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NTSB Final Report: Rulo, NE

 

 

Location:

Rulo, NE

Accident Number:

GAA18CA408

Date & Time:

07/09/20182020 CDT

Registration:

N144DJ

Aircraft:

Robinson R44

Aircraft Damage:

Substantial

Defining Event:

Loss of control in flight

Injuries:

1 None

Flight Conducted Under:

Part 137: Agricultural


Analysis
According to the helicopter pilot, he was performing a night agricultural flight. During takeoff from a platform located on top of the tender, his collective application was too aggressive, and during the ascent, the engine sputtered. The engine rpm and main rotor rpm decreased, and he tried to regain the rpm by lowering the collective. The helicopter was moving forward and descending, so he applied aft cyclic to arrest the forward movement, and he attempted to land. The left skid touched down in the soft dirt, and the pilot applied aft cyclic to prevent a nose-over, but the main rotor blades struck the tailboom. The helicopter rolled forward, and its nose spun left before the helicopter came to rest on its left side.

The helicopter sustained substantial damage the fuselage, tail rotor drive system, and skid tubes.

The pilot reported that the accident could have been prevented if he had not been in a hurry to complete the operation and that there were no mechanical malfunctions or failures with the helicopter 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:

The pilot's improper collective application, which resulted in low rotor rpm during the takeoff climb and a subsequent ground collision. Contributing to the accident was the pilot’s self-induced pressure to complete the operation.

Administrative Information

Investigator In Charge (IIC):

Michael A Hicks

Adopted Date:

06/05/2019

Additional Participating Persons:

Greg Young; FAA; Lincoln, NE

Publish Date:

06/05/2019

Note:

This accident report documents the factual circumstances of this accident as described to the NTSB.

Investigation Docket:

http://dms.ntsb.gov/pubdms/search/dockList.cfm?mKey=97724



Findings

Aircraft

Prop/rotor parameters - Not attained/maintained (Cause)

Climb capability - Capability exceeded (Cause)

Personnel issues

Use of equip/system - Pilot (Cause)

Motivation/respond to pressure - Pilot (Factor)

Factual Information

History of Flight

Takeoff

Abrupt maneuver

Attempted remediation/recovery

Loss of control in flight (Defining event)

Emergency descent

Collision with terr/obj (non-CFIT)

Post-impact

Roll over

 

 

Pilot Information

Certificate:

Flight Instructor; Commercial

Age:

30, Male

Airplane Rating(s):

None

Seat Occupied:

Right

Other Aircraft Rating(s):

Helicopter

Restraint Used:

3-point

Instrument Rating(s):

Helicopter

Second Pilot Present:

No

Instructor Rating(s):

Helicopter

Toxicology Performed:

No

Medical Certification:

Class 2 Without Waivers/Limitations

Last FAA Medical Exam:

02/15/2018

Occupational Pilot:

Yes

Last Flight Review or Equivalent:

03/31/2018

Flight Time:

(Estimated) 7500 hours (Total, all aircraft), 1800 hours (Total, this make and model), 7380 hours (Pilot In Command, all aircraft), 100 hours (Last 90 days, all aircraft), 60 hours (Last 30 days, all aircraft), 12 hours (Last 24 hours, all aircraft)

 

 

Aircraft and Owner/Operator Information

Aircraft Make:

Robinson

Registration:

N144DJ

Model/Series:

R44 Undesignat

Aircraft Category:

Helicopter

Year of Manufacture:

2017

Amateur Built:

No

Airworthiness Certificate:

Normal

Serial Number:

2467

Landing Gear Type:

Skid;

Seats:

4

Date/Type of Last Inspection:

07/05/2018, 100 Hour

Certified Max Gross Wt.:

2400 lbs

Time Since Last Inspection:

 

Engines:

1 Reciprocating

Airframe Total Time:

767 Hours at time of accident

Engine Manufacturer:

Lycoming

ELT:

Not installed

Engine Model/Series:

O-540-F1B5

Registered Owner:

Dustin Johnson Aviation LLC.

Rated Power:

245 hp

Operator:

Cedar Ridge Aviation

Operating Certificate(s) Held:

Agricultural Aircraft (137)

Operator Does Business As:

Cedar Ridge Aviation

Operator Designator Code:

 

 

Meteorological Information and Flight Plan

Conditions at Accident Site:

Visual Conditions

Condition of Light:

Night

Observation Facility, Elevation:

KFNB, 980 ft msl

Distance from Accident Site:

8 Nautical Miles

Observation Time:

0153 UTC

Direction from Accident Site:

296°

Lowest Cloud Condition:

Clear

Visibility

10 Miles

Lowest Ceiling:

None

Visibility (RVR):

 

Wind Speed/Gusts:

4 knots /

Turbulence Type Forecast/Actual:

/

Wind Direction:

160°

Turbulence Severity Forecast/Actual:

/

Altimeter Setting:

30.12 inches Hg

Temperature/Dew Point:

28°C / 18°C

Precipitation and Obscuration:

No Obscuration; No Precipitation

Departure Point:

Rulo, NE

Type of Flight Plan Filed:

None

Destination:

Rulo, NE

Type of Clearance:

None

Departure Time:

2019 CDT

Type of Airspace:

Class G

 

 

Wreckage and Impact Information

Crew Injuries:

1 None

Aircraft Damage:

Substantial

Passenger Injuries:

N/A

Aircraft Fire:

None

Ground Injuries:

N/A

Aircraft Explosion:

None

Total Injuries:

1 None

Latitude, Longitude:

40.020000, -95.430000 (est)

 





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Created 12 days ago
by jhadmin

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