CEN23LA237

NTSB accident investigation · Bell 206B · Pratt, KS · June 11, 2023

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
June 11, 2023, 14:06 local (19:06 UTC)
Place
Pratt, KS · ag field
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N85RBBell 206B
Defining event
Approach: Fuel exhaustion
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
FAA Flight Standards
FAA report
20230611008069A
Case key
192358

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

On this page

Probable cause

Fuel exhaustion due to the pilot’s inadequate preflight planning.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid managementBell 206B: 15 casesAll aircraft: 1,695 casesProbable cause
Planning/preparation: fuel planningPersonnel issues › Task performance · PilotBell 206B: 7 casesAll aircraft: 719 casesProbable cause

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.

Analysis

The pilot and a camera operator were conducting aerial pipeline surveillance at the time of the accident. At the initial planned fuel stop, the self-service Jet A fuel pump did not operate properly, and the pilot was unable to obtain any assistance from the airport. With over “half a tank of fuel”, the pilot decided to depart and conduct some additional pipeline surveillance en route to an alternate fuel stop. However, Jet A fuel was not available at the alternate fuel stop. Efforts to find assistance also were not successful. The nearest airport with Jet A fuel was approximately 40 miles away, and about 15 gallons of fuel remained onboard the helicopter. The pilot elected to proceed 15 to 20 miles and land next to a road in an effort to reach cellphone coverage or find a passing vehicle to request assistance. After clearing a windmill farm the pilot began an approach for landing near a road about 6 miles from the intended destination airport. About 100 ft above ground level, “the engine flamed out due to lack of fuel.” The pilot entered an autorotation and subsequently impacted an agricultural field. The aft cabin and lower portion of the aft fuselage sustained substantial damage. The landing skids and aft portion of the tail boom were separated. Neither the pilot nor the operator reported any mechanical failures or malfunctions associated with the helicopter that would have precluded normal operation.

Aircraft

Registration
N85RB
Reported as
Bell 206B
Category
Helicopter
Serial number
831
Built
1972
Airframe hours
22,057
Engine
Rolls-Royce 250-C20, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Aerial observation · Part 91
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · May 27, 2023
Departed
3K8 · Coldwater, KS
Destination
PTT · Pratt, KS
Flight plan
Company VFR
Airport
PTT · Pratt Regional
Equipment
Satellite tracking device, Handheld GPS, ADS-B

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.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
38
Injuries
Minor
Certificate
Commercial
Instrument ratings
Helicopter
Medical
Class 2, Without waivers/limitations
Seat
Right
Restraint
4-point
Flight hours
2,300 total · 800 in this make and model · 1,800 as pilot in command · 50 in the last 90 days · 35 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 13 knots
Visibility
10 statute miles
Lowest ceiling
6,500 ft broken
Temperature
77 °F, dew point 61 °F
Altimeter
29.95 inHg
Observed at
KPTT, 6 nm away
METAR
METAR KPTT 111915Z AUTO 03013KT 10SM SCT029 SCT036 BKN065 25/16 A2995

Docket · 2

The files NTSB released with the investigation on July 27, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.5 MB in all.

FAA reports on this event · 1

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

Other investigations on N85RB · 1

Matched to the same aircraft by N-number and date.