ERA25LA046

NTSB accident investigation · Robinson Helicopter R22 Mariner · Parrottsville, TN · November 13, 2024

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
November 13, 2024, 11:30 local (16:30 UTC)
Place
Parrottsville, TN
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N178EPRobinson Helicopter R22 Mariner
Defining event
Landing: 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
20241113017249A
Case key
195496

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 control of the helicopter during a precautionary, off-airport landing to sloping terrain.

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.

Performance/control parameters: lateral/bank controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedRobinson Helicopter R22 MARINER: 1 caseAll aircraft: 390 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotRobinson Helicopter R22 MARINER: 6 casesAll 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 student pilot of the helicopter stated she was flying on her first solo cross-county flight. She flew to the first destination airport, which was about 30 minutes away, and made three uneventful approaches to land before departing the airspace and fly to another airport and practice some more approaches. She stated that about 15 minutes out from the next airport, she was having problems getting the correct frequency dialed into the radio and the helicopter felt “light” on the controls. She further described that the engine was running normally and all engine controls were functioning as expected. She then decided to make a precautionary landing in a field. During landing, she was focused on the helicopter’s instruments, did not look outside at the ground, and did not notice the field was slopped. One of the helicopter’s skids contacted the ground with a sideways motion, and the helicopter began to spin. The tail rotor subsequently contacted the ground and the helicopter rolled over on its left side resulting in substantial damage to the tail rotor and tail boom. The pilot stated that there were no preimpact mechanical malfunctions or failures of the helicopter that would have precluded normal operation.

Aircraft

Registration
N178EP
Reported as
Robinson Helicopter R22 Mariner
Category
Helicopter
Serial number
1918
Built
1991
Airframe hours
3,086
Engine
Lycoming O-320 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Sevier County Aviation Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · October 17, 2024
Departed
TRI · Bristol, TN
Destination
GCY · Greenville, TN
Flight plan
VFR
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
21
Injuries
Minor
Certificate
Student
Medical
Class 2, Without waivers/limitations
Seat
Right
Restraint
3-point
Flight hours
47 total · 47 in this make and model · 8 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
63 °F, dew point 45 °F
Altimeter
30.24 inHg
Observed at
DKX, 41 nm away
METAR
KDKX 131635Z AUTO VRB03KT 10SM CLR 17/07 A3024 RMK A01

Docket · 3

The files NTSB released with the investigation on June 13, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.8 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.