This webpage is under construction. Education is one of our cornerstones; therefore, this page will be intended to provide some helpful insight into what we're all about. As a matter of fact, we've published a book through SAE International titled, "Basic Science and Art of Aircraft Wreckage Reconstruction" (https://www.sae.org/publications/books/content/r-480/) - here's the chapter/section listing ...

1.    Perspectives on Investigations and Investigators 

  •   Basic anatomy of an accident and its reconstruction

  •   Why are aircraft accidents investigated? 

  •   The human factors aspect

  •   Requirements to become an investigator

  •   Generalists and specialists

  •   “Heavy iron” versus most general aviation investigators 

  •   When consultants/experts become involved

  •   Space is the next frontier

2.    Back to Basics 

  •   Physical evidence is King

  •   Close calls 

  •   One piece at a time

  •   Scientific method 

  •   Nine-box matrix 

  •   Consider even the absurd 

  •   Consequences of incomplete and inaccurate findings

  •   Summary of lessons learned

3.    On-Scene Investigation 

  •   Before the investigation team arrived? 

  •   Basic investigation gear 

  •   Safety considerations 

  •   Emotional considerations 

  •   Accident scene documentation 

  •   Wreckage layout and recovery

  •   Exemplar aircraft inspections 

  •   Tips on photo documentation 

  •   Occupant injuries 

  •   Witness interviews and statements 

  •   Understanding the news media 

4.    “Kickin Tin” 

  •   Wreckage distribution 

  •   Airframe structural damage 

  •   Cable-driven flight control trim tab systems

  •   Electric motor-driven actuators

  •   Propeller damage and blade deformation 

  •   Turbine engine damage

  •   Cockpit instrumentation 

  •   Who was flying the aircraft? 

  •   Basic failure analysis of metal 

  •   Basic composite failure analysis 

5.    Crashworthiness Analysis 

  •   Implementing crashworthiness investigations 

  •   Aircraft design expectations 

  •   Crash load evaluation 

  •   Using g-load survivability limits to look deeper 

  •   Emergency egress issues 

 

6.    In-Flight Breakups 

  •   Behavior of separated and falling parts 

  •   Piecing the wreckage together 

  •   Flutter 

  •   Aircraft performance 

  •   Human factors causing loss of control 

7.    Mid-Air Collisions 

  •   Pilot awareness 

  •   See and avoid issues

  •   Structural impact and scratch marks 

8.    Fire and Explosions

  •   General aspects of aircraft fires

  •   Post-impact and ground fires

  •   In-flight fires

  •   Determining origin of fires

  •   Types of aircraft explosions

  •   Damage caused by detonation

  •   Damage caused by deflagration

© 2019 by Knutson Aviation Services

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