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April 20, 2003 · Robinson R-22 BETA · N2341Z

Ardmore, OK

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
April 20, 2003
Injury Outcomes
No injuries (2 uninjured)
Location
Ardmore, OK
Aircraft
Robinson R-22 BETA
Tail Number
N2341Z
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW03LA140

The pilot stated he pulled the helicopter out of the hangar and faced it north into the light wind behind an airplane that was facing south. During lift off, the helicopter "suddenly moved forward." The pilot then heard a "scraping sound," as the helicopter rolled over and came to rest on its left side. The pilot further stated that as the helicopter lifted off, the airplane located behind the helicopter started its engine. The propeller blast from the parked airplane created a tailwind which the pilot did not expect and could not compensate.

NTSB Probable Cause

The pilot's failure to maintain directional control during liftoff. A contributing factor was the inadvertent encounter of propeller blast from the other airplane starting at the time of takeoff.

Full Narrative

On April 20, 2003, at 0900 central daylight time, a Robinson R-22 BETA helicopter, N2341Z, registered to and operated by Litchfield flying LTD, of Ardmore, Oklahoma, was substantially damaged when it rolled over during takeoff from Ardmore Downtown Executive Airport (1F0), near Ardmore, Oklahoma. The airline transport rated pilot and his passenger were not injured. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The local flight was originating at the time of the accident. The pilot, who had a total of 49 hours in the accident helicopter, reported in the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2) that he pulled the helicopter out of the hangar and faced it north into the light wind directly behind a Cessna 172 that was facing south. During lift off, the helicopter "suddenly moved forward." He then heard a "scraping sound," and the helicopter rolled over and came to rest on its left side. The pilot also reported that, just as the helicopter lifted off, the engine of the Cessna was started. The ensueing propeller blast from the Cessna created a tailwind relative to the helicopter. The pilot did not expect the wind blast and was unable to control the helicopter. An examination of the helicopter, by an FAA inspector, who responded to the accident site, revealed that both main rotor blades, both tail rotor blades, and the tail boom sustained structural damage.

Flight

Event TypeAccident
Event Time09:00 CDT
Nearest AirportArdmore Downtown Executive (0nm)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftRobinson R-22 BETA
Tail NumberN2341Z
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsTextron Lycoming · O-320-B2C · Reciprocating · 160
Seats2

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 60 · Second Class · None

Conditions

ConditionsVMC
LightDaylight
Wind330° @ 7 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point55 / 45 C
Altimeter30.12 inHg
Observation Time12:50
Weather SourceWFAC

Appendix: Source Data