"National Transportation Safety Board"

Officials say that the wreckage location, in an area with deep crevasses, is permanently inaccessible.

Tweto was nationally known as the face of the Discovery TV series Flying Wild Alaska, which chronicles flights by family airline Era Alaska.

The settlement puts to rest a set of several lawsuits over the collision that killed then-state Rep. Gary Knopp and six other people.

The NTSB says a key component appears to have failed before the Otter crash in Washington, and the agency is calling on regulators to require operators to inspect their planes before their next flights.

Rescue crews were attempting Monday to reach a plane that crashed Sunday afternoon in mountains near Cordova. The crash left the pilot dead, according to the U.S. Coast Guard.

A passenger on an earlier flight described the pilot “ducking” under clouds during their trip.