GAA17CA203

NTSB accident investigation · Aeronca 11AC · Warroad, MN · March 25, 2017

Accident · No injuriesData collectionFinal report
Date
March 25, 2017, 10:00 local (15:00 UTC)
Place
Warroad, MN
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9595EAeronca 11AC
Defining event
Landing: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report June 7, 2017
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
Case key
94913

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 improper landing flare and his subsequent failure to maintain directional control during the landing in tailwind conditions.

Findings · 5

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: landing flareAircraft › Aircraft oper/perf/capability · Not attained/maintainedAeronca 11AC: 2 casesAll aircraft: 1,285 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAeronca 11AC: 13 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAeronca 11AC: 14 casesAll aircraft: 9,295 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on operationAeronca 11AC: 3 casesAll aircraft: 594 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 tailwheel-equipped airplane reported that, during the landing, he flared high and bounced. The airplane touched down again, and a "gust of wind blew [him] off the runway." He attempted to recover by adding full power to go around; however, the airplane exited the runway to the left and came to rest inverted. The airplane sustained substantial damage to both wings and the empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. A review of current weather conditions at the accident airport revealed that, about the time of the accident, the wind was from 150° at 9 knots. The airplane landed on runway 31.

Factual narrative

The pilot of the tailwheel-equipped airplane reported that during the landing he flared high and bounced. The airplane touched down again and a "gust of wind blew [him] off the runway". He attempted to recover by adding full power to go around, however the airplane exited the runway to the left and came to rest inverted. The airplane sustained substantial damage to both wings and the empennage. The pilot reported that there were no pre-accident mechanical failures or malfunctions with the airplane that would have precluded normal operation. A review of current weather at the accident airport, about the time of the accident, reported the wind 150° at 9 knots. The airplane landed on runway 31.

Aircraft

Registration
N9595E
Reported as
Aeronca 11AC
Category
Airplane
Serial number
11AC-1235
Built
1946
Airframe hours
1,559
Engine
Continental A-65-B, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 12, 2016
Departed
RRT · Warroad, MN
Destination
RRT · Warroad, MN
Airport
RRT · Warroad Intl Memorial, runway 31, 5,400 × 100 ft, asphalt
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
63
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Sport pilot
Last flight review
July 15, 2016
Seat
Left
Restraint
Lap only
Flight hours
550 total · 95 in this make and model · 550 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 9 knots
Visibility
10 statute miles
Lowest ceiling
2,600 ft overcast
Temperature
36 °F, dew point 30 °F
Altimeter
30.20 inHg
Observed at
KRAD

Docket · 2

The files NTSB released with the investigation on May 3, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.3 MB in all.