“She was an up and coming research professional, who embodied the characteristics most valuable to our team and was truly committed to improving the health and well-being of Alaska Native people,” Andy Teuber, the chairman and president of the health consortium, said in the statement.

Mr. Johnson told reporters on Tuesday that weather conditions in the area had been good at the time of Monday’s crash, with winds of 10 miles per hour, visibility in excess of 10 miles and “a light chop on the water.”

He said it was “way too early to speculate” about the cause of the crash. Investigators will spend several days in the area, and would not assume a connection between last week’s crash and the most recent one, he said.

“I have to stress that each one of these are separate events, they are being investigated separately, we have two separate investigators in charge that are looking at different things,” he said. “The accidents are different in nature, but obviously Taquan is the common denominator here.”

Karl S. Cook, the mayor of the Metlakatla Indian Community, expressed his support for Taquan Air in a statement on Tuesday.

“The losses this organization has faced in the past week have been devastating,” he wrote. “We stand with Taquan Air, in appreciation of all this company does for South East Alaska in general, and Metlakatla in particular.”

Last week’s crash killed six people — one pilot and five cruise ship passengers — when a Taquan Air plane collided in midair with a smaller plane. Ten others were injured.