CEN20LA270

NTSB accident investigation · Cessna 188 · Pembina, ND · July 9, 2020

Accident · Serious injuriesClass 3 · LimitedFinal report
Date
July 9, 2020, 08:05 local (13:05 UTC)
Place
Pembina, ND
Injuries
1 serious
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
C-GWWECessna 188
Defining event
Maneuvering-low-alt flying: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Central Region
Parties
Flight Standard District Office, Textron Aviation
Case key
101573

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 control during an aerial spray turnaround in high crosswind conditions.

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 · PilotAll aircraft: 9,295 casesProbable cause
Wind: high windEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeAll aircraft: 112 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 3,958 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.

Loss of control in flightManeuvering-low-alt flyingAll aircraft: 5,002 casesDefining event

Analysis

The pilot was spraying a field with north-south passes. During a left turn from the south toward the north, the airplane impacted the ground with the left wing down on a southeasterly heading. Due to the pilot’s injuries, he did not recall the accident sequence. Examination of the airplane revealed no anomalies that would have precluded normal operation. Strong westerly wind at the time of the accident likely created a ground track challenge during the turnaround. Based on the airplane’s impact with the left wing down and significant forward groundspeed, the pilot likely either exceeded the critical angle of attack or developed a high sink rate during the turnaround and was not able to regain control prior to ground impact.

Factual narrative

On July 9, 2020, about 0805 central daylight time, a Cessna 188 airplane, Canadian registry C-GWWE, was destroyed when it was involved in an accident near Pembina, North Dakota. The commercial pilot was seriously injured. The airplane was operated as a Canadian Aviation Regulations (CAR) Subpart 702 aerial work flight. About 0745, a U.S. Customs and Border Protection officer observed the airplane spraying fungicide on a canola field in Canada with north-south passes. Following each southbound spray pass, the airplane would fly into the U.S. and make a left turn back toward the Canadian field. When the officer observed “a large ball of fire rising from a field,” he responded to the accident site and rendered assistance to the pilot. The officer did not observe the accident sequence. The airplane impacted a canola field in the U.S. and came to rest inverted. The left-wing tip was near the initial ground impact point. The debris path was about 150 ft long and oriented toward the southeast. Figure 1. Airplane at Accident Site. Examination of the airplane revealed no anomalies that would have precluded normal operation. The onboard electronic devices did not contain any recorded flight data. Strong westerly wind was present during the time of the accident and continued to increase following the accident. About 10 minutes after the accident time, reported wind in the area was 17 knots, with gusts to 22 knots. The accident occurred on the third spray load of the day for the pilot. Due to his injuries, the pilot did not recall any information regarding the accident sequence.

Aircraft

Registration
C-GWWE
Reported as
Cessna 188
Category
Airplane
Serial number
18802232T
Built
1975
Airframe hours
2,344
Engine
Continental IO-520, 300 hp, reciprocating
Damage
Destroyed
Flight
Aerial application · Non-U.S., commercial
Operator
Southeast Air Services
Registered owner
Southeast Air Services
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · June 21, 2020
Departed
CJL6 · Altona, OF
Destination
CJL6 · Altona, OF
Equipment
Stall warning system, Handheld GPS

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
22
Injuries
Serious
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 1, Without waivers/limitations
Last flight review
June 24, 2020
Seat
Single
Restraint
Lap only
Flight hours
329 total · 169 in this make and model · 193 as pilot in command · 48 in the last 90 days · 48 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 10 knots, gusting 19
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 54 °F
Altimeter
29.70 inHg
Turbulence
Unknown
Observed at
K2C8, 14 nm away

Docket · 10

The files NTSB released with the investigation on February 23, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 14.6 MB in all.