2 fatalities

Helicopter Missing After Fish Spotting Flight Off Papua New Guinea (N5172K)

Pacific Ocean, PO, US

On November 7, 1993, a Hughes 369D (registration N5172K) operated by Big Eye Helicopters Inc. was involved in an aviation accident near Pacific Ocean, PO. 2 people were killed. Investigators recorded the probable cause as: AN UNDETERMINED EVENT THAT RESULTED IN THE ACCIDENT. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

A helicopter disappeared from radar about 27 miles from its mother vessel in the Bismarck Sea. Debris and personal items were found, but the two crew members were not located and are presumed fatally injured. The helicopter is presumed destroyed.

Accident Details

A helicopter departed a fishing vessel on a fish spotting flight with a pilot and one crew member. Approximately one and a half hours after departure, the helicopter disappeared from radar about 27 miles from the vessel. No communications were received from the helicopter during the flight.

Search and Recovery

A search of the area revealed floating debris, aircraft fragments, and personal items. The two crew members were not located and were presumed to have received fatal injuries. The helicopter was not recovered and was presumed to have been destroyed.

Location

The accident occurred about 375 miles northeast of Madang, Papua New Guinea, in the Bismarck Sea.

Frequently asked questions

What happened in the 7 Nov 1993 Hughes 369D accident near Pacific Ocean, PO?

A helicopter disappeared from radar about 27 miles from its mother vessel in the Bismarck Sea. Debris and personal items were found, but the two crew members were not located and are presumed fatally injured. The helicopter is presumed destroyed.

Were there any fatalities in the 7 Nov 1993 Hughes 369D accident?

The accident was fatal, resulting in 2 fatalities.

What aircraft was involved and where did it happen?

The accident on 7 Nov 1993 involved a Hughes 369D, registration N5172K, operated by Big Eye Helicopters Inc., at Pacific Ocean, PO.

What was the probable cause of the accident?

AN UNDETERMINED EVENT THAT RESULTED IN THE ACCIDENT.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X13752. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.