Aviation Maintenance (General) Expert Witnesses: 4

Byron Birkedahl, founder and sole expert of HyMasa LLC, has over 41 years of experience in Aviation Electronic Systems at a fortune 100 aerospace company with the most recent role as the Senior Chief Engineer of Advanced Air Mobility and Next Generation Avionics.

Mr. Birkedahl has performed numerous safety assessments of aircraft incidents and served as an advisor to the FAA on new regulatory guidelines. He is an Engineering Fellow / System Architect and Flight Test Engineer credited with creating models and simulations of EVTOL dynamics, propulsion, flight controls and sensors for electronic system design analysis and real time simulator demonstrations. 

Mr. Birkedahl has 11 patents to his name (3 pending) and is responsible for creating control laws for autopilots and flight directors certified on numerous aircraft.

Experience (selected):

• Creation and approval of certification documents and safety analyses
• Knowledge of regulations and architectures of aircraft electronic systems
• Interface and presentations to worldwide aviation regulators (e.g. FAA, EASA, ANAC, CAA, Transport Canada) for the certification of aircraft electronic system
• Establishing the preliminary assessment of safety vs non-safety for aircraft incidents
• Conducting the FAA's Transport Airplane Risk Assessment Methodology (TARAM) of several aircraft incidents and coordination with the FAA of the results
• Analysis of Flight recorder data on a very high-profile accident and meetings with the NTSB on findings

Litigation Support - Mr. Birkedahl has extensive experience in aviation electronic systems that can assist in areas such as aviation accident litigation cases or the evaluation of start-up company viability / risk for investors. His services are available to attorneys representing plaintiff and defendant and government agencies.

Areas of Expertise:

• Presentation Communications with Aviation Regulators (worldwide)
• Aviation Modeling / Analytics / Simulation / Control Laws
• Lead Architect of Complex Aviation Electronic Systems
• Communications to Corporate Leadership and Aircraft OEMs
• Aviation Hazard / Safety Assessments

View HyMasa, LLC's Business Consultant Profile.

Evidence Solutions, Inc. (ESI) is a premier forensics company established in 1982 to help clients obtain, understand, and utilize all the data and information available to them.  We can analyze cell phones, computers, hard drives, EDRs, reconstruct accidents, provide trucking standard of care consulting, recover digital data, and provide expert witness testimony in our many areas of expertise. Our experts can help you understand what needs to be done, what should have been done, and what to do next.  Call us today so we can help you!

Litigation Support - Evidence Solutions' team of Expert Witnesses has a combined expertise of nearly 3 centuries. Our experts provide expert witness services in Digital Forensics, Law Enforcement, Cyber Security, Accident Reconstruction, Commercial Trucking, Real Estate, Greek Fraternity, and Aviation.

auto, and truck accidents, accident reconstruction, EDR forensics, sports injury, police standards and policies, CMV standards, Greek fraternity issues, product failure analysis, and medical record recovery and analysis.  No matter how complex the case, they can help you discover what happened and present it in a way that everyone can understand.

Areas of Expertise:

Digital Forensics Auto & Truck Accidents Cell Phone Forensics Accident Reconstruction Black Box Forensics Sports and Fitness Injury Police Standards and Policies CMV Standards Greek Fraternity Issues

Product Failure Analysis Medical Record Recovery and Analysis Data Recovery Real Estate  Financial Services General Aviation Military Aviation Trucking Brokerage Triangulation / GPS

 Featured ESI Experts:

John Ross - Commercial Motor Vehicle - Heavy Vehicle - Truck Driving Standard of Care Expert Witness

John Ross has been driving commercial vehicles professionally since 1993 and boasts a blemish-free, no violations record. His experience includes owner/operator, safety director, and compliance director. He has significant experience in safely transporting hazardous materials (HAZMAT) including oil field operations and transportation. John also has significant experience in loading, unloading, and load securement. 

Expertise: Commercial Vehicles (18 Wheeler), Commercial Vehicle Safety Facilitator, Tractor-Trailer Inspection, CMV Operations, HAZMAT Handling, HAZMAT Driving, Tractor Maintenance, Trailer Maintenance, Professional Driving, Standard of Care Expert, Trailer Loading and Unloading Safety, Truck Driver Actions, Truck Driver Responsibilities, Driver Qualifications, Driver Training, Federal Trucking Regulations (FMCSRs), State Trucking Regulations, Driver Training Instructor, Double & Triple Trailer Driving, Trucking Industry Safety Standards, Loading and Unloading of Hazardous Liquid Safety, Oil Field Heavy Trucking Expertise, Electronic Logs / Electronic Logging

Joseph Renda  - General Aviation - Unmanned Aerial Systems - Aviation Maintenance Expert Witness

Joseph Renda is an experienced General Aviation pilot with over 6,800 flight hours. He is FAA certified for Unmanned Aerial Systems, Single Engine Land, Multi Engine Land, and Instrument. Mr. Renda also has decades of experience in Aircraft Acquisition, Repair, and Sales including international acquisition. He has maintained and audited maintenance records and understands compliance and regulatory issues surrounding them.

Expertise: General Aviation Repair, FAA UAS Pilot (Unmanned Aerial Systems), Commercial Single Engine/Instrument Rating, Commercial Multi-Engine / Instrument Rating, Land Instrument Training, International Aircraft Acquisition, Airplane Paint and Interior Refitting, Photo and Video Marketing of Aircraft, Aviation Maintenance and Services, Aircraft Sales, General Aviation Pilot Standard of Care, Ultralight Instructor, Maintenance Record Keeping Requirements, Person-Machine-Environment Interface

Daniel J. Brown - Law Enforcement Standard of Care Expert Witness

Daniel J. Brown served in the Law Enforcement profession for nearly 22 years, with close to 28 years of combined policing and military service. He is a seasoned professional with proven leadership skills. He helped establish a municipal police department from inception and used this knowledge to re-build two different fledgling police departments as a police chief. Mr. Brown is a decorated military veteran of two branches of service, holds a graduate-level education, and is currently pursuing his Ph.D. His experience in law enforcement ranges from municipal, county, tribal, and military. He is also a graduate of the 267th Session of the FBI National Academy.

Expertise: Community Policing, Preventing Violence through Community Policing, Major Crimes Investigation, Police Policy and Procedure, Increasing Department Productivity, Municipal, County, Tribal and Military Law Enforcement, Threat Assessment and Management, Enhancing Community Trust, Intelligence Led Policing, School Resource Officers Management, Arizona Peace Officers, Advanced Accident Investigations, Criminal Jurisdiction in Indian Country, Firearms Instruction

View Evidence Solutions, Inc,'s Consulting Profile.

Keith M. Cianfrani, MAS, CRSP, a retired U.S. Army Lieutenant Colonel, the founder and owner, has over 30 years of aviation experience. He is a master army aviator, aviation safety officer, commercial pilot, instructor pilot, and was an accident investigator for the U.S. Army Safety Center.

Background - Mr. Cianfrani is rated in both rotary wing and fixed wing aircraft. As a safety officer, he has managed safety programs in organizations with over 100 aircraft stationed throughout 5 states. Mr. Cianfrani is currently an instructor for Embry Riddle Aeronautical University and Kansas State University. He is also presently attending Florida Institute of Technology (FIT) as a PhD Student in Aviation Science.

Mr. Cianfrani is a certified Flight Instructor (CFI) and has also worked in the civilian, commercial aviation industry. He has been flying for companies such as Petroleum Helicopters, Damin Aviation, Keystone Helicopters, Island Helicopters, and Chopper 6 and Chopper 3 in Philadelphia. He also has experience in the flight for life, aero medical evacuation industry.

Litigation Support - Keith Cianfrani specializes in Human Factors and Material Failure in Aviation Accident Investigations. He serves as an aviation safety consultant for the Federal Aviation Administration and FIT. An IS-BAO Certified Safety Auditor, he provides safety evaluations in accordance with Federal Aviation Regulations. His services are available nationally and internationally and include written reports, depositions, and trial testimony as needed.

Areas of Expertise:

Pilot / Crew Performance Human Factors Maintenance Environmental Factors Meteorological Factors

Safety Training Material Factors Aviation Accident Reconstruction FAA Regulatory Compliance Safety Audits

View Keith Cianfrani's Consulting Profile.

Quentin Brasie, Chairman and CEO, has over 33 years of experience in the Aviation Industry. A Federally licensed Airframe and Powerplant (A&P) mechanic, he is familiar with a wide variety of aviation assets including aircrafts, engines, spare parts, and flight simulators.

Background - Mr. Brasie began his career with the United States Air Force. Following his honorable discharge from the armed forces, Mr. Brasie served as a line mechanic for New York Air and American Airlines. His expertise in the industry led to management positions with Discovery Airways, and Avitas, Inc. He was a founding partner of Aviation Solutions, Inc., based in Manassas, Virginia, and held numerous executive positions, including vice president. In July of 2000, Mr. Brasie founded ACI Aviation Consulting where he is responsible for the day-to-day operations of the corporation.

Mr. Brasie is the Editor-In-Chief and owner of The Airliner Price Guide publication. Established in 1985, the publication provides current market values for commercial aircraft and engines for a wide industry subscriber base. He has also conducted industry presentations, published articles in numerous trade publications, and completed numerous manufacturer and airline courses.

Litigation Support - Mr. Brasie provides expert witness services on behalf of ACI to various law firms and state governments dealing with global aviation issues. He has been qualified in a Federal District Court as an expert in the Valuation of Aircraft and Aircraft Components, and in the Maintenance Programs for Aircraft and Aircraft Components. Mr. Brasie has conducted industry presentations, published articles in numerous trade publications, completed numerous manufacturer and airline courses, and holds an FAA A&P license.

Mr. Brasie's expertise is available to counsel representing both Plaintiff and Defendant. His client list includes Arizona Attorney General’s Office, Nolan & Heller, LLP., Ravitz and Pallas, P.C., Andrews & Kurth, KMZ Rosenman, Skadden, Arps, Meagher, Flom, LLP., John Kalled Law Firm, Emmet Marvin & Martin, Squire Sanders and Hoskin, Farina, and Aldrich & Kampf to name a few.

View Quentin Brasie's Consulting Profile.