CEN14CA314

NTSB accident investigation · Air Tractor AT 402B · Newport, AR · June 21, 2014

Accident · Minor injuriesData collectionFinal report
Date
June 21, 2014, 12:45 local (17:45 UTC)
Place
Newport, AR
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N428JJAir Tractor AT 402B
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed · report August 14, 2014
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA
FAA report
20140621008429A
Case key
89523

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 misjudged his altitude which resulted in the airplane contacting a wire during the low altitude aerial application maneuver.

Findings · 4

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.

Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedAir Tractor AT-402B: 7 casesAll aircraft: 1,310 casesProbable cause
Object/animal/substance: wireEnvironmental issues › Physical environment · Response/compensationAir Tractor AT-402B: 4 casesAll aircraft: 588 cases

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 accident occurred during an aerial application flight. The pilot made the first spray pass over the field during which he flew under a wire at the end of the field. He stated he flew under the wire to avoid spraying chemical on a neighboring field. The pilot stated that he misjudged his altitude as he entered the field for the second pass, again flying under the wire, and the top of the vertical stabilizer contacted the wire. A piece of the vertical stabilizer separated from the airplane. The rudder was bent and partially detached from the vertical stabilizer. The airplane nosed down, impacted the terrain, and slid about 200 yards prior to coming to rest. The pilot stated there were no pre-impact mechanical issues with the airplane that would have precluded normal operation.

Factual narrative

The accident occurred during an aerial application flight. The pilot made the first spray pass over the field during which he flew under a wire at the end of the field. He stated he flew under the wire to avoid spraying chemical on a neighboring field. The pilot stated that he misjudged his altitude as he entered the field for the second pass, again flying under the wire, and the top of the vertical stabilizer contacted the wire. A piece of the vertical stabilizer separated from the airplane. The rudder was bent and partially detached from the vertical stabilizer. The airplane nosed down, impacted the terrain, and slid about 200 yards prior to coming to rest. The pilot stated there were no pre-impact mechanical issues with the airplane that would have precluded normal operation.

Aircraft

Registration
N428JJ
Reported as
Air Tractor AT 402B (B)
Category
Airplane
Serial number
402B-1307
Engine
Pratt & Whitney PT6, 680 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Charles Bell, Jr
Registered owner
Bell Flying Inc
Airworthiness certificate
Special, Restricted (Special)
Departed
Newport, AR
Destination
Newport, AR

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
Injuries
Minor
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Seat
Center
Restraint
4-point
Flight hours
9,000 total · 2,200 in this make and model · 9,000 as pilot in command · 350 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
90 °F, dew point 73 °F
Altimeter
29.98 inHg
Observed at
M19

Docket · 3

The files NTSB released with the investigation on July 23, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 836 KB 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.