GAA18CA018

NTSB accident investigation · Aeronca 7DC · Salinas, CA · October 22, 2017

Accident · No injuriesData collectionFinal report
Date
October 22, 2017, 13:30 local (20:30 UTC)
Place
Salinas, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N83512Aeronca 7DC
Defining event
Landing: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report January 11, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20171022023659A
Case key
96225

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 directional control during landing with a tailwind.

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: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAeronca 7DC: 5 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAeronca 7DC: 2 casesAll aircraft: 9,295 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on operationAeronca 7DC: 2 casesAll aircraft: 594 cases
Object/animal/substance: sign/markerEnvironmental issues › Physical environment · Contributed to outcomeAeronca 7DC: 1 caseAll aircraft: 214 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, as the tailwheel was touching down, the airplane swerved to the right and hit a taxiway sign. Subsequently, the left main landing gear collapsed, and the left wing struck the ground. The airplane sustained substantial damage to the fuselage and left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation system on the accident airport reported, about 30 minutes before the accident, that the wind was calm. The automated report further reported, about 30 minutes after the accident, that the wind was from 270° at 11 knots. The pilot landed on runway 08.

Factual narrative

The pilot reported that, during landing, as the tailwheel was touching down the airplane swerved to the right and hit a taxiway sign. Subsequently, the left main landing gear collapsed and the left wing struck the ground. The airplane sustained substantial damage to the fuselage and left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation system on the accident airport reported, about 30 minutes prior to the accident that the wind was calm. The automated report further reported, about 30 minutes after the accident, the wind was from 270° at 11 knots. The pilot landed on runway 08.

Aircraft

Registration
N83512
Reported as
Aeronca 7DC
Category
Airplane
Serial number
7AC-2183
Built
1946
Airframe hours
1,998
Engine
Continental C85-F, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 16, 2017
Departed
SNS · Salinas, CA
Destination
SNS · Salinas, CA
Airport
SNS · Salinas Muni, runway 08, 6,004 × 150 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
71
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
November 11, 2015
Seat
Front
Restraint
3-point
Flight hours
3,900 total · 200 in this make and model · 15 in the last 90 days · 4 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 11 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 54 °F
Altimeter
30.25 inHg
Observed at
KSNS

Docket · 2

The files NTSB released with the investigation on December 6, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 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.