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Aviation safety reports, made easier to study

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NTSB Report

September 27, 2001 · Bell OH-58A · N923MC

Sevierville, TN

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
September 27, 2001
Injury Outcomes
No injuries (2 uninjured)
Location
Sevierville, TN
Aircraft
Bell OH-58A
Tail Number
N923MC
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MIA01LA231

The pilot stated that as he approached his landing zone, while about 3 feet agl, the helicopter veered to the left. He corrected using right cyclic and by lowering the collective. The helicopter touched down hard causing a tailrotor strike and the main rotor to strike the tail boom. Postcrash examination of the helicopter at the crash site by an FAA Inspector, and after recovery from the crash site by an FAA Inspector and a representative of Bell Helicopter confirmed that continuity of flight control components existed at the time of impact, and that there was freedom of movement throughout the flight control systems after recovery. The examination confirmed that there was a high rate of rotation of the drive train components at the time of impact. There were no preimpact airframe anomalies identified.

NTSB Probable Cause

The failure of the pilot to maintain control of the helicopter while approach to land resulting in a hard landing, a tail rotor ground strike, and the main rotor striking the tail boom.

Full Narrative

On September 27, 2001, about 1720 eastern daylight time, a Bell OH-58A, N923MC, registered to Vista-Dome Simulation Corporation, crashed during landing near Sevierville, Tennessee, while on a 14 CFR 91 aerial filming flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The helicopter received substantial damage and the commercial-rated pilot and one passenger were not injured. The flight originated from Sevierville, Tennessee, the same day, about 1645. The pilot stated that he was flying the helicopter from the right front seat and his passenger was in the left front seat. As he approached his landing zone, while about 3 feet agl, the helicopter veered to the left. He corrected using right cyclic and by lowering the collective. The helicopter touched down hard causing a tailrotor strike and the main rotor to strike the tail boom. Postcrash examination of the helicopter at the crash site by an FAA Inspector, and after recovery from the crash site by an FAA Inspector and a representative of Bell Helicopter confirmed that continuity of flight control components existed at the time of impact, and that there was freedom of movement throughout the flight control systems after recovery. The examination confirmed that there was a high rate of rotation of the drive train components at the time of impact. There were no preimpact airframe anomalies identified. Cyclic controls were installed in both the left and right front seat positions. (See Bell Helicopter report, an attachment to this report)

Flight

Event TypeAccident
Event Time17:20 EDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftBell OH-58A
Tail NumberN923MC
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · T63-A-720A · Turboshaft · 420
Seats3

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 63 · Second Class · None

Conditions

ConditionsVMC
LightDaylight
Wind280° @ 6 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point45 C
Altimeter30.01 inHg
Observation Time20:53
Weather SourceWFAC

Appendix: Source Data