FTW98LA252

NTSB accident investigation · Grumman-Schweizer G-164B · Coy, AR · June 1, 1998

Accident · No injuriesLimited investigationFinal report
Date
June 1, 1998, 16:00 local (21:00 UTC)
Place
Coy, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N943QCGrumman-Schweizer G-164B
Weather
Visual (VMC) · Day
Status
Completed · report October 30, 1998
Report
Approved by Office Director
FAA report
19980601011829A
Case key
20635

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

failure of the left main tire, which resulted in the pilot's inability to maintain directional control of the airplane during the landing roll.

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.

Airframe/component/system failure/malfunctionTakeoff - roll/run
Landing gear,tire - failureCause
Loss of control - on ground/waterLanding - roll
Directional control - not possible
Ground loop/swerve
Gear collapsedLanding - roll
Landing gear,main gear - overload

Analysis

The left main landing gear tire blew out as the airplane rotated for takeoff. The pilot continued the takeoff and was able to climb without further incident. He proceed to the field that he intended to spray. After dispensing the load of fertilizer, the pilot elected to return to a nearby unobstructed auxiliary airstrip to execute a precautionary landing. The pilot stated that he touched down on the right wheel, and during the landing roll, he tried to keep the weight of the airplane off the left wheel. The airplane started to pull to the left as more weight was placed on the flat left tire. Eventually, the tire dug into the ground resulting in the left main gear assembly collapsing. The reason for the failure of the left main tire could not be determined.

Factual narrative

On June 1, 1998, at 1600 central daylight time, a Grumman-Schweizer G-164B agricultural airplane, N943QC, was substantially damaged following a loss of control while landing near Coy, Arkansas. The non-instrument rated commercial pilot, sole occupant to the airplane, was not injured. The airplane was owned by Farmer's Flying Service of Coy, Inc., and was being operated under Title 14 CFR Part 137 at the time of the accident. Visual meteorological conditions prevailed for the local aerial application flight for which a flight plan was not filed. The flight originated from a local airstrip approximately 15 minutes prior to the accident.

According to the pilot, the left main landing gear tire blew out as the main wheels rotated off the ground during takeoff. The aerial application flight was scheduled to dispense a load of "Urea" fertilizer on a local rice field. After the tire blow out, the pilot continued the takeoff and was able to climb without further incident and proceed to the field he intended to spray.

After dispensing the load of fertilizer, the pilot elected to return to a nearby unobstructed auxiliary airstrip, located 3 miles south of his home base, known as the Coleman Brothers Farm airstrip, to execute a precautionary landing to the north. The pilot stated that he touched down on the right wheel, and during the landing roll, he tried to keep the weight of the airplane off the left wheel. The airplane started to pull to the left as more weight was placed on the flat left tire. Eventually the tire dug into the ground resulting in the left main gear assembly collapsing. The airplane came to rest in the upright position on the east side of the airstrip.

The pilot stated that he had accumulated over 11,000 flight hours, of which 10,347 were in the same make and model of airplane.

Examination of the 1983 turbine powered biplane by the operator revealed that both left wings and the fuselage sustained structural damage. The reason for the failure of the left main tire could not be determined.

Aircraft

Registration
N943QC
Reported as
Grumman-Schweizer G-164B
Category
Airplane
Serial number
711B
Airframe hours
6,447
Engine
Garrett TPE-331-1, 660 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Russell H. Erickson
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · May 16, 1998 · 102 hours before
Airport
NONE · Coleman Brothers Farm, runway 36, 2,500 × 60 ft, grass/turf

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
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
11,078 total · 10,347 in this make and model · 230 in the last 90 days · 120 in the last 30 days · 10 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
135° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
95 °F

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 N943QC · 1

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