On the evening of January 29, 2019, a Guardian Flight King Air 200, tail number N13LY, disappeared while on approach to Kake, Alaska. The three-person crew consisted of 43-year-old flight paramedic Margaret Langston of Juneau, 63-year-old pilot Patrick Coyle, and 30-year-old flight nurse Stacie Rae Morse. Radar showed the aircraft enter a rapid descent, losing 2,575 feet in 14 seconds before it disappeared from radar over Frederick Sound.

Debris believed to be from the plane was found about 22 miles west of Kake. Most of the wreckage was later located on the ocean floor at roughly 500 feet, scattered across a large debris field. The cockpit voice recorder recovered was inoperative since 2015, and the National Transportation Safety Board concluded the aircraft suffered a loss of control for reasons that could not be determined. Despite extensive search and recovery efforts, the remains of Langston, Coyle, and Morse were never recovered.

If anyone has information about the flight, the last known position over Frederick Sound, or recovery efforts related to this crash, please share what is known.