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NTSB Final Report: Maynard, IA

Location:

Maynard, Iowa

Accident Number:

CEN22LA366

Date & Time:

August 5, 2022, 11:00 Local

Registration:

N619RB

Aircraft:                             ROBINSON HELICOPTER COMPANY R44 II

Aircraft Damage:          Substantial

Defining Event:                  Collision with terr/obj (non-CFIT)       Injuries:                      1 None

Flight Conducted Under: Part 137: Agricultural

Analysis

The pilot reported that during an aerial application flight in a helicopter, he experienced a gust of wind that caused the nose of the helicopter to dip and lose altitude, which resulted in an impact with a powerline and substantial damage to the tailboom. The pilot reported that there were no mechanical malfunctions or anomalies that would have precluded normal operation.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be: An impact with a powerline as a result of an unexpected wind gust.

Findings

Environmental issues - Gusts - Effect on equipment

Environmental issues - Wire - Contributed to outcome


Factual Information

History of Flight

Maneuvering-low-alt flying          Collision with terr/obj (non-CFIT) (Defining event)

Pilot Information

Certificate:

Commercial

Age:

32,

Airplane Rating(s):

Single-engine land

Seat Occupied:

Right

Other Aircraft Rating(s):

Helicopter

Restraint Used:

5-point

Instrument Rating(s):

Helicopter

Second Pilot Present:

No

Instructor Rating(s):

None

Toxicology Performed:

 

Medical Certification:

Class 1 Without waivers/limitations

Last FAA Medical Exam:

November 8, 2021

Occupational Pilot:

Yes

Last Flight Review or Equivalent:

February 8, 2022

Flight Time:

1100 hours (Total, all aircraft), 600 hours (Total, this make and model), 900 hours (Pilot In Command, all aircraft), 300 hours (Last 90 days, all aircraft), 100 hours (Last 30 days, all aircraft), 10 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make:

ROBINSON HELICOPTER COMPANY

Registration:

N619RB

 

Model/Series:

R44 II

Aircraft Category:

Helicopter

 

Year of Manufacture:

2006

Amateur Built:

 

 

Airworthiness Certificate:

Normal; Restricted (Special)

Serial Number:

11087

 

Landing Gear Type:

None; Skid

Seats:

4

 

Date/Type of Last Inspection:

July 30, 2022 100 hour

Certified Max Gross Wt.:

 

 

Time Since Last Inspection:

41 Hrs

Engines:

1 Reciprocating

 

Airframe Total Time:

3769 Hrs at time of accident

Engine Manufacturer:

Lycoming

 

ELT:

Not installed

Engine Model/Series:

IO-540-AE1A5

 

Registered Owner:

 

Rated Power:

245 Horsepower

 

Operator:

 

Operating Certificate(s) Held:

Agricultural aircraft

(137)

Operator Does Business As:

Precision Aerial Service

Operator Designator Code:

 

 

Meteorological Information and Flight Plan

Conditions at Accident Site:

Visual (VMC)

Condition of Light:

Day

Observation Facility, Elevation:

KOLZ,1076 ft msl

Distance from Accident Site:

10 Nautical Miles

Observation Time:

10:55 Local

Direction from Accident Site:

214°

Lowest Cloud Condition:

Clear

Visibility

10 miles

Lowest Ceiling:

None

Visibility (RVR):

 

Wind Speed/Gusts:

7 knots / 12 knots

Turbulence Type Forecast/Actual:

/

Wind Direction:

150°

Turbulence Severity Forecast/Actual:

/

Altimeter Setting:

30.1 inches Hg

Temperature/Dew Point:

25°C / 21°C

Precipitation and Obscuration:

No Obscuration; No Precipitation

 

Departure Point:

Maynard, IA

Type of Flight Plan Filed:

None

Destination:

Maynard, IA

Type of Clearance:

None

Departure Time:

Type of Airspace:

Class G

Wreckage and Impact Information

Crew Injuries:

1

None

Aircraft Damage:

Substantial

Passenger Injuries:

 

 

Aircraft Fire:

None

Ground Injuries:

 

 

Aircraft Explosion:

None

Total Injuries:

1

None

Latitude, Longitude:

42.81996,-91.84472

Administrative Information

Investigator In Charge (IIC):

Williams, David

 

Additional Participating Persons:

James Konig; FAA; Des Moines, IA

 

Original Publish Date:

September 23, 2022                                  Investigation Class:

4

Note:

The NTSB did not travel to the scene of this accident.

 

Investigation Docket:

https://data.ntsb.gov/Docket?ProjectID=105687

 

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Created 64 days ago
by Admin

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