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NTSB Report

September 9, 2021 · Thatcher CX4 · N306TA

Marshalltown, IA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
September 9, 2021
Injury Outcomes
1 injury (1 minor injury)
Location
Marshalltown, IA
Aircraft
Thatcher CX4 (2008)
Tail Number
N306TA
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
CEN21LA419

The pilot stated that he visually inspected the airplane fuel quantity before the flight and estimated there was 6 gallons of fuel. He said there was enough fuel for the planned flight with a fuel consumption rate of 3.5 gallons/hour. After he flew to an airport to perform a touch-and-go landing, in addition to local area flying, he began a return flight to the departure airport. He then realized that the airplane fuel quantity gauge indicated a fuel consumption that was greater than he had planned. About 3 miles from the departure/destination airport, the fuel gauge indicated near empty, and the engine ceased operation. He said he restarted the engine, which operated for about 5 seconds and then quit again. The pilot performed a forced landing on a corn field, during which the airplane nosed over. The airplane sustained substantial damage that included damage to the fuselage, empennage, and both wings. The pilot said the loss of engine power was due to his overestimation of fuel quantity during his preflight of the airplane and the inaccuracy of the fuel gauge. The pilot said there was no mechanical malfunction or failure of the airplane that would have precluded normal operations.

NTSB Probable Cause

The pilot’s failure to properly determine the correct fuel quantity during preflight inspection that resulted in a loss of engine power during approach due to fuel exhaustion.

Full Narrative

The pilot stated that he visually inspected the airplane fuel quantity before the flight and estimated there was 6 gallons of fuel. He said there was enough fuel for the planned flight with a fuel consumption rate of 3.5 gallons/hour. After he flew to an airport to perform a touch-and-go landing, in addition to local area flying, he began a return flight to the departure airport. He then realized that the airplane fuel quantity gauge indicated a fuel consumption that was greater than he had planned. About 3 miles from the departure/destination airport, the fuel gauge indicated near empty, and the engine ceased operation. He said he restarted the engine, which operated for about 5 seconds and then quit again. The pilot performed a forced landing on a corn field, during which the airplane nosed over. The airplane sustained substantial damage that included damage to the fuselage, empennage, and both wings. The pilot said the loss of engine power was due to his overestimation of fuel quantity during his preflight of the airplane and the inaccuracy of the fuel gauge. The pilot said there was no mechanical malfunction or failure of the airplane that would have precluded normal operations.

Flight

Event TypeAccident
Event Time12:45 CDT
Nearest AirportMarshalltown Municipal Airport (1.5nm WNW)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftThatcher CX4
Tail NumberN306TA
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRevmaster · 2100D · Reciprocating · 65
Seats1

People & Injuries

Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 68 · Sprt · Minor

Conditions

ConditionsVMC
LightDaylight
Wind290° @ 6 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point54
Altimeter30.07 inHg
Observation Time11:53
Weather SourceWFAC

Appendix: Source Data