WPR25LA138

NTSB accident investigation · Schweizer SGS 2-33A · Hood River, OR · April 19, 2025

Accident · No injuriesClass 4 · LimitedFinal report
Date
April 19, 2025, 11:37 local (18:37 UTC)
Place
Hood River, OR
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N5786SSchweizer SGS 2-33A
Defining event
Approach-VFR pattern final: Loss of lift
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20250419003359A
Case key
200048

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 glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight.

Findings · 2

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.

Temp/humidity/pressure: thermal liftingEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeSchweizer SGS 2-33A: 3 casesAll aircraft: 53 casesProbable cause
Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleSchweizer SGS 2-33A: 6 casesAll 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

The flight instructor reported that while turning final, the glider encountered a loss of lift and there was not sufficient altitude to reach the airport. The instructor chose to land in an orchard, and during the landing roll, the glider struck several small trees, which resulted in substantial damage to the left wing and left horizontal stabilizer. The pilot reported that there were no preaccident mechanical malfunctions or failures with the glider that would have precluded normal operation.

Aircraft

Registration
N5786S
Reported as
Schweizer SGS 2-33A
Category
Glider
Serial number
115
Built
1968
Airframe hours
2,841
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 24, 2024
Departed
4S2 · Hood River, OR
Destination
Same as departure
Airport
4S2 · Ken Jernstedt Airfield, runway 07/25, 3,040 × 75 ft, asphalt
Equipment
None

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
62
Injuries
None
Certificates
Flight instructor, Commercial
Last flight review
October 16, 2024
Seat
Rear
Restraint
4-point
Flight hours
372.2 total · 16.9 in this make and model · 357.9 as pilot in command · 78.7 in the last 90 days · 33.3 in the last 30 days
Role
Student pilot
Seat
Front
Restraint
4-point
Flight hours
4 total · 4 in this make and model · 4 in the last 90 days · 4 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 12 knots, gusting 20
Visibility
10 statute miles
Lowest ceiling
None
Temperature
59 °F, dew point 36 °F
Altimeter
30.13 inHg
Turbulence
Extreme
Observed at
K4S2, 1 nm away
METAR
K4S2 191835Z AUTO 31012G20KT 260V320 10SM CLR 15/02 A3013 RMK AO2

Docket · 3

The files NTSB released with the investigation on July 3, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.4 MB 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.

Other investigations on N5786S · 1

Matched to the same aircraft by N-number and date.