CEN10CA428

NTSB accident investigation · Bell 206B · New Hampton, IA · July 23, 2010

Accident · No injuriesData collectionFinal report
Date
July 23, 2010, 18:18 local (23:18 UTC)
Place
New Hampton, IA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N40TABell 206B
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed · report December 20, 2010
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Des Moines FSDO
FAA report
20100723043489A
Case key
76737

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 failure to maintain clearance from wires.

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.

Action: incorrect action performancePersonnel issues › Action/decision · PilotBell 206B: 11 casesAll aircraft: 1,386 casesProbable cause
Object/animal/substance: wireEnvironmental issues › Physical environment · Contributed to outcomeBell 206B: 27 casesAll aircraft: 588 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

The pilot reported that he struck wires at the end of an aerial application spray run, which caused the helicopter to shake violently. During the emergency landing, the helicopter landed hard and rolled over on its right side. The helicopter sustained substantial damage to its fuselage, main rotor, and tail rotor. The pilot stated that he should have performed a better “recon” for obstacles and wires in the field.

Factual narrative

The pilot reported that he struck wires at the end of an aerial application spray run which caused the helicopter to shake violently. During the emergency landing, the helicopter landed hard and rolled over on its right side. The helicopter sustained substantial damage to its fuselage, main rotor, and tail rotor. The pilot stated that he should have performed a better “recon” for obstacles and wires in the field.

Aircraft

Registration
N40TA
Reported as
Bell 206B
Category
Helicopter
Serial number
2412
Engine
Rolls-Royce 250-C20B, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Topside Aviation Inc
Registered owner
Topside Aviation Inc
Airworthiness certificate
Special, Restricted (Special); Standard, Normal
Departed
New Hampton, IA
Destination
New Hampton, IA

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
42
Injuries
None
Certificates
Flight instructor, Commercial
Medical
Class 2
Seat
Right
Flight hours
5,970 total · 1,270 in this make and model

Weather

Conditions
Visual (VMC) · Day
Visibility
8 statute miles

Docket · 1

The files NTSB released with the investigation on September 8, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 764 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.