MIA98LA202

NTSB accident investigation · Air Tractor 502 · Clewiston, FL · July 17, 1998

Accident · No injuriesLimited investigationFinal report
Date
July 17, 1998, 17:00 local (21:00 UTC)
Place
Clewiston, FL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N9184RAir Tractor 502
Weather
Visual (VMC) · Day
Status
Completed · report September 28, 1999
Report
Approved by Office Director
FAA report
19980717025019A
Case key
43201

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 attain adequate airspeed. A tailwind was a contributing factor.

Analysis

The pilot initiated a takeoff to the east from the last half of a one mile dirt road and after becoming airborne, the airplane cleared 10-foot high obstruction near the end of the road and then began descending. The airplane impacted the ground in a sugar cane field and came to rest upright. The wind at the time was from the west-southwest and the pilot further stated that there was no mechanical failure or malfunction.

Factual narrative

On July 17, 1998, about 1700 eastern daylight time, an Air Tractor 502, N9184R, registered to Air Crop Care, Inc., collided with terrain during takeoff from a dirt road near Clewiston, Florida. Visual meteorological conditions prevailed at the time and no flight plan was filed for the 14 CFR Part 137 aerial application flight. The airplane was substantially damaged and the commercial-rated pilot, the sole occupant, was not injured. The flight was originating at the time of the accident.

The pilot stated that the fuel tanks were full and the hopper was loaded with 3,600 pounds of dry fertilizer; nearly 7/8 full. He initiated a takeoff to the east using the second half of a mile-long dirt road. The airplane became airborne and cleared a 10-foot-tall exhaust of a pump located at the end and slightly to the right of the runway centerline. The flight continued but began descending, during which, the left wing of the airplane collided with sugarcane about 50 feet past the departure end of the runway. The airplane yawed to the left coming to rest upright on a heading 180 degrees from the takeoff heading. The pilot further stated that there was no mechanical failure or malfunction and at the time of takeoff, the wind was from the west-southwest at 2-3 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 - in flightTakeoff - initial climb
Weather condition - tailwindFactor
Airspeed - not attainedPilot in commandCause
Stall/mush
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - crop

Aircraft

Registration
N9184R
Reported as
Air Tractor 502
Category
Airplane
Serial number
502-0214
Airframe hours
2,780
Engine
P&W PT6A-34AG, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Air Crop Care, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 27, 1998 · 250 hours before
Airport
runway 9, dirt

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
38
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
6,000 total · 400 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
100° at 5 knots
Visibility
10 statute miles
Lowest ceiling
20,000 ft broken
Temperature
88 °F, dew point 75 °F
Altimeter
30.00 inHg
Observed at
PBI, 46 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.