On July 18, 1981, an aircraft carrying four people failed to arrive at its destination between Port Walter and Port Lucy, Alaska. Among those on board was 23-year-old Judy Riddell of Juneau. The others were Randall Riddell, 26; Norman Riddell, 60; and Rob Mourant, 23. The plane was reported overdue and a search followed, but the aircraft never reached Port Lucy and no confirmed wreckage or survivors have been publicly reported.

The terrain in southeastern Alaska is rugged and the case has remained unresolved; the four are officially presumed to have perished. Few new leads have emerged over the decades, leaving many unanswered questions for the families and community.

If anyone has memories of the flight, the passengers, or information about that July 1981 disappearance, please share what is known.