Schweizer 269C-1 N9421K

Summary

On 5 June 2004 at about 23:00 local time, a Schweizer 269C-1 registered N9421K, operated by Helicopter Adventures Inc., was involved in an accident near Brentwood, California, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

5 June 2004 at 23:00

Classification

Accident

Location

Brentwood, California, United States

Nearest airport

Buchanan Field Airport (CCR)

Coordinates

37.8917, -121.7572

Aircraft

Schweizer 269C-1

Registration

N9421K

Category

Helicopter

Engines

1

Operator

Helicopter Adventures Inc.

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Concord → Concord

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

LAX04CA233

Nobody was injured.

the student's improper use of the cyclic control, the flight instructor's inadequate supervision, and his delayed remedial action. A factor in the accident was the CFI's diverted attention.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The helicopter collided with terrain and rolled over while hovering above flat terrain. The student pilot was practicing hover techniques by utilizing the controls individually. While the student was manipulating the cyclic, the certified flight instructor (CFI) noticed that the friction setting on the collective had been engaged. As the CFI was focusing on the friction setting for the collective, the student made a large forward cyclic input. The helicopter responded in an extreme nose down position and the CFI attempted to counteract the student's abrupt maneuver. The helicopter impacted terrain and rolled over the nose, coming to rest on the right side. The CFI reported no preimpact mechanical malfunctions or failures with the helicopter.

Quoted verbatim from the NTSB record.