GAA17CA459

NTSB accident investigation · Rockwell International S 2R · McRae, GA · July 27, 2017

Accident · No injuriesData collectionFinal report
Date
July 27, 2017, 11:00 local (15:00 UTC)
Place
McRae, GA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4886XRockwell International S 2R
Defining event
Landing: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report March 27, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20170727010089A
Case key
95728

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 failure to maintain directional control during the landing roll in tailwind conditions.

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
Terrain: sloped/uneven terrainEnvironmental issues › Physical environment · Effect on operationRockwell International S-2R: 1 caseAll aircraft: 270 cases
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on operationRockwell International S-2R: 2 casesAll aircraft: 594 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 pilot of the tailwheel-equipped airplane reported that, during an agricultural application flight and after he had completed two spray passes, he received a call from his ground crew, which informed him that he did not have enough chemicals to complete the application. Because of his heavy load, the position of his load pad, and the runway slope, the pilot chose to land with a tailwind. The pilot reported that he approached with a higher-than-normal airspeed and touched down about 1,500 ft from the approach end of runway 21. As the tailwheel came down, the airplane rolled over a depression in the runway, which unloaded the weight on the landing gear, and the airplane veered to the left. The pilot was unable to regain directional control before the airplane departed the runway and went over an embankment. The airplane sustained substantial damage to the right wing. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The automated weather observation station located about 14 nautical miles northwest of the accident site reported that, about 5 minutes before the accident, the wind was from 50° at 6 knots.

Factual narrative

The pilot of the tailwheel-equipped airplane reported that, during an aerial application flight, after he had completed two spray passes, he received a call from his ground crew, which informed him that he did not have enough chemicals to complete the aerial application. Because of his heavy load, the position of his load pad, and the slope in the runway, the pilot chose to land with a tail wind. The pilot reported that he approached with a higher than normal airspeed and touched down about 1,500 ft from the approach end of runway 21. As the tailwheel came down, the airplane rolled over a depression in the runway, which unloaded the weight on the landing gear, and the airplane veered to the left. The pilot was unable to regain directional control before the airplane departed the runway and over an embankment. The airplane sustained substantial damage to the right wing. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The automated weather observation station located about 14 nautical miles northwest of the accident site reported that, about 5 minutes before the accident, the wind was from 50° at 6 knots.

Aircraft

Registration
N4886X
Reported as
Rockwell International S 2R (UNDESIGNAT)
Category
Airplane
Serial number
2087R
Built
1974
Airframe hours
8,875.31
Engine
Walter M601E-11, 750 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · February 17, 2017
Departed
48A · Cochran, GA
Destination
MQW · McRae, GA
Flight plan
VFR
Airport
MQW · Telfair-Wheeler, runway 21, 5,000 × 75 ft, asphalt
Equipment
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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
48
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
July 1, 2016
Seat
Single
Flight hours
11,942 total · 636 in this make and model · 11,800 as pilot in command · 75 in the last 90 days · 35 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
50° at 6 knots
Visibility
10 statute miles
Temperature
84 °F, dew point 66 °F
Altimeter
30.07 inHg
Observed at
KEZM, 14 nm away

Docket · 2

The files NTSB released with the investigation on March 1, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.3 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 N4886X · 1

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