- Date
- July 22, 2016, 16:00 local (21:00 UTC)
- Place
- Lake Mills, IA
- Injuries
- 1 minor
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N288NSBell OH 58A
- Defining event
- Maneuvering: Controlled flight into terr/obj (CFIT)
- Weather
- Visual (VMC) · Day
- Status
- Completed · report September 1, 2016
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA-Des Moines FSDO
- FAA report
- 20160722011409A
- Case key
- 93700
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 inadequate visual lookout, which resulted in a wire strike.
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.
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 commercial pilot was performing an agricultural application flight. The pilot reported that, while spraying a field, the helicopter struck a wire that he did not see. The pilot reported that after striking the wire, the helicopter came to a stop, and then the wire broke. The pilot flew the helicopter to the ground, and the helicopter hit hard and then flipped onto its side. The pilot reported no mechanical failures or malfunctions of the helicopter.
Factual narrative
On July 22, 2016, about 1600 central daylight time, a Bell OH-58A helicopter, N288NS, sustained substantial damage when it struck a wire and the ground during an aerial application pass near Lake Mills, Iowa. The pilot received minor injuries. The helicopter was registered to North Star Holdings, Inc., and operated by North Star Helicopters, Inc. under the provisions of 14 Code of Federal Regulations Part 137 as an agricultural flight. Visual meteorological conditions prevailed for the flight, which was not on a flight plan. The local flight originated from a farm near Northwood, Iowa, about 1430.The pilot reported that the while spraying a field, he hit a wire that he did not see. The wire went into the upper wire cutter, bringing the helicopter to a stop, and then the wire broke. He flew the helicopter to the ground, hitting hard and the helicopter flipped onto its side. He reported no mechanical failures or malfunctions of the helicopter.
Aircraft
- Registration
- N288NS
- Reported as
- Bell OH 58A (NO SERIES)
- Category
- Helicopter
- Serial number
- 70-15288
- Built
- 1970
- Airframe hours
- 9,862
- Engine
- Rolls Royce 250-T63-A720, 420 horsepower, turbo shaft
- Damage
- Substantial damage
- Fire
- Unknown
- Flight
- Aerial application · Part 137
- Operator
- North Star Helicopter Inc
- Registered owner
- North Star Holdings Inc
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · April 27, 2016
- Departed
- PVT · Northwood, IA
- Destination
- PVT · Northwood, IA
- Equipment
- None
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
- 52
- Injuries
- Minor
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, With waivers/limitations
- Last flight review
- April 16, 2016
- Seat
- Right
- Restraint
- 4-point
- Flight hours
- 8,712 total · 1,443 in this make and model · 8,362 as pilot in command · 19 in the last 90 days · 14 in the last 30 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 70° at 3 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 2,000 ft broken
- Temperature
- 82 °F, dew point 77 °F
- Altimeter
- 30.01 inHg
- Observed at
- KFXY, 9 nm away
Docket · 1
The files NTSB released with the investigation on August 8, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 MB 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.
Other investigations on N288NS · 1
Matched to the same aircraft by N-number and date.