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NTSB Preliminary Report: Blair, NE

 

 

Location:

Blair, NE

Accident Number:

CEN19LA240

Date & Time:

07/27/20191628 CDT

Registration:

N7508Z

Aircraft:

Robinson R44

Injuries:

1 Minor

Flight Conducted Under:

Part 137: Agricultural


On July 27, 2019, at 1628 central daylight time, a Robinson R44 II helicopter, N7508Z, impacted terrain following a reported system malfunction near Blair, Nebraska. The commercial pilot sustained minor injuries, and the helicopter sustained substantial damage to the main rotor blades and tailboom. The helicopter was registered to and operated by NE IA Helicopters, LLC, Tekamah, Nebraska, as a Title 14 Code of Federal Regulations Part 137 aerial application flight. Day visual meteorological conditions prevailed at the time of the accident, and a flight plan was not filed. The local flight departed an off-airport location for aerial application operations at an unknown time.

According to the pilot, after completing the last spray pass, he pulled the helicopter up over a tree ridge and began to head towards the south. At the top of the climb, the pilot noticed the engine RPM was beyond "max limitations" and the rotor RPM was in the green range. The pilot initiated a right pedal turn to the north and decreased the engine throttle in an attempt to lower the engine RPM. After adjusting the engine throttle, the engine RPM remained at the upper limit, but the rotor RPM decreased. The pilot then attempted to correct the rotor RPM by increasing the throttle; however, the rotor RPM began to fluctuate up and down, and continued to decrease. Due to being unable to control the rotor RPM, the pilot performed a forced landing to a corn field. During the forced landing, the main rotor blades impacted corn and terrain, and the helicopter came to rest upright.


Aircraft and Owner/Operator Information

Aircraft Make:

Robinson

Registration:

N7508Z

Model/Series:

R44 II

Aircraft Category:

Helicopter

Amateur Built:

No

 

 

Operator:

NE IA Helicopters, LLC

Operating Certificate(s) Held:

Agricultural Aircraft (137)

 

Meteorological Information and Flight Plan

Conditions at Accident Site:

Visual Conditions

Condition of Light:

Day

Observation Facility, Elevation:

 

Observation Time:

 

Distance from Accident Site:

 

Temperature/Dew Point:

 

Lowest Cloud Condition:

 

Wind Speed/Gusts, Direction:

10 knots / 180°

Lowest Ceiling:

 

Visibility

10 Miles

Altimeter Setting:

 

Type of Flight Plan Filed:

None

Departure Point:

Blair, NE

Destination:

Blair, NE

 

Wreckage and Impact Information

Crew Injuries:

1 Minor

Aircraft Damage:

Substantial

Passenger Injuries:

N/A

Aircraft Fire:

None

Ground Injuries:

N/A

Aircraft Explosion:

None

Total Injuries:

1 Minor

Latitude, Longitude:

41.564167, -96.140833 (est)

 

Administrative Information

Investigator In Charge (IIC):

Aaron M Sauer

Additional Participating Persons:

Greg Young; FAA; Lincoln, NE

Note:

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






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Created 12 days ago
by jhadmin

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