CEN15LA177

NTSB accident investigation · Ercoupe 415 C · St Jacob, IL · March 7, 2015

Accident · No injuriesLimited investigationFinal report
Date
March 7, 2015, 15:00 local (20:00 UTC)
Place
St Jacob, IL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N87EVErcoupe 415 C
Defining event
Approach-VFR go-around: Fuel contamination
Weather
Visual (VMC) · Day
Status
Completed · report August 25, 2015
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20150307002789A
Case key
90906

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 loss of engine power during the go-around due to fuel contamination.

Findings · 1

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.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid conditionErcoupe 415-C: 2 casesAll aircraft: 1,695 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 pilot reported that he was flying the accident airplane under a ferry permit to the destination airport. However, due to unsafe runway conditions at the destination, he chose to land at an alternate airport nearby. Upon arrival at the alternate airport, the pilot executed an aborted landing. He applied engine power and climbed the airplane to about 150 to 200 ft and then the engine lost power without any warning. During the forced landing, the airplane sustained substantial wing and firewall damage. During a postaccident engine run using the header tank fuel from the accident flight, the engine started, ran roughly, and would not accelerate smoothly. The header tank was drained, and fresh aviation fuel was added to the tank; the engine then ran smoothly and accelerated normally. The engine likely lost power due to contaminated fuel.

Factual narrative

On March 7, 2015, about 1500 central daylight time, an Ercoupe 415-C airplane, N87EV, impacted terrain during a forced landing following a loss of engine power during a go-around near the St Louis Metro-East Airport/Shafer Field (3K6), St Jacob, Illinois. The private pilot was uninjured. The airplane sustained substantial firewall and wing damage. The airplane was registered to an individual and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91 as a ferry flight. Day visual flight rules conditions prevailed for the flight, which did not operate on a flight plan. The flight originated from the A Paul Vance Fredericktown Regional Airport (H88), near Fredericktown, Missouri, about 1400.The pilot stated in his accident report that he was flying the accident airplane under a ferry permit from H88 to Sackman Field Airport (H49), near Columbia, Illinois. However, due to unsafe runway conditions at H49, 3K6 was chosen as an alternate airport. Upon arrival at 3K6, the pilot executed an aborted landing. He applied engine power and climbed about 150-200 feet. The engine lost power without any "coughing" or warning. At 1358, the recorded weather at the Scott Air Force Base/MidAmerica Airport, near Belleville, Illinois, was: Wind 230 degrees at 2 knots; visibility 10 statute miles; sky condition clear; temperature 18 degrees C; dew point 1 degree C; altimeter 30.13 inches of mercury. A Federal Aviation Administration inspector examined the accident airplane. He observed that the fuel exiting from the header fuel tank was not aviation gasoline. The inspector observed the accident airplane during a subsequent engine run. The engine started, ran rough, and it would not accelerate smoothly when it was fed fuel from the header tank containing fuel from the accident flight. The header tank was drained and fresh aviation gasoline was added to the tank. The engine ran smoothly and accelerated normally.

Aircraft

Registration
N87EV
Reported as
Ercoupe 415 C (C)
Category
Airplane
Serial number
958
Built
1946
Airframe hours
2,411
Engine
Cont Motor A&C75 SERIES, 75 horsepower, reciprocating
Damage
Substantial damage
Flight
Ferry · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 25, 2015
Departed
H88 · Fredericktown, MO
Destination
3K6 · St Jacob, IL
Airport
3K6 · St Louis Metro-East, runway 13, 2,662 × 50 ft, asphalt

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
48
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
May 1, 2014
Seat
Left
Restraint
Lap only
Flight hours
456 total · 6 in this make and model · 9.3 in the last 90 days · 4.8 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 2 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 34 °F
Altimeter
30.12 inHg
Observed at
KBLV, 11 nm away

Docket · 2

The files NTSB released with the investigation on April 16, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.1 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.