WPR19LA006

NTSB accident investigation · Vans RV6 · Cape Girardeau, MO · October 9, 2018

Accident · FatalClass 2 · LimitedFinal report
Date
October 9, 2018, 10:50 local (15:50 UTC)
Place
Cape Girardeau, MO
Injuries
1 fatal, 1 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N451JPVans RV6
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 2
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration, Federal Aviation Administration
FAA report
20181009019649A
Case key
98450

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 improper landing flare in gusting crosswind conditions, his failure to conduct a go-around, and his failure to maintain directional control, which resulted in a runway departure and 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.

Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Ability to respond/compensateLowell C Peterson RV-6A: 1 caseAll aircraft: 1,008 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedLowell C Peterson RV-6A: 1 caseAll aircraft: 3,958 casesProbable cause
Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Not attained/maintainedLowell C Peterson RV-6A: 1 caseAll aircraft: 1,285 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 and passenger were landing in gusting crosswind conditions following a local flight. The passenger stated that the airplane touched down on the right side of the runway, bounced several times, departed the right side of the runway, and subsequently nosed over; a witness on the ground also watched the airplane bounce, depart the runway surface, and nose over in the grass. Weather observations indicated a left crosswind component between 9 and 15 knots about the time of the accident. Postaccident examination of the airframe and engine revealed no anomalies that would have precluded normal operation, and the accident is consistent with the pilot's failure to attain a proper landing flare in gusting crosswind conditions, which resulted in the bounced landing, during which he failed to conduct a go-around. Subsequently, he did not maintain directional control, which resulted in the runway departure and nose-over.

Factual narrative

The FAA Airplane Flying Handbook, Chapter 8, Approaches and Landings, states: When the airplane contacts the ground with a sharp impact as the result of an improper attitude or an excessive rate of sink, it tends to bounce back in the air... Extreme caution and alertness must be exercised any time a bounce occurs, but particularly when there is a crosswind… When one main wheel of the airplane strikes the runway, the other wheel touches down immediately afterwards, and the wings become level. Then with no crosswind correction as the airplane bounces, the wind causes the airplane to roll with the wind, thus exposing even more surface to the crosswind and drifting the airplane more rapidly.…When a bounce is severe, the safest procedure is to execute a go-around immediately. Guidance provided by the kit manufacturer regarding flight test procedures stated that "If you should accidently hit hard enough to cause a sharp bounce back into the air, apply power and make a go-around for another landing attempt." It further stated that "It is probably better to start over rather than to salvage a bad landing out of an abnormal condition (bouncing back into the air at an unusual attitude or speed)." According to the kit manufacturer, due to the differences in each airplane built, the Pilot's Operating Handbook (POH) is the responsibility of the aircraft's builder/owner, and data such as reference speeds and crosswind limitations should be compiled from flight tests of each specific airplane. On October 9, 2018, about 1050 central daylight time, an experimental amateur-built Vans Aircraft Inc. RV-6A, N451JP, sustained substantial damage when it was involved in an accident in Cape Girardeau, Missouri. The pilot was fatally injured, and the pilot-rated passenger sustained serious injuries. The airplane was operated as a Title 14 Code of Federal Regulations (CFR) Part 91 personal flight. According to a witness located at the airport, the airplane landed "a little long," then bounced "hard" upon touchdown, before bouncing two more times. Immediately following the third bounce, the nose landing gear folded back, and the airplane nosed over. The passenger stated that the pilot mentioned that he was going to land "a little faster" and not use flaps due to the wind. The passenger further stated that the pilot had trouble straightening the airplane when it touched down the first time. The airplane touched down on the right side of the runway, bounced "pretty high," then landed in a right crab before it "shot off the right side of the runway" and subsequently nosed over. The airplane came to rest about 1,750 ft from the approach end of runway 20 and about 25 ft off to the right side of the runway. The witness statements were consistent with onboard GPS data and an airport surveillance video. An autopsy of the pilot was not performed due to his organ donor status. Toxicology testing performed at the FAA's Forensic Sciences Laboratory was negative for ethanol andtested-for drugs. The recorded weather conditions at Cape Girardeau Regional Airport (CGI), Cape Girardeau, Missouri, at 1050 included wind from 150° at 12 knots with gusts to 20 knots. Based on this observation, the crosswind component for landing on runway 20 was between about 9 knots and 15 knots, depending on the gust factor. The pilot held an experimental aircraft builder repairman certificate. The pilot had completed the requirements of BasicMed. All flight control surfaces remained attached to the airplane. Flight control continuity was established from the cockpit to all flight control surfaces. The elevator trim was observed in the neutral position and operated normally. The aileron trim was in the neutral position. The aileron trim operated normally with no anomalies noted. Examination of the brakes and tires revealed no anomalies. The engine and all associated engine components and accessories were present. The crankshaft was manually rotated at the propeller and rotational continuity was established throughout the engine, accessory section, and valve train. During crankshaft rotation, thumb compression and suction were attained on all cylinders. A borescope inspection of the cylinders revealed normal operating signatures. The engine was run at various power settings with no anomalies noted.

Aircraft

Registration
N451JP
Reported as
Vans RV6 (A)
Category
Airplane, amateur-built
Serial number
23435
Built
2011
Airframe hours
183.4
Engine
Lycoming O-320-H2AD, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · November 10, 2017
Departed
CGI · Cape Girardeau, MO
Destination
CGI · Cape Girardeau, MO
Airport
CGI · Cape Girardeau Rgnl, runway 20, 3,997 × 100 ft, concrete
Equipment
Electronic multifunction display, Handheld GPS

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
74
Injuries
Fatal
Certificate
Private
Airplane ratings
Single-engine land
Medical
BasicMed, Unknown
Last flight review
June 23, 2018
Seat
Left
Restraint
4-point
Toxicology
Performed
Flight hours
230 total
Role
Pilot-rated passenger
Age
84
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
BasicMed
Seat
Right
Restraint
4-point
Flight hours
988 total

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 12 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 66 °F
Altimeter
29.97 inHg
Observed at
KCGI

Docket · 14

The files NTSB released with the investigation on December 2, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 10.2 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.