LAX91LA348

NTSB accident investigation · Experimental DSA-1 · Kingman, AZ · August 4, 1991

Accident · Minor injuriesLimited investigationFinal report
Date
August 4, 1991, 08:00 local (15:00 UTC)
Place
Kingman, AZ
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N4077KExperimental DSA-1
Weather
Visual (VMC) · Day
Status
Completed · report May 27, 1993
Report
Approved by Office Director
FAA report
19910804032049A
Case key
27319

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 pilot-in-command's failure to maintain the proper altitude to ensure terrain clearance while conducting low level aerobatic maneuvers, resulting in an in flight collision with terrain.

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.

In flight collision with terrain/waterManeuvering
Aerobatics - intentionalPilot in command
Proper altitude - not maintainedPilot in commandCause

Analysis

In a telephone interview the pilot said that he was performing a series of low level aerobatic maneuvers. During one series he said the aircraft 'got away from him' and collided with the ground. In his written report, the pilot attributed the accident to wind shear. The pilot reported no engine or aircraft system malfunctions prior to the accident.

Aircraft

Registration
N4077K
Reported as
Experimental DSA-1
Category
Airplane, amateur-built
Serial number
J5
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
James D. Janson

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
76
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
2,579 total · 25 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
75 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point -0 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.