Premium on Safety - Issue 42 2021 - 7
Credit: National Transportation Safety Board - NTSB
NTSB Safety Recommendation
In May, the National Transportation Safety Board issued a safety recommendation that arose from a May 13, 2019, fatal midair
collision over George Inlet near Ketchikan, Alaska, involving a de Havilland DHC-2 Beaver and a de Havilland DHC-3 Otter.
Visibility analysis of both airplanes' cockpits found the Otter was
obscured from the Beaver pilot's view by the Beaver's cockpit
structure, right wing, and the passenger in the right front seat.
Similarly, the Beaver was intermittently obscured from the Otter
pilot's field of view by a window post-most critically during the
last 11 seconds before the collision. The NTSB listed this and the
absence of visual and aural alerts from both airplanes' traffic
display systems (while operating in a geographic area with a
high concentration of air tour activity) as the probable cause of
this accident.
In response to the NTSB safety recommendation, the AOPA Air
Safety Institute (ASI) recently update its Collision Avoidance
Safety Spotlight including techniques on using in-cockpit
ADS-B displays as an effective means of enhancing situational
awareness and traffic avoidance, proper scanning techniques,
and vision physiology.
-Machteld Smith, ASI
7
https://www.nbaa.org/wp-content/uploads/aircraft-operations/safety/NTSB-Recommendation-A-21-23-Reducing-the-Risk-of-Midair-Collisions.pdf
https://www.aopa.org/training-and-safety/online-learning/safety-spotlights/collision-avoidance
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Premium on Safety - Issue 42 2021
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Premium on Safety - Issue 42 2021 - Contents
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