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NTSB Report

April 6, 2011 · Bell 47G · N9FK

Torrance, CA

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
April 6, 2011
Injury Outcomes
1 injury (1 minor injury)
Location
Torrance, CA
Aircraft
Bell 47G
Tail Number
N9FK
Operator
Rodriguez Danny
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
WPR11LA190

The helicopter pilot reported that he applied power and pitch for takeoff and lifted up about 2 to 3 feet while starting a pedal turn to the right. He said that the helicopter then abruptly started to turn hard to the right and that he then had no control over the helicopter, so he immediately lowered the collective to stop the rotation. When the helicopter touched down, it immediately rolled onto its right side, shattering the cabin bubble and the main rotor blades. An airport operations employee heard the noise and responded to assist the pilot. He said that the pilot told him that he was in a hover just above the ground and that he “was cleared for takeoff and it just went over.” No gusts were reported on the day of the accident. The pilot did not report any known preimpact mechanical discrepancies with the helicopter. It is likely that the pilot simultaneously performed a right-pedal turn while transitioning to forward flight at too low an altitude.

NTSB Probable Cause

The pilot did not maintain adequate altitude during takeoff, which resulted in ground contact and a dynamic rollover.

Full Narrative

On April 6, 2011, at 1355 Pacific daylight time, a Bell 47G helicopter, N9FK, sustained substantial damage when it impacted terrain following a loss of control during departure at Zamperini Field (TOA), Torrance, California. The private pilot, the sole occupant, received minor injuries. The owner/pilot was operating the helicopter under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed for the personal cross-country flight, which was originating at the time of the accident. A flight plan had not been filed. The pilot reported that he received clearance to take off. He applied power and pitch, and lifted up approximately 2 to 3 feet while starting a pedal turn to the right. He stated that the helicopter "abruptly started to turn right hard and he had no control over the helicopter." He immediately lowered the collective to stop the rotation. When the helicopter touched down, it immediately rolled onto its right side, shattering the cabin bubble and main rotor blades. Additionally, the fuselage was distorted and bent. An airport operations employee heard the noise and responded to assist the pilot. He said the pilot told him that he “was in a hover just above the ground. I was cleared for takeoff and it just went over.” The wind reported at 1357, at Torrance, was from 270 degrees at 8 knots; no wind gusts were reported during the 24-hour period on the day of the accident. The pilot did not report any known preimpact mechanical discrepancies with the helicopter.

Flight

Event TypeAccident
Event Time13:55 PDT
Nearest AirportZamperini Field (0nm)
Flight Plan FiledUnknown
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftBell 47G
Tail NumberN9FK
Aircraft CategoryHeli
DamageSubstantial
OperatorRodriguez Danny
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6V350a · Reciprocating · 235
Seats3

People & Injuries

Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 62 · Third Class · Minor

Conditions

ConditionsVMC
LightDaylight
Wind270° @ 8 kt
Visibility7 sm
CeilingBroken clouds 8000 ft
Temperature / Dew Point68 F / 54
Altimeter29.97 inHg
Observation Time20:57
Weather SourceWFAC

Appendix: Source Data