CEN15LA391

NTSB accident investigation · Ference John W Thatcher CX4A · Hebron, OH · August 31, 2015

Accident · Minor injuriesLimited investigationFinal report
Date
August 31, 2015, 18:05 local (22:05 UTC)
Place
Hebron, OH
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N443JFFerence John W Thatcher CX4A
Defining event
Takeoff: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report October 3, 2016
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA
FAA report
20150831014669A
Case key
91894

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The loss of engine power for reasons that could not be determined because a postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.

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.

Not determinedNot determined › Not determined · Unknown/Not determinedFerence John W THATCHER CX4A: 1 caseAll aircraft: 2,247 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 private pilot was taking off for a personal local flight. The pilot reported that, shortly after takeoff, the engine lost power. The pilot restarted the engine, but it then lost power again. The airplane subsequently descended into a cornfield and came to rest upright. An examination of the airframe revealed that the engine control cables were routed close to the left rudder pedal; however, it could not be determined if the control cables' location caused them to move and contributed to the loss of engine power. Weather conditions at the time of the accident were conducive to the formation of serious carburetor icing at glide power. However, the airplane was taking off, and the engine would not have been at glide power; therefore, it is not likely that carburetor ice caused the loss of engine power. The reason for the loss of engine power could not be determined.

Factual narrative

On August 31, 2015, about 1805 eastern daylight time, a kit-built Thatcher CX4A airplane, N443JF, impacted terrain following a loss of engine power after departing the Buckeye Airport (9OA5), Hebron, Ohio. The pilot received minor injuries and the airplane was substantially damaged. The airplane was registered to and operated by a private individual under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight which operated without a flight plan. The local flight was originating at the time of the accident.The pilot reported to the Federal Aviation Administration (FAA) Inspector, that shortly after takeoff, when the airplane was approximately 50 feet above ground level, the engine lost power. The pilot restarted the engine, but the engine again lost power. The airplane descended into a cornfield and came to rest in the upright position. The responding FAA inspectors noted substantial damage was sustained to the airplane's fuselage, wings, and right horizontal stabilizer. An examination of the airplane and engine FAA inspectors did not find any preimpact anomalies which would have precluded normal operation. The inspector noted that the engine control cables were routed close to the left rudder pedal. The engine's carburetor had recently been changed and the accident flight was the first flight since the maintenance. However, it could not determine if the control cables' location played a factor in the loss of engine power. The nearest weather reporting facility was located at the Newark-Heath Airport, Newark, Ohio. At 1754, it recorded a wind from 240° at 4 knots, temperature 82° F, and dew point 68° F. A review of the carburetor icing probability chart located in the FAA Special Airworthiness Information Bulletin CE-09-35, Carburetor Icing Prevention, found that the airplane was operating in an area conducive to the formation of serious icing at glide power. The pilot did not submit an NTSB Form 6120, but stated he did not think that the location of the engine control cable contributed to the loss of engine power.

Aircraft

Registration
N443JF
Reported as
Ference John W Thatcher CX4A
Category
Airplane, amateur-built
Serial number
355
Built
2013
Engine
Revmaster 2300, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
December 30, 2013 · 30 hours before
Departed
9OA5 · Hebron, OH
Destination
9OA5 · Hebron, OH
Airport
9OA5 · Buckeye, runway 19, 2,764 × 25 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
85
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Seat
Single

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 68 °F
Altimeter
30.05 inHg
Observed at
KVTA, 5 nm away

Docket · 4

The files NTSB released with the investigation on June 29, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.2 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.