Casualties unknown

Helicopter suffers sudden power loss during coastal flight due to broken pneumatic line (N3179X)

Waimea, HI, US

On January 16, 1986, a Bell 206B-3 (registration N3179X) was involved in an aviation accident near Waimea, HI. Investigators recorded the probable cause as: The sudden loss of power due to a cracked and broken pneumatic line at the fuel controller. 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 2026-06-22Data APIEditorial standards

A helicopter experienced a sudden loss of power while flying along a coastal area at approximately 500 feet above ground level, prompting the pilot to execute an autorotative landing on a beach.

What happened

The aircraft was operating during a local flight when the pilot descended to approximately 500 feet above ground level (AGL). While flying along a coastal area, the helicopter suddenly lost power. The pilot initiated an autorotative landing and touched down on a beach, resulting in a hard landing.

The investigation

A post-accident examination of the aircraft revealed a cracked and broken pneumatic line located at the fuel controller.

Probable cause

The sudden loss of power due to a cracked and broken pneumatic line at the fuel controller.

Frequently asked questions

What happened in the 16 Jan 1986 Bell 206B-3 accident near Waimea, HI?

A helicopter experienced a sudden loss of power while flying along a coastal area at approximately 500 feet above ground level, prompting the pilot to execute an autorotative landing on a beach.

What aircraft was involved and where did it happen?

The accident on 16 Jan 1986 involved a Bell 206B-3, registration N3179X, at Waimea, HI.

What was the probable cause of the accident?

The sudden loss of power due to a cracked and broken pneumatic line at the fuel controller.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20010110X00204. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.