CEN09CA323

NTSB accident investigation · Air Tractor AT-502 · Mendota, IL · May 29, 2009

Accident · Minor injuriesData collectionFinal report
Date
May 29, 2009, 07:50 local (12:50 UTC)
Place
Mendota, IL
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N198LAAir Tractor AT-502
Defining event
Takeoff: Runway excursion
Weather
Visual (VMC) · Day
Status
Completed · report September 10, 2009
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20090529011239A
Case key
73929

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's inadequate preflight planning and preparation and his failure to perform an aborted takeoff.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Action: lack of actionPersonnel issues › Action/decision · PilotAir Tractor AT-502: 3 casesAll aircraft: 792 casesProbable cause
LoadingAircraft › Aircraft handling/service · Incorrect use/operationAir Tractor AT-502: 1 caseAll aircraft: 35 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The agricultural airplane was loaded about 300 pounds over its maximum gross weight for a commercial aerial application flight. The pilot stated that the airplane had not become airborne after traveling 3/4 down the runway. At that point in the takeoff, the pilot attempted to lift off, but the airplane settled back onto the runway. The airplane then overran the runway and hit a hill after which the airplane became airborne and then impacted the ground with its right wing tip and left wing, resulting in substantial damage. The pilot sustained minor injuries.

Factual narrative

The agricultural airplane was loaded about 300 pounds over its maximum gross weight for a commercial aerial application flight. The pilot stated that the airplane had not become airborne after traveling 3/4 down runway 36 (2,800 feet by 80 feet, turf). At that point in the takeoff, the pilot attempted to lift off, but the airplane settled back onto the runway. The airplane then overran the runway and hit a hill after which the airplane became airborne and then impacted the ground with its right wing tip and left wing resulting in substantial damage. The pilot sustained minor injuries.

Aircraft

Registration
N198LA
Reported as
Air Tractor AT-502
Category
Airplane
Serial number
502-0198
Airframe hours
9,391
Engine
Pratt & Whitney PT6A-34A6, 750 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
R & R Flight Service
Registered owner
Pilot
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · October 25, 2008
Departed
0C7 · Mendota, IL
Destination
0C7 · Mendota, IL
Airport
IL93 · Hendrickson Flying Service Air, runway 36, 2,800 × 80 ft, grass/turf

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
50
Injuries
Minor
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
April 12, 2008
Seat
Center
Flight hours
3,581 total · 412 in this make and model · 3,485 as pilot in command · 50 in the last 90 days · 50 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 55 °F
Altimeter
29.90 inHg
Observed at
RFD, 17 nm away

Docket · 4

The files NTSB released with the investigation on July 30, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.0 MB in all.

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 N198LA · 1

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