BELL OH58A

Ulysses, KS — May 18, 2021

Event Information

DateMay 18, 2021
Event TypeACC
NTSB NumberCEN21LA225
Event ID20210519103107
LocationUlysses, KS
CountryUSA
Coordinates37.56562, -101.37033
Highest InjuryFATL

Aircraft

MakeBELL
ModelOH58A
CategoryHELI
FAR Part137
Aircraft DamageDEST

Conditions

Light ConditionDAYL
WeatherVMC

Injuries

Fatal1
Serious0
Minor0
None0
Total Injured1

Event Location

Probable Cause

The pilot’s failure to maintain clearance from a power line during the aerial application flight, which resulted in collision with the power line and subsequent impact with terrain.

Full Narrative

HISTORY OF FLIGHTOn May 18, 2021, about 1430 central daylight time, a Bell OH-58A helicopter, N176SJ, was destroyed when it was involved in an accident near Ulysses, Kansas. The pilot was fatally injured. The helicopter was operated as a Title 14 Code of Federal Regulations Part 137 aerial application flight.
The helicopter impacted a powerline while the pilot was applying chemicals to a field. The operator reported that the accident pass was the pilot’s 21st pass over the field, and that the pilot had been maneuvering over the powerline during the previous passes. The loader who was at the scene reported that the helicopter passed the wires, and he heard two loud pops. The helicopter collided with terrain about 60° nose-low, and the loader called emergency services. WRECKAGE AND IMPACT INFORMATIONThe helicopter impacted a field and came to rest on its side about 150 yards from the power lines. All major components of the helicopter were located at the accident site. The forward cockpit area was crushed and distorted. Both main rotor blades were damaged and remained attached to the main rotor hub. The main rotor hub was impact separated from the transmission. Flight control continuity was established throughout the helicopter through areas that were fractured with signatures consistent with overload. A portion of the power line was found on the ground between the wire strike location and the wreckage. The helicopter was equipped with wire cutters, but they did not display signatures of damage or wire contact. MEDICAL AND PATHOLOGICAL INFORMATIONThe pilot succumbed to his injuries in the hospital 2 days after the accident. The Kearny County, Kansas, coroner issued a certificate of death and listed the cause of death as massive blunt trauma (to) head, torso, and extremities. Toxicology testing on the pilot’s hospital admission blood was positive for norketamine (metabolite of anesthetic ketamine), famotidine (antacid), and ondansetron (antinausea medication). These medications were likely given to the pilot during postaccident medical treatment.

About This NTSB Record

This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.

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