Casualties unknown

Helicopter Performs Hard Landing During Autorotation After Reported Engine Failure (N5007G)

Shandon, CA, US

On August 31, 1983, a Hughes 369D (registration N5007G) was involved in an aviation accident near Shandon, CA. 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 made a hard landing during autorotation after the pilot reported an engine failure at about 50 feet AGL, 15 minutes after takeoff. Post-accident engine tests showed it met new engine specifications.

Incident Overview

Approximately 15 minutes after takeoff, a helicopter experienced a reported engine failure at about 50 feet above ground level (AGL). The pilot subsequently performed an autorotation, during which the helicopter made a hard landing.

Post-Accident Investigation

Following the incident, the engine was inspected at Long Beach. It was test-run while installed in the aircraft and later placed in a test cell for additional evaluation. Results from these tests indicated that the engine met the specifications of a new engine.

Component Testing

All tests conducted on the aircraft and engine components were satisfactory. No anomalies were noted that would preclude normal operation of the aircraft or engine.

Frequently asked questions

What happened in the 31 Aug 1983 Hughes 369D accident near Shandon, CA?

A helicopter made a hard landing during autorotation after the pilot reported an engine failure at about 50 feet AGL, 15 minutes after takeoff. Post-accident engine tests showed it met new engine specifications.

What aircraft was involved and where did it happen?

The accident on 31 Aug 1983 involved a Hughes 369D, registration N5007G, at Shandon, CA.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X44199. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.