Avionics News July 2019 - 26

ADS-B IN OPTIONS ABOUND
Continued from page 25

are less likely for aircraft equipped with ADS-B In. The
data came from a paper by D. Howell and J. King of
the Regulus Group, which provides system engineering,
program management, and air traffic support for multiple
FAA and Department of Defense programs.
Titled, "Measured impact of ADS-B In applications
on general aviation and air taxi accident rates," it was
prepared for presentation at the 38th Digital Avionics
Systems Conference coming up in September 2019.
The Regulus researchers focused on five years of
safety data spanning 2013 to 2017. In their analysis,
Regulus researchers used a fleet method to identify
changes in accident levels.
They determined the number of ADS-B In-equipped
non-air carrier aircraft and compared that to the FAA's
fleet forecast for general aviation. Accidents, by type,

involving ADS-B In-equipped aircraft were divided by
the number of equipped operations.
The study found a 53% reduction in the likelihood
of an accident for general aviation and air taxi aircraft
equipped with ADS-B In. In addition to the 53%
reduction in the likelihood of an accident, the study also
found that the likelihood of a fatal accident decreased by
89% for aircraft using ADS-B In.
The findings echo predictions from a 2007 business
case prepared by the FAA's Surveillance and Broadcast
Services Program Office that helped the case for
providing ADS-B In's weather and traffic services. That
business case produced an estimate that ADS-B would
help to reduce four types of GA and air taxi accidents:
midair collisions; weather-related accidents; controlled
flight into terrain; and weather/CFIT accidents.
Don't be surprised if these results don't further boost
interest in ADS-B In and the benefits it offers for the cost
of a receiver. q

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26

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Avionics News July 2019

Table of Contents for the Digital Edition of Avionics News July 2019

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Avionics News July 2019 - Intro
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Avionics News July 2019 - Cover2
Avionics News July 2019 - 1
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