Casualties unknown

Aircraft Lost Over Pacific Ocean During Ferry Flight (N9423G)

Pacific Ocean, PO, US

On November 17, 1989, a Cessna U206E (registration N9423G) operated by Overseas Transport Company was involved in an aviation accident near Pacific Ocean, PO. Investigators recorded the probable cause as: UNDETERMINED. 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 ferry flight from Santa Barbara to Hawaii lost communication on November 16, 1989; no trace of aircraft or pilot was found after search.

Incident Overview

On November 16, 1989, an aircraft departed on a ferry flight from Santa Barbara, California, across the Pacific Ocean to the Hawaiian Islands. The pilot made a routine position report at 0846 hours while over DINTY intersection at an altitude of 8,000 feet MSL. This was the last known communication with the aircraft.

Search and Rescue Efforts

After no further communications were received from the aircraft by any ground facility, an Alert Notice (ALNOT) was issued. Search and rescue operations commenced at the flight's estimated fuel exhaustion time of 0216 hours on November 17, 1989. Despite these efforts, no trace of the aircraft or the pilot was found.

Frequently asked questions

What happened in the 17 Nov 1989 Cessna U206E accident near Pacific Ocean, PO?

A ferry flight from Santa Barbara to Hawaii lost communication on November 16, 1989; no trace of aircraft or pilot was found after search.

What aircraft was involved and where did it happen?

The accident on 17 Nov 1989 involved a Cessna U206E, registration N9423G, operated by Overseas Transport Company, at Pacific Ocean, PO.

What was the probable cause of the accident?

UNDETERMINED.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X29832. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.