MIA08CA170

NTSB accident investigation · Air Tractor AT-502 · Satartia, MS · August 22, 2008

Accident · Minor injuriesData collectionFinal report
Date
August 22, 2008, 14:30 local (19:30 UTC)
Place
Satartia, MS
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N1520XAir Tractor AT-502
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed · report January 22, 2009
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20080822843039A
Case key
68767

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 inadequate visual lookout resulting in the in-flight collision with a 40-foot-tall antenna.

Findings · 2

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.

Object/animal/substance: tower/antenna (incl guy wires)Environmental issues › Physical environment · Response/compensationAir Tractor AT-502: 3 casesAll aircraft: 55 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.

Analysis

The pilot noticed that during a low pass over a field, the aircraft was approaching the known location of a 40 foot-tall antenna. He initiated a right climbing turn to avoid the antenna, but the left wing collided with it. The airplane abruptly rolled left to the inverted position, and while attempting to correct, the airplane impacted the ground. Based on the antenna height and location from the nearest airport, the Federal Aviation Administration was not required to be notified of its construction.

Factual narrative

The pilot stated that he had sprayed the field previously one time in May or early June 2008, and as a result, asked the field owner to mark an approximate 40 foot tall antenna for better visibility. The antenna was reportedly marked with orange colored tape which has since faded color. After takeoff from his private airstrip, the flight proceeded to the field the pilot intended on spraying and he circled it "...numerous times surveying the field. I looked for obstructions and studied my field map...", which was prepared by a local feed company. During a low pass checking for wind direction, he noticed the antenna off to his left. He immediately began a climbing right turn to avoid the antenna, but the left wing collided with it approximately 12 inches from the top. The airplane abruptly rolled left to an inverted position, and he continued the left roll and pushed forward on the stick. The airplane impacted the ground in a right wing low attitude, cart wheeled, came to rest nearly inverted, and was destroyed by a post crash fire. Title 14 Code of Federal Regulations (CFR) Part 77.13, pertaining to construction or alteration requiring notice, indicates that FAA notification is required whenever construction or alteration of more than 200 feet above ground level (agl) is to be located within 20,000 feet of an airport. The height of the antenna (40 feet agl) and location in reference to a nearby airport (approximately 68,000 feet), did not require FAA notification.

Aircraft

Registration
N1520X
Reported as
Air Tractor AT-502
Category
Airplane
Serial number
502-0157
Airframe hours
8,775
Engine
Pratt & Whitney PT6A-15AG, 680 horsepower, turbo prop
Damage
Substantial damage
Fire
On-Ground
Flight
Aerial application · Part 137
Operator
Carson Air Service, Inc.
Registered owner
Carson Air Service, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · November 1, 2007 · 430 hours before
Departed
Holly Bluff, MS
Destination
Yazoo City, MS

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
37
Injuries
Minor
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
January 1, 2007
Seat
Center
Flight hours
7,727 total · 4,854 in this make and model · 7,600 as pilot in command · 250 in the last 90 days · 100 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
10° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 73 °F
Altimeter
30.00 inHg
Observed at
JAN

FAA reports on this event · 1

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