Casualties unknown

1982-07-21: Hughes 369D (N58414) — Temsco Helicopters, Inc. — 35 W. OF Ketchi, AK

35 W. OF Ketchi, AK, US

On July 21, 1982, a Hughes 369D (registration N58414) operated by Temsco Helicopters, Inc. was involved in an aviation accident near 35 W. OF Ketchi, AK. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 2 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A helicopter conducting a sling load operation crashed on a rocky beach after the attached 50-foot cable became entangled in the tail rotor during descent, causing loss of control.

Incident Details

A helicopter was performing a sling load operation with a 50-foot cable attached. After moving the last sling load to a new drilling site, the pilot decided to keep the cable attached because no suitable landing area was nearby. The pilot later stated that the cable was trailing nicely as the helicopter descended down a 1,500-foot bluff above the main camp.

Sequence of Events

During the descent, as the pilot reduced the rate of descent and forward velocity and applied power, the cable became engaged in the tail rotor. This led to a loss of effective control of the helicopter. Subsequently, the pilot was unable to maintain controlled flight, and the helicopter crashed on a rocky beach.

Aftermath

Following the crash, the tail rotor and tail rotor gear box were found approximately 100 feet from the main wreckage of the helicopter.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20020917X04123. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.