FTW85LA256

NTSB accident investigation · Air Tractor AT-301 · Brownsville, TX · June 14, 1985

Accident · Serious injuriesLimited investigationFinal report
Date
June 14, 1985, 10:30 local (15:30 UTC)
Place
Brownsville, TX
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N23692Air Tractor AT-301
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850614025419A
Case key
21775

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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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.

Airframe/component/system failure/malfunctionManeuvering - aerial application
Flt control syst,aileron control - disconnectedCause
Nose overLanding - flare/touchdown
Terrain condition - open fieldCause
Terrain condition - wetCause
Terrain condition - rough/unevenCause

Analysis

The ag acft was destroyed when it failed to pull out of an aerial application maneuver following the initial swath run over a field. The plt stated that after making his turn to return to the field, he attempted to level the acft and received no response from the elevator controls. The operator's post-acdt examination of the wreckage revealed that an 'AN-410' bolt was missing between the elevator torque tube and the elevator horns. The bolt and lock nut were not found in the wreckage.

Aircraft

Registration
N23692
Reported as
Air Tractor AT-301
Category
Airplane
Serial number
3010417
Airframe hours
815
Engine
P&W R-1340, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Ag Air, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 1, 1985 · 66 hours before
Departed
Los Fresnos, TX

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
4,228 total · 1,395 in this make and model · 4,228 as pilot in command · 66 in the last 90 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 72 °F
Altimeter
29.00 inHg
Observed at
BRO, 5 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.