CHI08CA023

NTSB accident investigation · Robinson R44 Raven II · Morrison, MO · October 19, 2007

Accident · No injuriesData collectionFinal report
Date
October 19, 2007, 16:35 local (21:35 UTC)
Place
Morrison, MO
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Landing
Aircraft
N3246HRobinson R44 Raven II
Weather
Visual (VMC) · Day
Status
Completed · report December 20, 2007
Report
Approved by Office Director
Parties
FAA-STL-FSDO
FAA report
20071019825139A
Case key
67030

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Loss of control on the ground due to aircraft control not being maintained by the pilot. Contributing factors were the gusting winds and the uneven ground.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterLanding - flare/touchdown
Weather condition - gustsFactor
Terrain condition - rough/unevenFactor
Aircraft control - not maintainedPilot in commandCause
Roll overLanding - flare/touchdown

Analysis

The helicopter was substantially damaged following a loss of control while landing. The accident occurred during an off airport landing on uneven, soft terrain in gusty wind conditions. The pilot set the back of the skids down and was lowering the nose when the helicopter rocked "deeply" forward, then back and to the left. The helicopter then rolled over coming to rest on its left side. The pilot reported the local winds were at 15 knots, gusting to 25 knots.

Factual narrative

The helicopter was substantially damaged following a loss of control while landing. The accident occurred during an off airport landing on uneven, soft terrain in gusty wind conditions. The pilot set the back of the skids down and was lowering the nose when the helicopter rocked "deeply" forward, then back and to the left. The helicopter then rolled over coming to rest on its left side. The pilot reported the local winds were at 15 knots, gusting to 25 knots.

Aircraft

Registration
N3246H
Reported as
Robinson R44 Raven II
Category
Helicopter
Serial number
11698
Engine
Textron Lycoming IO-540-AE1A5, 205 horsepower, turbo shaft
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Pilot
Airworthiness certificate
Standard, Normal
Departed
K26 · Carrollton, MO
Destination
Morrison, MO

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
54
Injuries
None
Certificate
Private
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
May 1, 2007
Seat
Right
Flight hours
2,360 total · 35 in this make and model · 47 in the last 90 days · 7 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 15 knots, gusting 25
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 59 °F
Altimeter
30.04 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.