LAX08CA094

NTSB accident investigation · Ercoupe 415-D · Riverside, CA · March 20, 2008

Accident · No injuriesData collectionFinal report
Date
March 20, 2008, 14:30 local (21:30 UTC)
Place
Riverside, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N3942HErcoupe 415-D
Defining event
Initial climb: Fuel contamination
Weather
Visual (VMC) · Day
Status
Completed · report April 30, 2008
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20080320832509A
Case key
67784

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

Water contamination of the fuel system due to the pilot's inadequate preflight and failure to adequately drain the water from the fuel system.

Findings · 3

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 · PilotErcoupe 415-D: 1 caseAll aircraft: 551 casesProbable cause
Terrain: rough terrainEnvironmental issues › Physical environment · Not specifiedErcoupe 415-D: 1 caseAll aircraft: 442 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Incorrect service/maintenanceErcoupe 415-D: 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 fueled the airplane, sumped the wing tanks, and departed. The engine lost power at the end of the runway on climb out. He made a forced landing on the grass infield of the airport. The nose wheel went into a gopher hole, and the airplane nosed forward. Post crash examination established that the firewall sustained damage. The pilot reported that he also found water in the gascolator, and that the water most likely got into the fuel system during recent rains. He opined that a more thorough preflight could have prevented the accident.

Factual narrative

On March 20, 2008, about 1430 Pacific daylight time, an Ercoupe 415-D, N3942H, made an off airport forced landing following takeoff from Flabob Airport, Riverside, California. The pilot was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The certificated airline transport pilot was not injured. The airplane sustained substantial damage to the firewall. The personal cross-country flight was en route to Santa Monica, California. Visual meteorological conditions prevailed, and no flight plan had been filed.

The pilot reported that he fueled the airplane with 12 gallons of gas, sumped the wing tanks, and departed from runway 24. The engine lost power at the end of the runway on climb out. He made a forced landing on the grass infield of the airport. The nose wheel went into a gopher hole, and the airplane nosed forward.

Post crash examination established that the firewall sustained damage. The pilot reported that he also found water in the gascolator; he said that it had recently rained. He opined that a more thorough preflight could have prevented the accident.

Aircraft

Registration
N3942H
Reported as
Ercoupe 415-D
Category
Airplane
Serial number
4643
Engine
Teledyne Continental C-85, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Franklyn C Freeman
Registered owner
Thomas W Wathen Trustee
Airworthiness certificate
Standard, Normal
Departed
RIR · Riverside, CA
Destination
SMO · Santa Monica, CA
Airport
RIR · Flabob, runway 24, 3,200 × 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
55
Injuries
None
Certificates
Flight instructor, Airline transport, Commercial, Private
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2
Last flight review
June 1, 2007
Flight hours
2,500 total · 65 in this make and model · 2,350 as pilot in command · 15 in the last 90 days · 10 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 10 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 45 °F
Altimeter
30.09 inHg
Observed at
CNO, 11 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.