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NTSB accident investigation · Walter C Smythe Tango XR · Mansfield, OH · August 6, 2018

Accident · Minor injuriesData collectionFinal report
Date
August 6, 2018, 11:00 local (15:00 UTC)
Place
Mansfield, OH
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N454WSWalter C Smythe Tango XR
Defining event
Approach-VFR go-around: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report March 18, 2019
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20180806014169A
Case key
98002

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 exceedance of the airplane’s critical angle of attack during a go-around, which resulted in an aerodynamic stall.

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: angle of attackAircraft › Aircraft oper/perf/capability · Capability exceededWalter C Smythe TANGO XR: 1 caseAll aircraft: 990 casesProbable cause
Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Not attained/maintainedWalter C Smythe TANGO XR: 1 caseAll aircraft: 1,285 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 reported that, during landing, the airplane bounced multiple times, so he added power to go around, but the left wing dropped, and the airplane "veered" left and dropped to the ground. The airplane touched down in the grass to the left of the runway, the nose landing gear collapsed, and the airplane nosed over. The airplane sustained substantial damage to the fuselage and empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The pilot reported that, during landing, the airplane bounced multiple times, he added power to go around, the left wing dropped, and the airplane "veered" left and dropped to the ground. The airplane touched down in the grass to the left of the runway, the nose landing gear collapsed, and the airplane nosed over. The airplane sustained substantial damage to the fuselage and empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N454WS
Reported as
Walter C Smythe Tango XR
Category
Airplane, amateur-built
Serial number
029
Built
2015
Airframe hours
77.7
Engine
Titan IOX370, 205 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · June 1, 2018
Departed
BXM · Brunswick, ME
Destination
GQQ · Mansfield, OH
Airport
GQQ · Galion Muni, runway 23, 3,504 × 75 ft, asphalt
Equipment
Angle of attack indicator, Auto-pilot, Electronic multifunction display, Electronic primary flight display, 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
60
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
BasicMed
Last flight review
July 29, 2017
Seat
Left
Restraint
4-point
Flight hours
217.3 total · 5.1 in this make and model · 183.1 as pilot in command · 5.1 in the last 90 days · 5.1 in the last 30 days · 5.1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 70 °F
Altimeter
30.14 inHg
Observed at
KMFD, 10 nm away

Docket · 2

The files NTSB released with the investigation on October 31, 2018, 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.