DEN87FA153

NTSB accident investigation · Concept 70 · Durango, CO · June 17, 1987

Accident · No injuriesField investigationFinal report
Date
June 17, 1987, 17:00 local (23:00 UTC)
Place
Durango, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N23405Concept 70
Weather
Visual (VMC) · Day
Status
Completed · report October 6, 1988
Report
Approved by Office Director
FAA report
19870617072969A
Case key
17113

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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Analysis

The plt reported that he had been flying for one hour and had been doing acrobatics. He had started an inside loop and during pull up, he reported indicating 5.5 g's on his new g meter. The plt reported that both wings left the acft and he jettisoned the canopy. He bailed out and landed safely in trees. The acft fuselage impacted in a field and was destroyed. The wings and other wreckage were scattered over farm land in a one half mile path.

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.

Airframe/component/system failure/malfunctionManeuvering
Aerobatics - attemptedPilot in commandCause
Overconfidence in aircraft's abilityPilot in commandCause
Design stress limits of aircraft - exceededPilot in commandCause
Wing,bracing strut - overloadFactor
Flight control,elevator attachment - overloadFactor
Performance data - disregardedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Aircraft

Registration
N23405
Reported as
Concept 70
Category
Glider, amateur-built
Serial number
01
Airframe hours
500
Engine
None NONE, unknown
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Donald E. Howard
Registered owner
Coe A.D.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · June 1, 1984
Departed
9C08 · Durango, CO

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
39
Certificate
Private
Seat
Center
Flight hours
133 total · 133 in this make and model · 98 as pilot in command · 2 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
50 statute miles
Lowest ceiling
None
Temperature
64 °F

FAA reports on this event · 1

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