WPR15LA186

NTSB accident investigation · Rockwell International S 2R · Washtucna, WA · June 16, 2015

Accident · Serious injuriesLimited investigationFinal report
Date
June 16, 2015, 10:30 local (17:30 UTC)
Place
Washtucna, WA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8420VRockwell International S 2R
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report September 8, 2015
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA FSDO
FAA report
20150616008979A
Case key
91381

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 while landing with a quartering tailwind.

Findings · 4

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/maintainedRockwell International S-2R: 6 casesAll aircraft: 3,958 casesProbable cause
TerrainEnvironmental issues › Physical environment · Not specifiedRockwell International S-2R: 2 casesAll aircraft: 267 cases
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on operationRockwell International S-2R: 2 casesAll aircraft: 594 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 the landing, the wind shifted to a quartering tailwind. The pilot was unable to maintain directional control, and the airplane veered left off the airstrip into an adjacent field. The airplane subsequently nosed over in the soft soil. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

On June 16, 2015, about 1030 Pacific daylight time, a Rockwell International S-2R, airplane, N8420V, sustained substantial damage during landing roll and subsequent noseover, in an adjacent field to the Kinch Farms Airport, Washtucna, Washington. The commercial pilot, sole occupant of the airplane, was seriously injured. The airplane was registered to B & R Aerial Crop Care, Inc., and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 137 as an agricultural application flight. Visual meteorological conditions prevailed and no flight plan was filed for the local flight. In a written statement, the pilot stated that during the 10th landing of the day on runway 3, the wind shifted resulting in a quartering tailwind. During the landing, he lost directional control and the airplane veered left into an adjacent field. The field had recently been plowed, and the soil was soft. Subsequently, the airplane nosed-over, resulting in substantial damage to the canopy roll cage structure. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation. The nearest weather reporting station reported wind near the time of the accident was from 130 degrees at 5 knots, gusting up to 10 knots. A postaccident examination of the airplane was conducted by the Federal Aviation Administration (FAA). The cockpit overhead structural tubing was bent, and the pilot's helmet had impact marks.

Aircraft

Registration
N8420V
Reported as
Rockwell International S 2R (UNDESIGNAT)
Category
Airplane
Serial number
2180R
Built
1976
Airframe hours
8,991
Engine
Pratt and Whitney R1340-S3H1G, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 20, 2015 · 29 hours before
Departed
WN72 · Washtucna, WA
Destination
WN72 · Washtucna, WA
Airport
WN72 · Kinch Farms, runway 03, 2,500 × 30 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Injuries
Serious
Certificates
Private, Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
December 31, 2014
Seat
Single
Restraint
4-point
Flight hours
1,819 total · 29 in this make and model · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 5 knots, gusting 10
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 39 °F
Altimeter
29.95 inHg
Observed at
KMWH, 46 nm away

Docket · 4

The files NTSB released with the investigation on August 4, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.5 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 N8420V · 1

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