FTW85LA330

NTSB accident investigation · Air Tractor AT-400 · Oak Ridge, LA · August 23, 1985

Accident · Minor injuriesLimited investigationFinal report
Date
August 23, 1985, 14:25 local (19:25 UTC)
Place
Oak Ridge, LA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N3656NAir Tractor AT-400
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850823047179A
Case key
21835

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

On this page

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.

Loss of control - in flightManeuvering - aerial application
Airspeed - not maintainedPilot in commandCause
Remedial action - not performedPilot in commandCause
Stall/mush
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The plt stated the acft 'sagged' (settled) during an aerial application maneuver and he leveled the wings to let it recover. However, he did not add power, flaps, or dump the load of almost 300 gallons of spray material he was carrying since he thought it would regain its lift in a moment. The condition deteriorated even further until impact with the ground occurred.

Aircraft

Registration
N3656N
Reported as
Air Tractor AT-400
Category
Airplane
Serial number
400-0287
Airframe hours
1,253
Engine
P&W PT6-15, 680 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
John R. Windsor
Last inspection
Annual · April 5, 1985 · 145 hours before

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
34
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
6,300 total · 3 in this make and model · 6,250 as pilot in command · 348 in the last 90 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
225° at 3 knots
Visibility
7 statute miles
Lowest ceiling
2,000 ft overcast
Temperature
90 °F

FAA reports on this event · 1

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