GAA18CA025

NTSB accident investigation · Champion 7GC · Gerlach, NV · October 21, 2017

Accident · No injuriesData collectionFinal report
Date
October 21, 2017, 12:00 local (19:00 UTC)
Place
Gerlach, NV
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7589EChampion 7GC
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report February 21, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA/ FSDO
FAA report
20171021024109A
Case key
96248

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 incorrect pitch control during the landing roll in shifting wind conditions, which resulted in a nose-over.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotChampion 7GC: 5 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: pitch controlAircraft › Aircraft oper/perf/capability · Incorrect use/operationChampion 7GC: 1 caseAll aircraft: 526 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Effect on operationChampion 7GC: 2 casesAll aircraft: 1,008 cases
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on operationChampion 7GC: 1 caseAll aircraft: 594 cases
Wind: sudden wind shiftEnvironmental issues › Conditions/weather/phenomena · Effect on operationChampion 7GC: 1 caseAll aircraft: 114 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

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge, the pilot of the tailwheel-equipped airplane reported that, during a wheel landing, the wind shifted from a crosswind to a quartering tailwind. He further reported that he applied full aft elevator but lost control of the pitch when the wind shifted, and the airplane nosed over about 5 to 10 knots groundspeed. The airplane sustained substantial damage to the left wing and vertical stabilizer. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot did not submit the NTSB Form 6120.1 Pilot/Operator Aircraft Accident/Incident Report.

Factual narrative

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge, the pilot of the tailwheel-equipped airplane reported that, during a wheel landing, the wind shifted from a crosswind to a quartering tailwind. He further reported that, he had full aft elevator applied, but lost control of the pitch when the wind shifted, and the airplane nosed over about 5 to 10 knots groundspeed. The airplane sustained substantial damage to the left wing and vertical stabilizer. The pilot did not report that there were any preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot did not submit the NTSB Form 6120.1 Pilot/Operator Aircraft Accident/Incident Report.

Aircraft

Registration
N7589E
Reported as
Champion 7GC (NO SERIES)
Category
Airplane
Serial number
7GC-23
Built
1958
Engine
Lycoming O-290, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Restricted (Special); Standard, Normal
Destination
88NV · Gerlach, NV
Flight plan
Unknown
Airport
88NV · Black Rock City
Equipment
Unknown

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
34
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Unknown

Weather

Conditions
Visual (VMC) · Day
Observed at
NONE

Docket · 2

The files NTSB released with the investigation on January 25, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 265 KB 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.

Other investigations on N7589E · 1

Matched to the same aircraft by N-number and date.