CEN21FA410

NTSB accident investigation · Robinson Helicopter R22 Beta · Mentone, TX · September 10, 2021

Accident · FatalClass 3 · FieldFinal report
Date
September 10, 2021, 09:30 local (14:30 UTC)
Place
Mentone, TX
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N292DDRobinson Helicopter R22 Beta
Defining event
Maneuvering-low-alt flying: Collision with terr/obj (non-CFIT)
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Central Region
Parties
FAA
FAA report
20210910014069A
Case key
103836

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

The pilot’s failure to maintain clearance from powerlines while maneuvering at low altitude.

Findings · 3

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.

Action: lack of actionPersonnel issues › Action/decision · PilotRobinson Helicopter R22 BETA: 16 casesAll aircraft: 792 casesProbable cause
Object/animal/substance: wireEnvironmental issues › Physical environment · Effect on operationRobinson Helicopter R22 BETA: 11 casesAll aircraft: 588 cases
Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedRobinson Helicopter R22 BETA: 25 casesAll aircraft: 1,310 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 flight was operated for the purpose of gathering cattle. The pilot departed from a temporary staging area and completed multiple passes in the area over an approximate 1 hour and 40-minute period. Ground support personnel observed the helicopter six times during that time; however, there were no witnesses to the accident. The helicopter wreckage was located near a set of powerlines in an area of low brush. One power transmission line was separated and draped over the intact lines. The forward fuselage exhibited localized discoloration consistent with electrical arcing damage. Repetitive linear marks consistent with powerline contact were present aft of the arcing damage. Postaccident airframe and engine examinations did not identify any anomalies consistent with a preimpact failure or malfunction. Based on the available information, it is likely that the pilot did not see the powerlines while maneuvering at low altitude, which resulted in an in-flight collision with the powerlines.

Factual narrative

On September 10, 2021, about 0930 central daylight time, a Robinson Helicopter R22 Beta, N292DD, was substantially damaged when it was involved in an accident near Mentone, Texas. The pilot was fatally injured. The helicopter was operated as a Title 14 Code of Federal Regulations Part 91 aerial observation flight. The flight was operated for the purpose of gathering cattle. GPS position data revealed that the flight departed a local staging area about 0749. The pilot proceeded about 3 miles east and, beginning about 0752, completed multiple passes in an approximate 3-mile by 3-mile area. Ground support personnel observed the helicopter six times between 0800 and 0840. About 0859, the pilot transitioned to an area about 2 miles north of the initial area and completed multiple passes. The final GPS data point was recorded at 0926:37 about 1/2-mile north of the accident site. Due to data buffering in the GPS device, the final portion of the flight was not recorded. The wreckage was discovered about 1557 and local authorities were contacted. There were no known witnesses to the accident. The helicopter wreckage was located about 50 ft from a set of power lines in an area of low brush. The powerline support poles extended to about 50 ft above ground level (agl); the transmission lines were about 45 ft agl. One power transmission line was separated and draped over the intact lines. The helicopter sustained damage to the fuselage, tail boom, and main rotor blades. The fuselage nose exhibited localized discoloration consistent with electrical arcing damage. Repetitive linear marks consistent with powerline contact were present aft of the arcing damage. The aft portion of the tail boom, including the tail rotor assembly, was separated and located near the main wreckage. Fragments of the tail boom in the area of the separation exhibited scuffing marks consistent with contact with a main rotor blade. Both main rotor and both tail rotor blades were damaged but remained secured to their respective hubs. Postaccident airframe and engine examinations did not identify any anomalies consistent with a preimpact failure or malfunction.

Aircraft

Registration
N292DD
Reported as
Robinson Helicopter R22 Beta
Category
Helicopter
Serial number
3396
Built
2002
Airframe hours
5,130
Engine
Lycoming O-360-J2A, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial observation · Part 91
Operator
Concho Aviation LLC
Registered owner
Concho Aviation LLC
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 25, 2021 · 80 hours before
Departed
PVT · Sterling City, TX
Equipment
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.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
40
Injuries
Fatal
Certificates
Flight instructor, Commercial
Instrument ratings
Helicopter
Medical
Class 2, Without waivers/limitations
Seat
Right
Restraint
3-point
Toxicology
Performed
Flight hours
225 total

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 52 °F
Altimeter
30.14 inHg
Observed at
KINK, 16 nm away
METAR
METAR KINK 101353Z AUTO 16009KT 10SM CLR 21/11 A3014

Docket · 10

The files NTSB released with the investigation on June 23, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 679 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.