WPR26FA054

NTSB accident investigation · Hughes 369D · Pryor, OK · December 5, 2025

Accident · FatalClass 3 · FieldPreliminary report
Date
December 5, 2025, 08:58 local (14:58 UTC)
Place
Pryor, OK · field near power lines
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N161LAHughes 369D
Defining event
Maneuvering-low-alt flying: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Investigation ongoing
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
JBI Helicopter Services, Inc, Rolls-Royce Engines, Federal Aviation Administration
FAA report
20251205019029A
Case key
202111

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

On this page

Preliminary report

What NTSB knew early in the investigation. It may change in the final report.

On December 5, 2025, about 0858 central standard time, a Hughes 369D, N161LA, was substantially damaged when it was involved in an accident near Pryor, Oklahoma. The pilot was fatally injured. The helicopter was operated as a Title 14 Code of Federal Regulations Part 91 aerial observation flight. According to the operator, the helicopter departed from a landing zone about 1 mile from the accident site, about 28 minutes prior to the accident. The purpose of the flight was to visually monitor power line replacement operations. According to multiple witnesses who were employed by the power line company, the helicopter was hovering above and alongside the power distribution line being constructed. During the hover, the helicopter was moving at a slow rate of speed, about 4 knots, while the pilot was observing a device called a “sock,” being pulled along the power distribution line by ground based equipment. The witnesses reported that the helicopter suddenly pitched up to a near inverted attitude, flew backward, then turned and pitched straight down, toward the ground. They described the sequence as if it looked like the helicopter “flipped over on its back and fell to the ground.” Examination of the accident site revealed that the helicopter impacted an open field, in a nose low attitude, about 250 ft south of the power distribution line where the ‘sock’ was being observed. The first identifiable point of contact (FIPC) was a ground impression with various fragments of debris consistent with the forward fuselage and cabin area, and ground penetration scars consistent with the left and right skid toes. The skid toe and forward 2-3 ft of the right skid was separated from the rest of the right skid and remained impaled in the ground at the FIPC. The main wreckage came to rest on its right side, on a magnetic heading of about 040°, about 6 ft south of the FIPC. The majority of the debris field remained within about a 50 ft diameter of the main wreckage. One main rotor blade was located about 110 ft south of the main wreckage and another main rotor blade was located about 160 ft southeast of the main wreckage. A section of main rotor blade section was located about 160 ft south of the main wreckage, and one pitch horn was located about 170 ft south of the main wreckage. (See figure 1.) All major components of the helicopter were located at the accident site. Figure 1. Debris field The wreckage was recovered to a secure facility for further examination.

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.

Aircraft

Registration
N161LA
Reported as
Hughes 369D
Category
Helicopter
Serial number
711015D
Built
1981
Airframe hours
27,279.6
Damage
Substantial damage
Flight
Aerial observation · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · September 23, 2025 · 35.1 hours before
Departed
Pryor, OK
Equipment
Satellite tracking device, ADS-B, Handheld GPS

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.

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 10 knots
Visibility
0.25 statute miles
Lowest ceiling
300 ft overcast
Temperature
30 °F, dew point 30 °F
Altimeter
30.07 inHg
Observed at
KGCM, 12 nm away
METAR
METAR KGCM 051455Z AUTO 20010KT 1/4SM FZFG OVC003 M01/M01 A3007 RMK AO2=

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.