GAA20CA030

NTSB accident investigation · Piper PA18 · Gerlach, NV · October 16, 2019

Accident · No injuriesData collectionFinal report
Date
October 16, 2019, 16:00 local (23:00 UTC)
Place
Gerlach, NV
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2894PPiper PA18
Defining event
Landing-flare/touchdown: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report May 21, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20191016020109A
Case key
100447

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 landing, which resulted in an aerodynamic stall.

Findings · 2

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 · PilotPiper PA-18A 150: 18 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18A 150: 2 casesAll aircraft: 990 casesProbable cause

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 approach to land on a dirt field, about 10 ft above ground level, the airplane yawed right, and the right wing aerodynamically stalled and impacted terrain. The airplane sustained substantial damage to the fuselage and both wings. 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 of the tailwheel and tundra tire-equipped airplane reported that, during approach to land on a dirt field, about 10 ft off the ground, the airplane yawed to the right, the right wing aerodynamically stalled and impacted terrain. The airplane sustained substantial damage to the fuselage and both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot reported that the wind was variable at 10 to 13 knots. He added that, after exiting the airplane, he observed that the wind was "swirling" and not constant. He assumed that he encountered a quartering tailwind gust. The pilot was landing the airplane to northwest.

Aircraft

Registration
N2894P
Reported as
Piper PA18 (150)
Category
Airplane
Serial number
18-4492
Built
1955
Airframe hours
2,188.08
Engine
Lycoming O-320-A2A, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 13, 2019
Departed
Calneva, CA
Destination
Calneva, CA
Equipment
ADS-B, Satellite tracking device

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
57
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
May 7, 2018
Seat
Front
Flight hours
627 total · 153 in this make and model · 575 as pilot in command · 71 in the last 90 days · 5 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 18 °F
Altimeter
29.94 inHg
Observed at
KSVE, 31 nm away

Docket · 2

The files NTSB released with the investigation on December 20, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.2 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.

Other investigations on N2894P · 1

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