# NTSB LAX86FUJ05: Air Tractor AT301, N4410S, Gilbert, AZ, August 12, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: August 12, 1986, 04:20 local (11:20 UTC)
- Place: Gilbert, AZ
- Coordinates: 33.359245, -111.750762 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.3592&lon=-111.7508&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 25, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 24952
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX86FUJ05
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24952/pdf
- Page: https://openairdocs.org/ntsb/LAX86FUJ05

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - nonmechanical, cruise - normal
  - fluid,fuel - exhaustion (cause)
  - fuel consumption calculations - inaccurate, pilot in command (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ditch

## Analysis

DURING THE 'LAST PULL-UP' FROM AN AERIAL APPLICATION, FLT THE PILOT NOTICED A LOW FUEL PRESSURE LIGHT INDICATION. WHILE RETURNING TO THE AIRPORT THE ENGINE QUIT. THE PILOT UTILIZED THE HAND OPERATED WOBBLE PUMP TO RESTART THE ENGINE. THE ENGINE RESTARTED THEN QUIT AGAIN A FEW SECONDS LATER. THE PILOT INITIATED A FORCED LANDING AND THE AIRCRAFT COLLIDED WITH GROUND OBSTRUCTIONS. NO FUEL WAS FOUND IN THE AIRCRAFT TANKS DURING POST ACCIDENT EXAM.

## Aircraft

- Registration: [N4410S](https://openairdocs.org/deregistered/N4410S-1998-02-19), registration cancelled 1998-02-19, S/N 3010070 (OpenAirDocs)
- Reported make and model: AIR TRACTOR AT301
- Registry model: [Air Tractor AT-301](https://openairdocs.org/model/air-tractor-at-301) (registry code 0390103) (OpenAirDocs)
- Category: Airplane
- Serial number: 301-0070
- Airframe hours: 1700
- Engines: P&W R-1340AN1 550 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Aero Spray, Inc.
- Registered owner: S & M Spraying, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, August 27, 1985, 18 hours before
- Departed: GILBERT, AZ

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 5,110 total, 18 in this make and model, 5,099 as pilot in command, 75 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: calm
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point -0 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19860812039539A](https://openairdocs.org/incident/19860812039539A), Aug 12, 1986: Airtrc AT301, Gilbert, AZ, Substantial damage. Engine failed due to fuel exhaustion during aerial application maneuvers. Pilot force landed aircraft in field.

## Other investigations on N4410S (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX92LA348](https://openairdocs.org/ntsb/LAX92LA348), Aug 13, 1992: Air Tractor AT301 (N4410S), Laveen, AZ, destroyed. Probable cause: THE PILOT'S FAILURE TO MAINTAIN ALTITUDE DURING THE LOW-LEVEL AERIAL APPLICATION PROCEDURE TURN. CONTRIBUTING TO THIS ACCIDENT WAS THE NIGHT CONDITION AND THE HIGH TENSION WIRES.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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