DEN83LA136

NTSB accident investigation · Air Tractor AT-301 · Conrad, MT · June 9, 1983

Accident · No injuriesLimited investigationFinal report
Date
June 9, 1983, 09:50 local (15:50 UTC)
Place
Conrad, MT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N23069Air Tractor AT-301
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830609024829A
Case key
16090

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 engine power(total) - nonmechanicalManeuvering - aerial application
Fluid,fuel - exhaustionCause
Aircraft preflight - inadequatePilot in commandCause
Fuel supply - inadequatePilot in commandCause
Forced landingLanding - flare/touchdown
Main gear collapsedLanding - flare/touchdown
Landing gear,main gear attachment - overloadFactor

Analysis

The acft landed hard and collapsed the right main landing gear during a forced landing after fuel exhaustion. During a landing to reload the pilot had handled the herbicide on-loading and a ground crewman was loading the acft fuel. The supply of 80/87 octane fuel was exhausted but there was 100 octane available. The pilot was told about the fuel supply but he made no reply as he was busy loading herbicide. The refueling was not completed. About an hour after takeoff the engine ceased operation during a pull-up maneuver. After the accident the pilots father drained about 1 cup of fuel fromeach fuel tank. The pilot stated he should have topped off with fuel.

Aircraft

Registration
N23069
Reported as
Air Tractor AT-301
Category
Airplane
Serial number
301-0350
Airframe hours
435
Engine
P&W R-1340-AN1, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Minuteman Aerial Application
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · April 5, 1983 · 67 hours before
Departed
S01 · Conrad, MT

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
23
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2
Seat
Center
Flight hours
901 total · 343 in this make and model · 701 as pilot in command · 115 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 17 knots
Visibility
60 statute miles
Lowest ceiling
15,000 ft broken
Temperature
70 °F, dew point 39 °F
Altimeter
29.00 inHg
Observed at
CTB, 32 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 N23069 · 3

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