SEA08CA163

NTSB accident investigation · Let Blanik L-13 · Arlington, WA · July 21, 2008

Accident · Minor injuriesData collectionFinal report
Date
July 20, 2008, 17:20 local (Jul 21, 2008, 00:20 UTC)
Place
Arlington, WA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N48029Let Blanik L-13
Weather
Visual (VMC) · Day
Status
Completed · report August 28, 2008
Report
Approved by Office Director
FAA report
20080720857599A
Case key
68514

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 failure to maintain clearance from a tree while making an off-field landing in a glider. Contributing to the accident was the pilot's inadequate compensation for the gusting winds.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Not specifiedLet BLANIK L-13: 1 caseAll aircraft: 1,199 casesProbable cause
Performance/control parameters: crosswind correctionAircraft › Aircraft oper/perf/capability · Not attained/maintainedLet BLANIK L-13: 1 caseAll aircraft: 184 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Not specifiedLet BLANIK L-13: 2 casesAll aircraft: 933 cases
Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedLet BLANIK L-13: 1 caseAll aircraft: 1,310 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

After a 15-minute glider flight, the pilot entered the traffic pattern for a planned full-stop landing on a grass airstrip that ran adjacent to the active paved runway. He then extended his downwind leg in order to create a greater clearance between himself and a powered airplane that was landing on the paved runway. After rolling out on base leg, the pilot realized that he had extended his downwind leg too far to reach the grass strip under the gusting wind conditions. He therefore decided to land in a field short of the grass runway. While maneuvering to land in that field, he failed to maintain clearance from a nearby tree. After the wing of the glider hit the tree, it cart-wheeled into the field, and sustained wrinkling and crushing damage to both wings and fuselage.

Factual narrative

After a fifteen minute glider flight, the pilot entered the traffic pattern for a planned full-stop landing on a grass airstrip that ran adjacent to the active paved runway. He then extended his downwind leg in order to create a greater clearance between himself and a powered airplane that was landing on the paved runway. After rolling out on base leg, the pilot realized that he had extended his downwind leg too far to reach the grass strip under the current gusting wind conditions. He therefore decided to land in a field short of the grass runway. While maneuvering to land in that field, he failed to maintain clearance from a nearby tree. After the wing of the glider hit the tree, it cart wheeled into the field, and sustained wrinkling and crushing damage to both its wings and fuselage.

Aircraft

Registration
N48029
Reported as
Let Blanik L-13
Category
Glider
Serial number
026050
Engine
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Evergreen Soaring
Airworthiness certificate
Standard, Normal
Departed
KAWO · Arlington, WA
Destination
KAWO
Airport
KAWO · Arlington Municipal, runway 34, 5,300 × 100 ft, grass/turf

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
66
Certificates
Airline transport, Flight instructor
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1
Flight hours
30,000 total · 26 in this make and model · 2 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 10 knots, gusting 20
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F

Docket · 1

The files NTSB released with the investigation on January 22, 2026, on NTSB’s docket system: statements, records, photos and specialists’ reports. 615 KB in all.

FAA reports on this event · 1

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