CEN14CA380

NTSB accident investigation · Dantonio 404 · Wichita Falls, TX · July 14, 2014

Accident · No injuriesData collectionFinal report
Date
July 14, 2014, 11:45 local (16:45 UTC)
Place
Wichita Falls, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N482FDDantonio 404
Defining event
Takeoff: Powerplant sys/comp malf/fail
Weather
Visual (VMC) · Day
Status
Completed · report October 27, 2014
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20140714011509A
Case key
89705

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 separation of a spark plug wire resulting in a loss of engine power during climb out and a subsequent forced landing on a field containing trees.

Findings · 2

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.

Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomeDavid R Dantonio 404: 1 caseAll aircraft: 933 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 took off for a local flight in his experimental amateur-built biplane. During climb out, near 250 feet above ground level, the engine lost power. The pilot performed a forced landing to a field that contained small trees. The lower wing sustained substantial damage on impact with a tree. An examination of the engine revealed that a spark plug wire had detached from its spark plug's terminal. The pilot's safety recommendation stated that installing an Adel clamp on one of the cylinder bolts will prevent the spark plug wire from vibrating off the spark plug terminal.

Factual narrative

The pilot took off for a local flight in his experimental amateur-built biplane. During climb out, near 250 feet above ground level, the engine lost power. The pilot performed a forced landing to a field that contained small trees. The lower wing sustained substantial damage on impact with a tree. An examination of the engine revealed that a spark plug wire had detached from its spark plug's terminal. The pilot's safety recommendation stated that installing an Adel clamp on one of the cylinder bolts will prevent the spark plug wire from vibrating off the spark plug terminal.

Aircraft

Registration
N482FD
Reported as
Dantonio 404 (NO SERIES)
Category
Airplane, amateur-built
Serial number
X69
Built
2013
Airframe hours
44
Engine
Polaris, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Pilot
Registered owner
Pilot
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · December 8, 2013
Departed
F14 · Wichita Falls, TX
Destination
F14 · Wichita Falls, TX
Airport
F14 · Wichita Valley

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
50
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
March 6, 2014
Seat
Single
Flight hours
218 total · 44 in this make and model · 56 as pilot in command · 64 in the last 90 days · 10 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 7 knots
Visibility
10 statute miles
Lowest ceiling
11,000 ft overcast
Temperature
86 °F, dew point 63 °F
Altimeter
30.04 inHg
Observed at
CWC, 8 nm away

Docket · 2

The files NTSB released with the investigation on October 15, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 590 KB 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.