ERA09LA397

NTSB accident investigation · Aeronca 7AC · Auburn, ME · July 11, 2009

Accident · No injuriesLimited investigationFinal report
Date
July 11, 2009, 10:50 local (14:50 UTC)
Place
Auburn, ME
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N2871EAeronca 7AC
Defining event
Enroute-cruise: Fuel contamination
Weather
Visual (VMC) · Day
Status
Completed · report December 29, 2009
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20090711049169A
Case key
74251

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

A loss of engine power due to fuel contamination. Contributing to the accident was the inadequate maintenance inspection of the airplane and engine's fuel system.

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.

Fuel systemAircraft › Aircraft systems · Fatigue/wear/corrosionAeronca 7AC: 2 casesAll aircraft: 181 casesProbable cause
MaintenancePersonnel issues › Task performance · Maintenance personnelAeronca 7AC: 1 caseAll aircraft: 143 casesProbable cause
Fuel systemAircraft › Aircraft systems · Not serviced/maintainedAeronca 7AC: 2 casesAll aircraft: 181 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Fluid conditionAeronca 7AC: 4 casesAll aircraft: 1,695 cases

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 stated that they were at 2,800 ft agl, when the engine lost all power. He tried to restore power by applying carburetor heat, but was unsuccessful. He subsequently made a forced landing on a golf course, and the airplane flipped over inverted. Further examination of the airplane by a Federal Aviation Administration (FAA) inspector revealed that dirt and rust contamination was found in the gascolator, carburetor fuel bowl, and carburetor nozzles.

Factual narrative

On July 11, 2009, about 1050 eastern daylight time, an Aeronca Champ 7AC, N2871E had a total loss of engine power and nosed over while making a forced landing on a golf course near Auburn/Lewiston Municipal Airport, Maine. The private pilot and passenger were uninjured, and the airplane was substantially damaged by impact forces. The flight was operated as a personal flight under the provisions of 14 Code of Federal Regulations (CFR) Part 91 and no flight plan was filed. Visual meteorological conditions prevailed at the time of the accident. The pilot stated that he had just sold the airplane and was acting as pilot in command during the flight. He said that they were at 2,800 ft agl, when the engine lost all power. He tried to restore power by applying carburetor heat, but was unsuccessful. He subsequently made a forced landing on a golf course and the airplane flipped over inverted. Examination of the airplane by a Federal Aviation Administration (FAA) inspector revealed that; the pilot had drained all of the fuel out of the fuel tanks prior to his arrival. The FAA inspector stated that approximately 10 gallons of fuel was drained from the both wing tanks. Fuel samples were taken from the tanks at the fuel facility, and no contamination was noted. During further examination of the airplane, dirt and rust contamination was found in the gascolator, carburetor fuel bowl, and in the carburetor nozzles.

Aircraft

Registration
N2871E
Reported as
Aeronca 7AC
Category
Airplane
Serial number
7AC-6454
Airframe hours
1,638
Engine
Cont Motor A&C65 SERIES, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Mcgowan Patrick Kirk
Registered owner
Mcgowan Patrick Kirk
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 5, 2009
Departed
WVL · Waterville, ME
Destination
LEW · Auburn/Lewiston, ME

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
53
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, With waivers/limitations
Seat
Rear
Flight hours
1,500 total

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 11 knots, gusting 14
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 57 °F
Altimeter
30.15 inHg
Observed at
LEW, 3 nm away

Docket · 4

The files NTSB released with the investigation on September 21, 2009, 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.