ERA16CA314

NTSB accident investigation · Quicksilver Manufacturing Sport 2S · Cleveland, GA · September 9, 2016

Accident · Minor injuriesData collectionFinal report
Date
September 9, 2016, 19:00 local (23:00 UTC)
Place
Cleveland, GA
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N396DFQuicksilver Manufacturing Sport 2S
Defining event
Maneuvering-low-alt flying: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report July 5, 2017
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20160909015109A
Case key
94006

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.

Findings · 4

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: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedQuicksilver Manufacturing SPORT 2S: 1 caseAll aircraft: 1,681 casesProbable cause
Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Not attained/maintainedQuicksilver Manufacturing SPORT 2S: 1 caseAll aircraft: 990 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomeQuicksilver Manufacturing SPORT 2S: 1 caseAll aircraft: 933 cases

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 of the experimental, amateur-built airplane reported that he was demonstrating turns for the passenger while flying at a low altitude when he lost control of the airplane and "stalled." The airplane collided with trees and sustained substantial damage to the fuselage, wings, and empennage. The pilot reported that there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Factual narrative

The pilot of the experimental amateur-built airplane reported that he was demonstrating turns for the passenger while flying at a low altitude, when he lost control of the airplane and "stalled." The airplane collided with trees and sustained substantial damage to the fuselage, wings and the empennage. The pilot further reported that there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Aircraft

Registration
N396DF
Reported as
Quicksilver Manufacturing Sport 2S (NO SERIES)
Category
Airplane
Serial number
0104
Built
2004
Engine
Rotax 582, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Departed
Cleveland, GA
Destination
Cleveland, GA
Equipment
None

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
75
Injuries
Minor
Certificate
Sport Pilot
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
3,000 total · 50 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 66 °F
Altimeter
30.03 inHg
Observed at
TOC, 17 nm away

Docket · 4

The files NTSB released with the investigation on June 8, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.4 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.