CEN14CA223

NTSB accident investigation · Robinson Helicopter R44 II · Liberty, MO · April 25, 2014

Accident · No injuriesData collectionFinal report
Date
April 25, 2014, 13:15 local (18:15 UTC)
Place
Liberty, MO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N32VBRobinson Helicopter R44 II
Defining event
Landing-flare/touchdown: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report June 5, 2014
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA
FAA report
20140425016179A
Case key
89130

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

The pilot's failure to maintain directional control while operating in gusty wind conditions at a low altitude.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedRobinson Helicopter R44 II: 17 casesAll aircraft: 3,958 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on operationRobinson Helicopter R44 II: 10 casesAll aircraft: 1,199 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

Upon arrival at the destination airport, the pilot hovered the helicopter about 2 feet above the ground and prepared to land. The pilot noted that during the hover while the nose of the helicopter was pointed east, the wind shifted direction and gusted from the west. The helicopter's tail section raised and the nose lowered, which allowed the main rotor blades to strike the ground. The helicopter rolled over on its left side and sustained substantial damage to the main rotor blades and fuselage. The Federal Aviation Administration inspector responded to the scene; an examination of the helicopter was conducted and did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal operation. The pilot noted that if he had kept the helicopter's nose pointed into the wind then the accident might not have occurred.

Factual narrative

Upon arrival at the destination airport, the pilot hovered the helicopter about 2 feet above the ground and prepared to land. The pilot noted that during the hover while the nose of the helicopter was pointed east, the wind shifted direction and gusted from the west. The helicopter's tail section raised and the nose lowered, which allowed the main rotor blades to strike the ground. The helicopter rolled over on its left side and sustained substantial damage to the main rotor blades and fuselage. The Federal Aviation Administration inspector responded to the scene; an examination of the helicopter was conducted and did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal operation. The pilot noted that if he had kept the helicopter's nose pointed into the wind then the accident might not have occurred.

Aircraft

Registration
N32VB
Reported as
Robinson Helicopter R44 II (II)
Category
Helicopter
Serial number
10636
Built
2005
Airframe hours
1,217
Engine
Lycoming IO-540, 245 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Eid-Co
Registered owner
Eid-Co
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 25, 2013 · 42 hours before
Departed
POF · Poplar Bluff, MO
Destination
0N0 · Liberty, MO
Airport
0N0 · Roosterville

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
73
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
June 25, 2013
Seat
Right
Restraint
3-point
Flight hours
4,088 total · 713 in this make and model · 11 in the last 90 days · 11 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 12 knots
Visibility
10 statute miles
Temperature
72 °F, dew point 45 °F
Altimeter
29.92 inHg
Observed at
KMCI, 13 nm away

Docket · 3

The files NTSB released with the investigation on May 21, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.1 MB in all.

FAA reports on this event · 1

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