CEN20LA143

NTSB accident investigation · Air Tractor AT 502 · Pecan Gap, TX · April 8, 2020

Accident · FatalClass 3 · LimitedFinal report
Date
April 7, 2020, 19:45 local (Apr 8, 2020, 00:45 UTC)
Place
Pecan Gap, TX
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N9185DAir Tractor AT 502
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Central Region
Parties
FAA FSDO
FAA report
20200407001749A
Case key
101154

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 did not maintain adequate clearance from tree, which resulted in a collision with a tree and subsequent impact with terrain.

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: tree(s)Environmental issues › Physical environment · Not specifiedAir Tractor AT-502: 2 casesAll aircraft: 933 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · PilotAir Tractor AT-502: 4 casesAll aircraft: 1,386 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 was conducting an aerial application flight. There were no witnesses to the accident, but the wreckage path was consistent with an in-flight collision with a tree near the edge of the field and subsequent impact with terrain. Examination of the wreckage revealed no mechanical anomalies that would have precluded normal operation. An autopsy was not performed; however, a review of the pilot’s medical history and postaccident medical treatment did not reveal any evidence that a preexisting medical condition contributed to the accident. The evidence is consistent with the pilot not maintaining adequate clearance from the tree, and the airplane’s collision with a tree and impact with terrain.

Factual narrative

On April 7, 2020, about 1945 central daylight time, an Air Tractor AT-502 airplane, N9185D, was destroyed when it was involved in an accident near Pecan Gap, Texas. The pilot received fatal injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 137 agricultural flight. The pilot was conducting aerial applications when the accident occurred. There were no witnesses to the accident. The Federal Aviation Administration (FAA) inspector who responded to the site noted that the airplane collided with the top of a tree at the edge of the field before it impacted the field. Several airplane pieces, including the engine, were found along the debris path to the main wreckage. A post-crash fire consumed a majority of the fuselage. There were no witnesses to the accident. The engine impact-separated into two pieces during the accident sequence; rotational scoring was observed on the turbine blades. Three propeller blades remained in the propeller hub, which also remained attached to the front section of the engine. Two propeller blade tips were sheared off; each blade exhibited lengthwise and chordwise twisting. After the wreckage was recovered, National Transportation Safety Board investigators examined the fuselage at the salvage facility. The post-crash fire and impact damage limited the extent of the examination; however, no pre-impact discrepancies were noted with the flight controls. The pilot initially survived the accident and received medical care. Neither an autopsy nor toxicological test was performed; however, a review of the pilot’s FAA medical history and medical treatment did not find any evidence of a preexisting medical condition that could have contributed to the accident. Photo 1: Airplane wreckage FAA photo

Aircraft

Registration
N9185D
Reported as
Air Tractor AT 502 (Undesignat)
Category
Airplane
Serial number
502-0200
Built
1992
Airframe hours
10,500
Engine
Pratt & Whitney PT6, turbo prop
Damage
Destroyed
Fire
On-Ground
Flight
Aerial application · Part 137
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · March 9, 2020
Departed
Pecan Gap, TX
Destination
Pecan Gap, TX
Equipment
Satellite tracking device

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
46
Injuries
Fatal
Certificates
Commercial, Private
Airplane ratings
Multi-engine land, Single-engine land, Multi-engine sea
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Seat
Single
Restraint
3-point
Flight hours
10,000 total

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 10 knots
Visibility
10 statute miles
Temperature
79 °F, dew point 70 °F
Altimeter
29.87 inHg
Observed at
KPRX

Docket · 7

The files NTSB released with the investigation on December 17, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 18.7 MB in all.

FAA reports on this event · 1

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