Tamarack Aerospace has returned to installing its Atlas active winglets following the decision of U.S. and European authorities this month to permit aircraft equipped with the winglets to begin flying again. Airworthiness Directives (AD) in the U.S. and Europe had grounded Atlas-equipped Cessna Citation CJ1s, CJ2s, and CJ3s and halted further installations, leading the company to Chapter 11 reorganization bankruptcy in June. A CJ1 at Tamarack’s Sandpoint, Idaho facility is now receiving the first new installation of Atlas winglets.

“In the last few weeks, Tamarack has taken three deposits and scheduled two installations with more sales in the pipeline,” said Tamarack CEO Nick Guida. “We are also working with our nine U.S. and seven international service centers to support their sales and installation efforts.”

The ADs were issued in April by EASA and in May by the FAA over concerns that a malfunctioning Tamarack active camber surface within the winglet system could lead to loss of control. EASA lifted its AD earlier this month and the FAA issued an alternative method of compliance (AMOC) on July 10 that effectively lifted flight restrictions on Atlas-equipped Citations.

“The fact that the resolution to the AD was incorporating the preexisting Service Bulletins (SB) we provided to customers at no cost starting 18 months ago is an example of our commitment to safety and to our customers,” Guida explained.