FTW00LA232

NTSB accident investigation · Air Tractor AT-502 · Helena, AR · August 14, 2000

Accident · No injuriesLimited investigationFinal report
Date
August 14, 2000, 07:30 local (12:30 UTC)
Place
Helena, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N73184Air Tractor AT-502
Weather
Visual (VMC) · Day
Status
Completed · report September 19, 2001
Report
Approved by Office Director
FAA report
20000814011659A
Case key
49996

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 obstacle clearance. A contributing factor was the sun glare.

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.

In flight collision with objectManeuvering - aerial application
Object - other
Light condition - sunglareFactor
Altitude/clearance - not maintainedPilot in commandCause

Analysis

This was the pilot's first flight of the morning, and he had completed spraying 35 acres of cotton. The pilot was flying from east to west, and had crossed over some trees and dropped down for a swath run when the right wing struck an irrigation sprinkler pivot. About 5-6 feet of the right wing and half of its aileron separated from the airplane. The pilot flew the airplane back to the staging strip and landed without further incident. The pilot stated that the sun was in his eyes, and it hampered him from seeing the irrigation pivot in time to avoid it.

Factual narrative

On August 14, 2000, at 0730 central daylight time, an Air Tractor AT-502 agricultural airplane, N73184, was substantially damaged when it struck an irrigation sprinkler apparatus while maneuvering near Helena Arkansas. The airplane was owned and operated by the Riddell Flying Service, Inc., of West Helena, Arkansas. The commercial pilot, sole occupant, was not injured. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 137 aerial application flight. The local boll weevil eradication flight originated from a staging strip south of Helena at 0700.

According to the pilot, this was his first flight of the day, and he had completed spraying 35 acres of cotton. He was flying from east to west, and had crossed over some trees and dropped down for a swath run when the right wing struck an irrigation sprinkler pivot. About 5-6 feet of the right wing and half of its aileron separated from the airplane. The pilot flew the airplane back to the staging strip and landed without further incident. The pilot stated that the sun was in his eyes, and it hampered him from seeing the irrigation pivot in time to avoid it.

Aircraft

Registration
N73184
Reported as
Air Tractor AT-502
Category
Airplane
Serial number
502-0010
Airframe hours
5,443
Engine
P&W PT6A-34, 750 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Riddell Flying Service, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · August 8, 2000 · 6 hours before
Departed
NONE

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
25
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
1,902 total · 1,098 in this make and model · 1,831 as pilot in command · 443 in the last 90 days · 185 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
181 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.