On March 3, Guardian Flight senior vice president of operations Randy Lyman announced that a search team has located what may be an unknown part of the Guardian King Air 200 aircraft that went missing in late January.

“In order to properly identify the object, our next step is to re-launch a submersible Remotely Operated Vehicle, which will take a number of days to accomplish,” said Lyman in a prepared statement. “We are hopeful that this might be a positive step in the process to recover our missing friends and return them to their families.”

The object is possibly 25 feet long by...