SEA02LA166

NTSB accident investigation · Aero Commander S2R Thrush · Connell, WA · August 21, 2002

Accident · No injuriesLimited investigationFinal report
Date
August 21, 2002, 16:00 local (23:00 UTC)
Place
Connell, WA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8870QAero Commander S2R Thrush
Weather
Visual (VMC) · Day
Status
Completed · report April 8, 2003
Report
Approved by Office Director
Parties
Spokane FSDO
FAA report
20020821023519A
Case key
55580

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 NTSB’s determination of the probable cause, and any contributing factors.

The pilot's failure to adequately compensate for wind conditions and his failure to maintain directional control. Factors include rough uneven terrain.

Analysis

The commercial pilot was landing the tail wheel equipped airplane on runway 25. The pilot stated that during the landing rollout, the airplane encountered a gust of wind and veered to the left. The pilot attempted to regain runway centerline, however, the airplane continued to the left and encountered rough terrain. After encountering the rough terrain, the airplane's right main gear collapsed resulting in substantial damage to the right wing spar and aileron. The pilot reported that the winds, at the time of the accident, were from 190 degrees at 3-5 knots, gusting to 10-15 knots.

Factual narrative

On August 21, 2002, approximately 1600 Pacific daylight time, an Aero Commander S2R "Thrush", N8870Q, sustained substantial damage while on landing roll at Connell City Airport, Connell, Washington. The airplane is registered to B & R Crop Care of Connell, Washington, and was being operated as an aerial application flight under the provisions of Title 14, CFR Part 137, when the accident occurred. The commercial pilot was not injured. Visual meteorological conditions prevailed and no flight plan was filed for the local agricultural flight.

During a telephone conversation with the National Transportation Safety Board (NTSB) on August 28, the pilot reported that he was landing on runway 25. The pilot stated that during the landing roll, the airplane encountered a gust of wind and veered to the left. The pilot attempted to regain runway centerline, however, the airplane continued to the left and encountered rough terrain. After encountering the rough terrain, the airplane's right main gear collapsed resulting in substantial damage to the right wing spar and aileron.

The pilot reported that the winds, at the time of the accident, were from 190 degrees at 3-5 knots, gusting to 10-15 knots.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterLanding - roll
Compensation for wind conditions - inadequatePilot in commandCause
Weather condition - crosswind
Directional control - not maintainedPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - rough/unevenFactor
Gear collapsedLanding - roll

Aircraft

Registration
N8870Q
Reported as
Aero Commander S2R Thrush
Category
Airplane
Serial number
1420R
Airframe hours
5,700
Engine
Walter M-60 E1, 751 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
B & R Crop Care
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 12, 2002 · 5,620 hours before
Departed
WA14 · Connell, WA
Destination
WA14 · Connell, WA
Airport
WA14 · Connell City, runway 27, 3,000 × 100 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
58
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
April 26, 2001
Seat
Center
Flight hours
16,118 total · 252 in this make and model · 16,118 as pilot in command · 170 in the last 90 days · 140 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 52 °F
Altimeter
29.96 inHg
Observed at
KPSC, 26 nm away

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 N8870Q · 2

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