NTSB Revises Probable Cause of 2018 Citation Crash

Upon review, investigators determined that Tamarack winglets were not a factor.

Thursday, February 29, 2024 at 08:04 PM ET

Verified

The aircraft involved in the accident (not pictured) was equipped with Tamarack active winglets. [Courtesy: Tamarack Aerospace Group]

Key Takeaways:

The National Transportation Safety Board (NTSB) has reversed its original finding, now stating that Tamarack winglets did not contribute to a 2018 fatal Cessna CitationJet crash.
Tamarack Aerospace Group successfully petitioned the NTSB to reconsider its initial report, which had cited "asymmetric deployment" of their load alleviation system as the probable cause.
The NTSB's revised report attributes the accident to the pilot's inability to regain control after an uncommanded left roll, noting the pilot likely did not follow prescribed emergency procedures for speed reduction, while the reason for the initial roll remains undetermined.

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The National Transportation Safety Board (NTSB) has revised its assessment of a 2018 fatal accident involving a Cessna CitationJet CJ2+ equipped with Tamarack winglets, reversing its position that the winglet design contributed to the crash.

The aircraft was equipped with Tamarack Aerospace Group’s active technology load alleviation system (ATLAS), which operated independently of other airplane systems.