integration of new inspection tools into maintenance operations will distinguish Boeing products from our competition. Walt holds a B.S in Aerospace Engineering from Iowa State University.
Wednesday 20.05 TIDWELL, ZEB
ATF, E-UM Airframe Customer Support
Email: zeb.tidwell@boeing.com Zeb is a structural engineer with expertise in stress analysis and certification of airframe and repairs. Zeb has been with Boeing Customer Support for 11 years supporting the 767 as an Engineering Unit Member (E-UM). Prior to that, Zeb has worked 20+ years in stress analysis for commercial aircraft (777F, 747-8F, 787-8, 767-2C, A220), military aircraft (F-16, F-22, F-35, T-50), spacecraft (X-33) and research/development (DARPA morphing wing) for Boeing, Lockheed Martin, Northrop Grumman, Bombardier, and a startup company. He spent three years in South Korea for the T-50 jet trainer as Lockheed’s technical advisor for composites. He also spent one year in China for the fuselage structure of the A220 aircraft. Zeb holds a B.S. and M.S. in Aerospace Engineering from the University of Texas at Arlington.
JARECKI, WALTER
ATF, Airframe Customer Support
Email: walter.j.Jarecki@boeing.com Walt is a service engineer with expertise in nondestructive testing methods for aircraft maintenance inspections. He has 30 years of aircraft wing and fuselage design experience on C-17, 787, 767-200/-300 BCF and 757 Eco Demonstrator technology demonstrator. Walt focuses on the adoption of new inspection technologies for aircraft maintenance inspections. Walt’s vision is to reduce scheduled aircraft maintenance inspection task times by 50 percent by adopting inspection tools and processes that enable customer self-reliance and faster decision making. Effective integration of new inspection tools into maintenance operations will distinguish Boeing products from our competition. Walt holds a B.S in Aerospace Engineering from Iowa State University.
Bruno Santos
Bruno F. Santos is the Unit Leader of Data Transformation & Continuous Improvement at KLM Engine Services, where he drives strategic initiatives to apply advanced analytics, AI, and digital solutions to improve engine MRO performance and foster a culture of innovation. Before joining KLM in 2024, Bruno was Associate Professor at the Faculty of Aerospace Engineering at Delft University of Technology (TU Delft), where he also served as Section Head of Air Transport and Operations. His academic work focused on airline operations, aircraft maintenance planning, and condition based maintenance, combining operations research and machine learning. He was the scientific coordinator of the EU H2020 ReMAP project, a flagship initiative on real time condition based aircraft maintenance.
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