CEN11CA213

NTSB accident investigation · Robinson Helicopter R44 II · Glenwood Springs, CO · March 1, 2011

Accident · No injuriesData collectionFinal report
Date
March 1, 2011, 10:40 local (17:40 UTC)
Place
Glenwood Springs, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N74816Robinson Helicopter R44 II
Defining event
Takeoff: Dynamic rollover
Weather
Visual (VMC) · Day
Status
Completed · report July 21, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20110301002369A
Case key
78499

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

On this page

Probable cause

The pilot’s improper takeoff procedure, which resulted in a dynamic rollover when the left skid contacted the ground.

Findings · 1

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAll aircraft: 9,295 casesProbable cause

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

The pilot refueled his helicopter and was performing a takeoff from an area near the airport’s fuel pumps. As the helicopter began to lift, the pilot allowed the helicopter’s tail to remain in a low attitude. As a result, the aft end of the left skid contacted the ground and the helicopter experienced a dynamic rollover. The helicopter came to rest on its left side, resulting in substantial damage to the fuselage and tail boom. The pilot reported that there were no pre-impact mechanical malfunctions or failures that would have precluded normal operation.

Factual narrative

The pilot refueled his helicopter and was performing a takeoff from an area near the airport’s fuel pumps. As the helicopter began to lift, the pilot allowed the helicopter’s tail to remain in a low attitude. As a result, the aft end of the left skid contacted the ground and the helicopter experienced a dynamic rollover. The helicopter came to rest on its left side and the pilot was able to exit unassisted. The helicopter’s fuselage and tail boom sustained substantial damage. The pilot reported that there were no pre-impact mechanical malfunctions or failures that would have precluded normal operation.

Aircraft

Registration
N74816
Reported as
Robinson Helicopter R44 II
Category
Helicopter
Serial number
10982
Airframe hours
486
Engine
Lycoming IO-540, 205 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
244 Charlie Delta LLC
Registered owner
244 Charlie Delta LLC
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · February 11, 2011
Departed
GWS · Gleenwood Springs, CO
Destination
Carbondale, CO
Airport
GWS · Glenwood Springs Municipal

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
51
Injuries
None
Certificate
Private
Medical
Class 3, With waivers/limitations
Last flight review
February 15, 2011
Seat
Right
Flight hours
134 total · 18 in this make and model

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
41 °F

Docket · 1

The files NTSB released with the investigation on June 3, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 506 KB 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.