Casualties unknown

Restricted Category Helicopter Makes Hard Landing After Power Line Climb (N8135J)

King City, CA, US

On October 7, 1996, a Bell 47G-5A (registration N8135J) was involved in an aviation accident near King City, CA. Investigators recorded the probable cause as: the pilot's failure to maintain adequate rotor rpm during the takeoff initial climb. 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 pilot refueled a restricted category helicopter with 80 gallons of defoliant and took off from a farm field. During climb over power lines, the pilot allowed engine, rotor rpm, and airspeed to decrease; an attempt to regain them was unsuccessful, resulting in a hard touchdown.

Incident Overview

A pilot operating a restricted category helicopter experienced a hard landing after departing from a farm field. The helicopter had been refilled with 80 gallons of defoliant prior to departure. The takeoff was conducted from a field adjacent to a country road.

Sequence of Events

The pilot had previously completed two departures from the same location and was aware of nearby power lines. During the climb over the power lines, the pilot permitted the engine, rotor rpm, and airspeed to decrease. Recognizing the situation, the pilot attempted to regain airspeed and rotor rpm by lowering the helicopter's nose. However, these efforts did not succeed, and the helicopter subsequently made a hard touchdown in the field.

Additional Information

The helicopter is categorized as restricted, which often imposes limitations on its operation. The pilot's previous familiarity with the departure site, including knowledge of the power lines, was noted. No further details about the helicopter's specifications, registration, or the outcome of the flight have been reported.

Frequently asked questions

What happened in the 7 Oct 1996 Bell 47G-5A accident near King City, CA?

A pilot refueled a restricted category helicopter with 80 gallons of defoliant and took off from a farm field. During climb over power lines, the pilot allowed engine, rotor rpm, and airspeed to decrease; an attempt to regain them was unsuccessful, resulting in a hard touchdown.

What aircraft was involved and where did it happen?

The accident on 7 Oct 1996 involved a Bell 47G-5A, registration N8135J, at King City, CA.

What was the probable cause of the accident?

the pilot's failure to maintain adequate rotor rpm during the takeoff initial climb.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X06916. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.