CEN16LA316

NTSB accident investigation · Schabacker Konrad J Acro Sport II · Winterset, IA · August 9, 2016

Accident · No injuriesLimited investigationFinal report
Date
August 9, 2016, 15:00 local (20:00 UTC)
Place
Winterset, IA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N6214CSchabacker Konrad J Acro Sport II
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report September 6, 2017
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA
FAA report
20160809014231A
Case key
93805

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot’s failure to maintain directional control of the airplane during the landing roll, which resulted in an on-ground collision with two parked airplanes.

Findings · 3

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/maintainedSchabacker Konrad J ACRO SPORT II: 1 caseAll aircraft: 3,958 casesProbable cause
Object/animal/substance: aircraftEnvironmental issues › Physical environment · Contributed to outcomeSchabacker Konrad J ACRO SPORT II: 1 caseAll aircraft: 116 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 commercial pilot was landing the airplane during a cross-country flight. The pilot reported that, during the landing roll, the airplane veered left. The pilot straightened the airplane and added power to go around, but the airplane again veered left, traveled off the side of the runway, and impacted two airplanes parked on the ramp. A postaccident examination of the airplane confirmed the pilot's report that there were no mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

On August 9, 2016, at 1600 central daylight time, an amateur-built Schabacker Konrad J Acro Sport II, N6214C, collided with two parked airplanes following a loss of control while landing at the Winterset Municipal Airport (3Y3), Winterset, Iowa. Neither the airline transport pilot (ATP) pilot nor the airplane owner/pilot rated-passenger were injured. The airplane was substantially damaged. The aircraft was registered to the pilot-rated passenger and it was being operated under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight, which was not operated on a flight plan. The flight originated from the Mason City Municipal Airport (MCW), Mason City, Iowa, at 1340.The airplane owner had recently purchased the airplane and had the pilot fly the airplane because the airplane owner did not hold an endorsement to fly tailwheel equipped airplanes. The pilot had a total flight time of 2.5 hours in the accident airplane. The pilot reported they overflew the airport, checked the windsock, and noted the wind was calm so they decided to land on runway 32. Shortly into the landing roll, the airplane began to veer to the left. The pilot straightened the airplane and added engine power to initiate an aborted landing. The airplane once again veered to the left and traveled down an embankment before it collided with two unoccupied parked airplanes on the ramp which were: N601FA, an Aerostar 601P, and N31EG, a Piper PA-23-250. The pilot reported the local wind was calm at the time of the landing. The winds recorded at Des Moines International Airport, Des Moines, Iowa, located about 22 miles northeast of 3Y3, were from 150 degrees at 6 knots. A postaccident examination of the landing gear and brakes was conducted by a Federal Aviation Administration inspector. The inspector reported that he did not find any anomalies that would have prevented the pilot's ability to maintain directional control of the airplane. In addition, the pilot reported that there was no mechanical failure/malfunction of the airplane.

Aircraft

Registration
N6214C
Reported as
Schabacker Konrad J Acro Sport II (NO SERIES)
Category
Airplane, amateur-built
Serial number
KJS 1993
Built
1994
Airframe hours
88.5
Engine
Lycoming O-360-A1D, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · May 18, 2016
Departed
MCW · Mason City, IL
Destination
3Y3 · Winterset, IA
Airport
3Y3 · Winterset Muni, runway 32, 3,002 × 50 ft, asphalt

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
55
Injuries
None
Certificates
Commercial, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
March 12, 2016
Seat
Rear
Restraint
5-point
Flight hours
7,854 total · 2.5 in this make and model · 4,806 as pilot in command · 107 in the last 90 days · 22 in the last 30 days · 2.5 in the last 24 hours
Role
Pilot-rated passenger
Age
55
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 1, With waivers/limitations
Last flight review
February 2, 2006
Seat
Front
Restraint
4-point
Flight hours
447 total · 0 in this make and model · 447 as pilot in command · 9.1 in the last 90 days · 5.5 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 72 °F
Altimeter
29.95 inHg
Observed at
DSM, 22 nm away

Docket · 2

The files NTSB released with the investigation on August 8, 2017, 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.