ERA22LA106

NTSB accident investigation · Charles C Menger JR Safari 400 · Gallatin, TN · January 12, 2022

Accident · No injuriesClass 4 · LimitedFinal report
Date
January 12, 2022, 12:40 local (18:40 UTC)
Place
Gallatin, TN
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N32CMCharles C Menger JR Safari 400
Defining event
Taxi: Abrupt maneuver
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
20220112000579A
Case key
104521

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

A reported stuck throttle for reasons that could not be determined during postaccident examinations and subsequent loss of control during hover.

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.

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

According to the pilot, he was performing the first flight after a condition inspection. He put the helicopter into a hover, noted the “throttle locked up and [the helicopter] got away” from him. The helicopter rolled onto its side and impacted the ground, which resulted in substantial damage to the fuselage and tailboom. Furthermore, he reported an overspeed and “hard vibration” prior to the rollover. A post-accident examination of the helicopter revealed no evidence of any pre-accident mechanical malfunctions or failures that would have precluded normal operation. In addition, the throttle governor was bench tested with no anomalies noted.

Aircraft

Registration
N32CM
Reported as
Charles C Menger JR Safari 400
Category
Helicopter
Serial number
CM001
Built
2018
Airframe hours
85
Engine
Lycoming YO-360-EXP63, reciprocating
Damage
Substantial damage
Flight
Flight test · Part 91
Airworthiness certificate
Special, Experimental (Special)
Airport
XNX · Music City Exec
Equipment
Unknown

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
67
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 8 knots, gusting 17
Visibility
10 statute miles
Lowest ceiling
None
Temperature
50 °F, dew point 23 °F
Altimeter
30.26 inHg
Observed at
XNX
METAR
KXNX 121735Z AUTO 21008G17KT 10SM CLR 10/M05 A3026 RMK A01

Docket · 5

The files NTSB released with the investigation on May 24, 2022, 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.