ERA20LA325

NTSB accident investigation · Ercoupe F 1 · West Kingston, RI · September 21, 2020

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
September 21, 2020, 16:00 local (20:00 UTC)
Place
West Kingston, RI · Solar panel field
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N3000GErcoupe F 1
Defining event
Initial climb: Fuel contamination
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Eastern Region Aviation
Parties
FAA FSDO
FAA report
20200921019279A
Case key
102009

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 failure to conduct a proper preflight inspection and ensure the fuel was uncontaminated, which resulted in a partial loss of engine power and forced landing.

Findings · 4

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.

Inspection: preflight inspectionPersonnel issues › Task performance · PilotForney F-1: 1 caseAll aircraft: 551 casesProbable cause
Engine fuel and control: fuel distributionAircraft › Aircraft power plant · Inadequate inspectionForney F-1: 1 caseAll aircraft: 55 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Inadequate inspectionForney F-1: 1 caseAll aircraft: 1,695 casesProbable cause
Object/animal/substanceEnvironmental issues › Physical environment · Contributed to outcomeForney F-1: 1 caseAll aircraft: 224 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

Shortly after takeoff, during initial climb out, the pilot noted a decrease in engine performance and that the airplane was unable to climb or maintain altitude. After unsuccessfully attempting to troubleshoot the issue, he performed a forced landing in field that was populated by solar panels. During the landing the airplane struck several of the solar panels, resulting in substantial damage to both wings and the fuselage. Postaccident examination of the engine and fuel system revealed the presence of water and other contaminates in the gascolator, carburetor bowl, carburetor inlet screen, and engine-driven fuel pump. The examination did not otherwise discover evidence of any mechanical malfunctions or failures that would have precluded normal operation. The pilot stated that while he performed his preflight inspection, which included sampling fuel from the airplane’s the header fuel tank, he historically always had difficulty with water in the fuel, specifically from the header tank and gascolator. Given this information it is likely that the partial loss of engine power the pilot experienced during the climb was due to contamination of the engine’s fuel supply with water and debris.

Aircraft

Registration
N3000G
Reported as
Ercoupe F 1 (Undesignat)
Category
Airplane
Serial number
5692
Built
1959
Airframe hours
4,426
Engine
Continental C90-12F, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 10, 2019 · 55 hours before
Destination
Same as departure
Airport
08R · Richmond Airport West Kingston
Equipment
Handheld GPS, ADS-B

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
70
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
BasicMed, With waivers/limitations
Last flight review
April 24, 2019
Seat
Left
Restraint
Lap only
Flight hours
1,229 total · 287 in this make and model · 1,132 as pilot in command · 13.5 in the last 90 days · 7.9 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 10 knots
Visibility
10 statute miles
Temperature
64 °F, dew point 30 °F
Altimeter
30.47 inHg
Observed at
WST, 12 nm away

Docket · 6

The files NTSB released with the investigation on June 9, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.5 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.