ERA23LA102

NTSB accident investigation · Stray Goose Research Aircam · Calhoun, GA · January 5, 2023

Accident · No injuriesClass 4 · LimitedFinal report
Date
January 5, 2023, 13:19 local (18:19 UTC)
Place
Calhoun, GA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N522EAStray Goose Research Aircam
Defining event
Landing-landing roll: Loss of control on ground
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
20230105011639A
Case key
106545

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 inadvertent asymmetric throttle application, which resulted in a loss of directional control during the landing roll, runway excursion, and collision with ground equipment.

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.

Engine controls: power leverAircraft › Aircraft power plant · Unintentional use/operationStray Goose Research AIRCAM: 1 caseAll aircraft: 95 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedStray Goose Research AIRCAM: 1 caseAll aircraft: 3,958 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 was performing touch-and-go landings, and during the landing roll, he removed his hand from the twin-engine airplane’s throttles to turn off the electrically-powered fuel pumps. As the pilot moved his hand, his sweater sleeve caught on the right throttle handle, the right engine power increased, and the airplane veered off the runway to the left. During the runway excursion, the airplane collided with a runway marker sign and visual approach lighting equipment, which resulted in substantial damage to the fuselage and empennage. The pilot attempted to reduce the right throttle setting, but his sweater was jammed between the throttles, and he ultimately stopped the airplane by shutting down the airplane’s engines. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N522EA
Reported as
Stray Goose Research Aircam
Category
Airplane, amateur-built
Serial number
AC-251
Built
2020
Airframe hours
237.2
Engines
Rotax 912-ULS2, 100 horsepower, reciprocatingRotax 912-ULS2, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Stray Goose Research LLC
Registered owner
Stray Goose Research LLC
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · October 20, 2022
Airport
CZL · Tom B David Fld, runway 35, 6,000 × 100 ft, asphalt
Equipment
Electronic primary flight display, ADS-B, Electronic multifunction display

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
82
Injuries
None
Certificates
Airline transport, Flight engineer, Commercial
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
May 11, 2021
Seat
Front
Restraint
4-point
Flight hours
36,000 total · 308 in this make and model · 30,000 as pilot in command · 24.5 in the last 90 days · 17.3 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 6 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
None
Temperature
57 °F, dew point 32 °F
Altimeter
30.10 inHg
Observed at
RMG, 13 nm away
METAR
KRMG 051753Z AUTO 23006G15KT 10SM CLR 14/00 A3010 RMK AO2 SLP189 T01440000 10144 20028 58010

Docket · 2

The files NTSB released with the investigation on June 15, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.6 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.