ERA21LA272

NTSB accident investigation · Bell 47G-2A-1 · Brasstown, NC · June 28, 2021

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
June 28, 2021, 13:20 local (17:20 UTC)
Place
Brasstown, NC · On a private farm
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N147AHBell 47G-2A-1
Defining event
Maneuvering-hover: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20210628011069A
Case key
103367

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 inflight loss of control while conducting a hovering maneuver.

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.

Performance/control parameters: lateral/bank controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedBell 47G-2A-1: 1 caseAll aircraft: 390 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotBell 47G-2A-1: 1 caseAll aircraft: 9,295 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 non-helicopter rated pilot reported that he had departed from a stationary trailer and hover taxied in ground effect. Upon reaching a taxiway that was parallel to the runway, he lost control of the helicopter and it impacted the ground multiple times before coming to rest on its side. A post-crash fire ensued and the helicopter was destroyed. The pilot stated that he believed he lost control of the helicopter and it had been “running fine” before the accident. Witnesses stated they observed the helicopter lift off from the transport trailer and that once the helicopter cleared the trailer, “it got real wobbly.” The main rotor blades struck the ground two or three times and while continuing forward, the right landing gear skid tube “hit the ground pretty hard”. They said, “the helicopter then bounced back into the air, spun to the right (clockwise) and landed on its left side.”

Aircraft

Registration
N147AH
Reported as
Bell 47G-2A-1 (NO SERIES)
Category
Helicopter
Serial number
3774
Built
1968
Airframe hours
4,286
Engine
Lycoming VO-435, 230 horsepower, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 26, 2021 · 10 hours before
Destination
Same as departure
Airport
PVT · Brasstown Field
Equipment
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
68
Injuries
Minor
Certificates
Flight instructor, Private, Commercial
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
January 26, 2021
Seat
Left
Restraint
4-point
Flight hours
1,810.4 total · 14.3 in this make and model · 1,930 as pilot in command · 35.1 in the last 90 days · 17.1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
20 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 68 °F
Altimeter
30.10 inHg
Observed at
PVT

Docket · 6

The files NTSB released with the investigation on April 28, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 59.4 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.