MKC89LA123

NTSB accident investigation · Air Tractor AT-400 · Poplar Bluff, MO · June 2, 1989

Accident · No injuriesLimited investigationFinal report
Date
June 2, 1989, 13:15 local (18:15 UTC)
Place
Poplar Bluff, MO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N3159WAir Tractor AT-400
Weather
Visual (VMC) · Day
Status
Completed · report May 22, 1990
Report
Approved by Office Director
FAA report
19890602049069A
Case key
34800

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot in command misjudged the clearance of the aircraft's vertical stabilizer from the power lines.

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
Clearance - misjudgedPilot in commandCause
Object - wire,transmissionFactor
Forced landingDescent - emergency
Flight control,rudder - jammed
In flight collision with terrain/waterLanding

Analysis

While conducting an aerial application operation, the commercial plt flew under power lines. The neutral stabilizer failed to clear the lines which caused substantial damage to the empennage. The plt said the rudder was inoperable so he attempted to make a straight ahead emergency landing in a farm field. The acft collided with the terrain causing additional damage to the landing gear and wings.

Aircraft

Registration
N3159W
Reported as
Air Tractor AT-400
Category
Airplane
Serial number
0474
Airframe hours
3,755
Engine
P&W PT6-15AG, 680 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Hall, John M.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · November 1, 1988 · 58 hours before
Departed
POF · Poplar Bluff, MO

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
30
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,750 total · 700 in this make and model · 4,662 as pilot in command · 100 in the last 90 days · 75 in the last 30 days · 10 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 6 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 66 °F
Altimeter
30.00 inHg
Observed at
CGI, 60 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.

Other investigations on N3159W · 1

Matched to the same aircraft by N-number and date.