미 해안경비대는 항로 조사를 한 뒤 돌아가던 패스파인더호가 항해 보조설비의 오류 탓에 사고를 낸 것으로 보고 있다.
The U.S. Coast Guard believes the Pathfinder, which was returning after investigating the route, was caused by an accident caused by an error in the navigation assistance facility.