DEN03LA104

NTSB accident investigation · Diamond Aircraft Industries DA 20-A1 · Eureka, UT · June 13, 2003

Accident · Minor injuriesLimited investigationFinal report
Date
June 13, 2003, 10:00 local (16:00 UTC)
Place
Eureka, UT
Injuries
2 minor
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N630DADiamond Aircraft Industries DA 20-A1
Weather
Visual (VMC) · Day
Status
Completed · report February 5, 2004
Report
Approved by Office Director
Parties
Salt Lake City FSDO
FAA report
20030613011359A
Case key
57211

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's improper in-flight planning and failure to maintain aircraft control. Contributing factors include high density altitude, hilly terrain, low airspeed and the subsequent inadvertent stall/mush.

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 control - in flightManeuvering - turn to reverse direction
In-flight planning/decision - improperPilot in commandCause
Aircraft control - not maintainedPilot in commandCause
Airspeed - lowFactor
Stall/mush - inadvertentPilot in commandFactor
Weather condition - high density altitudeFactor
Terrain condition - mountainous/hillyFactor
Weather condition - turbulence
In flight collision with objectDescent - uncontrolled
Object - tree(s)Factor

Analysis

According to the pilot, he was maneuvering over the sand dunes between Eureka and Delta. The temperature was rising and it started getting "bumpy" so he elected to return to Provo. While flying over the mountains west of Eureka, approximately 1000 feet above ground level, his "controls became mush." The airplane began descending rapidly, at which time the pilot "put in full prop[eller] and power, pitch[ing] for 75 kts." It was apparent that the airplane would not clear the rising terrain, so the pilot reversed course towards the "canyon." The pilot stated the airspeed was "right above stall speed." Subsequently, the aircraft collided with the trees. The airplane's empennage was separated from the fuselage.

Factual narrative

On June 13, 2003, at 1000 mountain daylight time, a Diamond Aircraft Industries DA 20-A1, N630DA, was destroyed when it impacted terrain west of Eureka, Utah. The private pilot and his passenger received minor injuries. Visual meteorological conditions prevailed and no flight plan had been filed for the local flight being conducted under Title 14 CFR Part 91. The flight originated from Provo, Utah, at 0815.

According to the pilot, he was maneuvering over the sand dunes between Eureka and Delta. The temperature was rising and it started getting "bumpy" so he elected to return to Provo. While flying over the mountains west of Eureka, approximately 1,000 feet above ground level, his "controls became mush." The airplane began descending rapidly, at which time the pilot "put in full prop[eller] and power, pitch[ing] for 75 kts." It was apparent that the airplane would not clear the rising terrain so the pilot reversed course towards the "canyon." The pilot stated the airspeed was "right above stall speed." Subsequently, the airplane collided with the trees.

The airplane's empennage was separated from the fuselage. An examination of the airplane's systems revealed no anomalies.

Aircraft

Registration
N630DA
Reported as
Diamond Aircraft Industries DA 20-A1
Category
Airplane
Serial number
10300
Airframe hours
2,316
Engine
Rotax 912F, 80 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Nathan L. Bennett
Registered owner
Michael A Tevik
Airworthiness certificate
Standard, Utility
Last inspection
Annual · March 31, 2003 · 75 hours before
Departed
PVU · Provo, UT

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
24
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
January 23, 2003
Seat
Left
Flight hours
179 total · 15 in this make and model · 134 as pilot in command · 23 in the last 90 days · 10 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 50 °F
Altimeter
29.96 inHg
Observed at
PVU, 35 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.