Background
A certificated commercial pilot departed Skagway, Alaska, as the first of two airplanes conducting air tour flights over a national park. The standard route of flight after departure was to proceed southbound, climb over an area of steep mountainous terrain, then descend into an area known as Glacier Bay. The pilot had five passengers aboard.
Events
According to the pilot of the second tour airplane, low clouds, rain, and fog within the pass would not allow them to fly through. He and the accident pilot discussed optional flight routes. The accident pilot stated he would take a heading of 240 degrees and fly through to the other side. The second pilot replied that he thought this was a real bad idea and that he was not going to follow him. The accident pilot's final radio transmission included, "...I'm sure that it's clear on the other side. I'll see you on the other side." No further radio communications were received from the accident airplane.
Search and Wreckage
After being notified of an emergency locator transmitter (ELT) signal, a search was initiated about 1600. Poor weather conditions hampered rescue crews from reaching the accident site. About 1859, the wreckage was located on an area of steep, snow-covered mountainous terrain.
Toxicology
A toxicology examination of the pilot revealed the presence of prescription antidepressant drugs and codeine. The FAA prohibits the use of such drugs by pilots.