GAA17CA307

NTSB accident investigation · Cessna U206 · Diamond Point, NY · May 17, 2017

Accident · No injuriesData collectionFinal report
Date
May 17, 2017, 17:05 local (21:05 UTC)
Place
Diamond Point, NY
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N4804FCessna U206
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report August 3, 2017
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20170517018941A
Case key
95250

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot’s failure to maintain directional control during the takeoff roll with gusting wind conditions.

Findings · 4

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna U206A: 1 caseAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCessna U206A: 3 casesAll aircraft: 9,295 casesProbable cause
Object/animal/substance: aircraftEnvironmental issues › Physical environment · Effect on operationCessna U206A: 1 caseAll aircraft: 116 cases
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on operationCessna U206A: 1 caseAll aircraft: 1,199 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, during the takeoff roll, the airplane encountered a wind gust and veered left off the runway centerline. He added that the airplane became airborne but that he did not have "enough time" to avoid a parked helicopter. Subsequently, the left wing impacted the helicopter. He then reduced the engine power, and the airplane landed without further incident. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation system about 5 nautical miles from the accident site reported that, about the time of the accident, the wind was from 230° at 12 knots, gusting to 17 knots. The pilot was departing on runway 22.

Factual narrative

The pilot reported that, during the takeoff roll, the airplane encountered a gust of wind and veered left off the runway centerline. He added, that the airplane became airborne, but that he did not have "enough time" to avoid a parked helicopter. Subsequently, the left wing impacted the helicopter. He then reduced the engine power and the airplane landed without further incident. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation system about 5 nautical miles from the accident site, about the time of the accident, reported the wind was from 230° at 12 knots, gusting to 17 knots. The pilot was departing on runway 22.

Aircraft

Registration
N4804F
Reported as
Cessna U206 (A)
Category
Airplane
Serial number
U206-0504
Built
1966
Airframe hours
2,739.9
Engine
Continental IO-520-A, 285 horsepower, reciprocating
Damage
Substantial damage
Flight
Skydiving · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 13, 2017
Departed
83K · Diamond Point, NY
Destination
83K · Diamond Point, NY
Airport
83K · Harris, runway 22, 2,300 × 40 ft, grass/turf
Equipment
Stall warning system

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
63
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
March 15, 2017
Seat
Left
Restraint
Lap only
Flight hours
5,230 total · 186 in this make and model · 5,085 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 12 knots, gusting 17
Visibility
10 statute miles
Lowest ceiling
None
Temperature
90 °F, dew point 54 °F
Altimeter
29.79 inHg
Observed at
KGFL, 5 nm away

Docket · 2

The files NTSB released with the investigation on July 17, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.5 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.