DEN86FTM02

NTSB accident investigation · Denney Aerocraft Kitfox · Ogden, UT · May 20, 1986

Accident · Serious injuriesFinal report
Date
May 19, 1986, 18:36 local (May 20, 1986, 00:36 UTC)
Place
Ogden, UT
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N85LADenney Aerocraft Kitfox
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860519018609A
Case key
16862

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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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - mech failure/malfTakeoff - initial climb
Ignition system,ignition lead - disabledCause
Maintenance,modification - improperCause
Loss of control - in flightTakeoff - initial climb
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

Shortly after takeoff, the acft had a partial power loss. The left wing then dipped sharply & the acft entered a steep nose low descent & crashed on the nw corner of the arpt. An investigation revealed a noise suppressor was installed on one of 2 spark plug wires of the 2 cylinder engine to improve the performance of the hand held, 2-WAY radio. Due to a deficiency in the noise suppressor, there was no continuity in that respective wire.

Aircraft

Registration
N85LA
Reported as
Denney Aerocraft Kitfox
Category
Airplane, amateur-built
Serial number
14
Airframe hours
60
Engine
Rotax 503, 52 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Louis W. Anderson
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · December 2, 1986 · 50 hours before
Airport
OGD · Ogden Muni, runway 34, 5,352 × 200 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
52
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
161 total · 60 in this make and model · 160 as pilot in command · 53 in the last 90 days · 15 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 3 knots
Visibility
50 statute miles
Lowest ceiling
None
Altimeter
29.00 inHg
Observed at
OGD, 1 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.