GAA17CA489

NTSB accident investigation · Cessna 170 · Axtell, KS · August 11, 2017

Accident · No injuriesData collectionFinal report
Date
August 11, 2017, 13:02 local (18:02 UTC)
Place
Axtell, KS
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N4189VCessna 170
Defining event
Approach-VFR go-around: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report November 27, 2017
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20170811012449A
Case key
95825

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. Contributing to the accident was the pilot's decision to attempt to close a passenger door during a critical phase of flight.

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 · PilotCessna 170: 17 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Capability exceededCessna 170: 4 casesAll aircraft: 990 casesProbable cause
Doors: passenger/crew doorsAircraft › Aircraft structures · Related operating infoCessna 170: 1 caseAll aircraft: 86 casesProbable cause
Object/animal/substance: fence/fence postEnvironmental issues › Physical environment · Contributed to outcomeCessna 170: 3 casesAll aircraft: 313 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

***This report was modified on January 3, 2018. Please see the docket for this accident to view the original report.*** The pilot reported that, during a go-around after a low approach, the left cabin door opened. He added that he reached back to close the door and that the airplane then aerodynamically stalled. The pilot was unable to recover, and the airplane impacted the ground and struck multiple fences. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

***This report was modified on January 3, 2018. Please see the docket for this accident to view the original report.*** The pilot reported that, during a go around after a low approach, the left cabin door opened. He added that he reached back to close the door and the airplane aerodynamically stalled. The pilot was unable to recover and the airplane impacted the ground and struck multiple fences. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N4189V
Reported as
Cessna 170 (UNDESIGNAT)
Category
Airplane
Serial number
18522
Built
1948
Engine
Cont Motor C145 SERIES, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Departed
62K · Seneca, KS
Flight plan
Unknown
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
18
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 1, With waivers/limitations
Seat
Left

Weather

Conditions
Visual (VMC) · Day
Wind
20° at 7 knots
Visibility
10 statute miles
Temperature
77 °F, dew point 61 °F
Altimeter
30.12 inHg
Observed at
KFNB, 33 nm away

Docket · 5

The files NTSB released with the investigation on October 27, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.9 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 N4189V · 1

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