SEA07CA162

NTSB accident investigation · Schempp-Hirth Nimbus-3DM · Minden, NV · June 16, 2007

Accident · Minor injuriesData collectionFinal report
Date
June 16, 2007, 14:30 local (21:30 UTC)
Place
Minden, NV
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N374AMSchempp-Hirth Nimbus-3DM
Weather
Visual (VMC) · Day
Status
Completed · report August 30, 2007
Report
Approved by Office Director
FAA report
20070616012909A
Case key
65994

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 flight's encounter with severe downdrafts during cruise flight. Contributing factors were the pilot's inadvertent selection of unsuitable terrain with hidden obstructions.

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 encounter with weatherCruise
Weather condition - downdraftCause
On ground/water encounter with terrain/waterLanding - roll
Unsuitable terrain or takeoff/landing/taxi area - inadvertentPilot in commandFactor
Terrain condition - hidden obstruction(s)Factor

Analysis

The pilot of the motor glider reported that he had been airborne on a local soaring flight for about 30 minutes when the flight encountered "severe downdrafts." Due to the downdrafts, he was unable to return to the airport and had to land in an alfalfa field. During the landing roll, the glider collided with a ditch and a fence that were not visible during the landing approach.

Factual narrative

The pilot of the motor glider reported that he had been airborne on a local soaring flight for about 30 minutes when the flight encountered "severe downdrafts." Due to the downdrafts, he was unable to return to the airport and had to land in an alfalfa field. During the landing roll, the glider collided with a ditch and a fence that were not visible during the landing approach.

Aircraft

Registration
N374AM
Reported as
Schempp-Hirth Nimbus-3DM
Category
Glider
Serial number
9
Engine
Rotax 535C, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Departed
MEV · Minden, NV
Destination
MEV

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
49
Injuries
Minor
Certificates
Flight engineer, Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1
Flight hours
20,200 total · 108 in this make and model · 225 in the last 90 days · 95 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 12 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F

FAA reports on this event · 1

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