CEN12CA499

NTSB accident investigation · Flight Design Ctsw · Hutchinson, KS · July 30, 2012

Accident · No injuriesData collectionFinal report
Date
July 30, 2012, 12:15 local (17:15 UTC)
Place
Hutchinson, KS
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N460CTFlight Design Ctsw
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report October 9, 2012
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Flight Standards District Office
FAA report
20120730029019A
Case key
84529

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 loss of directional control during the landing roll.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotFlight Design CTSW: 20 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedFlight Design CTSW: 6 casesAll aircraft: 3,958 casesProbable cause
WindEnvironmental issues › Conditions/weather/phenomena · Response/compensationFlight Design CTSW: 1 caseAll aircraft: 110 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 the landing roll on a grass airstrip, the airplane encountered a wind shift and began to skid to the left. The pilot turned the airplane in order to level the wings and stop the skid; however, the airplane departed the runway at a 30-degree angle, encountered soft ground, and nosed over. The aft spar in the vertical stabilizer and the rudder hinge were broken. During a postaccident examination of the airplane, no preaccident mechanical malfunctions or failures were found that would have precluded normal operation.

Factual narrative

During the landing roll on a grass strip (runway 9) at a private airport, the airplane encountered wind and began to skid to the left. The pilot turned the airplane in order to level the wings and stop the skid; however, the airplane departed the runway at a 30 degree angle and nosed over in the soft ground. The aft spar in the vertical stabilizer and the rudder hinge were broken. According to the Federal Aviation Administration inspector who examined the airplane, no preaccident mechanical malfunctions or failures were found that would have precluded normal operation. Wind at the time of the accident were recorded as 100 degrees at 6 knots.

Aircraft

Registration
N460CT
Reported as
Flight Design Ctsw
Category
Airplane
Serial number
05-07-06
Airframe hours
218
Engine
Rotax 912S, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental light sport (Special)
Last inspection
Condition · July 16, 2011
Departed
KEQA · El Dorado, KS
Destination
PVT · Hutchinson, KS
Airport
PVT · Skyview Airport, runway 09, 2,500 × 70 ft, grass/turf

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
62
Injuries
None
Certificates
Private, Flight instructor
Airplane ratings
Single-engine land
Medical
Sport pilot
Last flight review
February 2, 2011
Seat
Left
Flight hours
1,418 total · 2 in this make and model · 1,418 as pilot in command · 15 in the last 90 days · 6 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
100° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 57 °F
Altimeter
29.95 inHg
Observed at
KHUT, 8 nm away

Docket · 2

The files NTSB released with the investigation on August 22, 2012, 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 N460CT · 2

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