Guardian Flight’s search effort for its crew and aircraft that were due in Kake on Jan. 29 has detected an underwater beacon ping from the cockpit voice recorder, or black box.

Randy Lyman, Guardian Flight senior vice president of operations, said in a prepared statement on Tuesday that the ping will allow search crews to narrow down the location of the aircraft through triangulation. A Remotely Operated Underwater Vehicle will be used to visually spot the aircraft once the location of the aircraft is determined.

“Again, our thoughts, prayers and deepest heartfelt feelings are extended...