CHI05LA088

NTSB accident investigation · Air Tractor AT-602 · Imperial, NE · April 4, 2005

Accident · No injuriesLimited investigationFinal report
Date
April 4, 2005, 10:25 local (16:25 UTC)
Place
Imperial, NE
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N5015KAir Tractor AT-602
Weather
Visual (VMC) · Day
Status
Completed · report July 31, 2006
Report
Approved by Office Director
Parties
FAA
FAA report
20050404005059A
Case key
61269

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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Probable cause

The pilot's inadequate preflight planning which led to fuel exhaustion and subsequent loss of engine power. The soft ground was a factor.

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 powerApproach
Preflight planning/preparation - inadequatePilot in commandCause
Fluid,fuel - exhaustionCause
Forced landingEmergency descent/landing
Nose overEmergency descent/landing
Terrain condition - softFactor
Terrain condition - ground

Analysis

The aerial application airplane was damaged during a forced landing to a field following a loss of engine power. The pilot reported that he had about 40 minutes of fuel remaining when he exited the last sprayed field. He stated that when he was about 1 mile south of the airport, the engine lost power. He checked the fuel flow meter which "suggested" he had over 30 minutes of fuel remaining, with 1/4 in one tank and 1/8 in the other tank. He stated that he executed a landing to a field and the main landing gear sunk into the soft dirt and the airplane nosed over. Post accident examination of the airplane revealed no useable quantity of fuel remaining in the fuel tanks. Subsequent to the accident, the airplane's engine was removed from the airplane and a functional test performed. The engine was run on a test stand and no anomalies were found.

Factual narrative

On April 4, 2005, about 1025 mountain daylight time, an Air Tractor AT-602, N5015K, piloted by a commercial pilot, was substantially damaged during a forced landing following a loss of engine power while on approach to runway 31 at the Imperial Municipal Airport (IML), Imperial, Nebraska. The 14 CFR Part 137 flight was operating in visual meteorological conditions without a flight plan. The pilot was not injured. The local flight originated about 0928.

According to a report filed by the pilot, he had completed spray operations at a field located about 12 miles south of IML and was returning. He stated that according to the fuel flow meter he had about 40 minutes of fuel remaining when he exited the last field sprayed. He stated that when he was about 1 mile south of the airport, the engine lost power. He checked the fuel flow meter which "suggested" he had over 30 minutes of fuel remaining with 1/4 in one tank and 1/8 in the other tank. He stated that he executed a landing to a field and the main landing gear sunk into the soft dirt and the airplane nosed over.

Post accident examination of the airplane by Federal Aviation Administration inspectors revealed that some fuel had drained from the right wing fuel vent due to the position of the airplane. No other evidence of fuel leakage was detected. When the airplane was righted, no useable quantity of fuel was noted in the fuel tanks.

Subsequent to the accident, the airplane's engine was removed from the airplane and a functional test performed. The engine was run on a test stand and no anomalies were found with respect to the engine.

Aircraft

Registration
N5015K
Reported as
Air Tractor AT-602
Category
Airplane
Serial number
602-0429
Engine
Pratt & Whitney PT6A, 1,050 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Top Hat Aerial Applicators Inc
Registered owner
Top Hat Aerial Applicators, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · November 1, 2004 · 4 hours before
Departed
IML · Imperial, NE
Airport
IML · Imperial Muni

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
41
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
September 1, 2003
Seat
Center
Flight hours
3,301 total · 328 in this make and model · 3,204 as pilot in command · 4 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
55 °F, dew point 36 °F
Altimeter
29.62 inHg
Observed at
KIML, 1 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.