WPR25LA185

NTSB accident investigation · Silvaire Luscombe 8A · San Andreas, CA · June 20, 2025

Accident · No injuriesClass 4 · LimitedFinal report
Date
June 20, 2025, 11:55 local (18:55 UTC)
Place
San Andreas, CA · KCPU
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N28545Silvaire Luscombe 8A
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report November 14, 2025
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
Case key
200372

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot’s loss of directional control during landing roll following an encounter with a dust devil.

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleSilvaire LUSCOMBE 8A: 5 casesAll aircraft: 3,958 casesProbable cause
Wind: dust devil/whirlwindEnvironmental issues › Conditions/weather/phenomena · Effect on operationSilvaire LUSCOMBE 8A: 1 caseAll aircraft: 38 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 pilot of a tailwheel equipped airplane reported that after performing a wheel landing, the tailwheel settled onto the runway. Shortly after, the airplane encountered a strong gust of wind or dust devil, which turned the airplane about 90° to the left. Subsequently, the airplane exited the left side of the runway, traveled down an embankment, and both main landing gear collapsed before the airplane came to rest upright. The airplane sustained substantial damage to the left wing. The pilot reported there were no preimpact mechanical malfunctions or failures with the airframe or the engine that would have precluded normal operation. At the time of the accident, the pilot was landing the airplane on runway 31 with wind from 270° at 10 knots, gusting to 15 knots. One witness characterized the wind as a spiraling wind with extreme lift.

Aircraft

Registration
N28545
Reported as
Silvaire Luscombe 8A
Category
Airplane
Serial number
1374
Built
1940
Airframe hours
9,591
Engine
Cont Motor A&C65 SERIES, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · September 13, 2024 · 17 hours before
Departed
K069 · Petaluma, CA
Destination
Same as departure
Airport
CPU · Calaveras County/Maury Rasmussen Fld, runway 31, 3,602 × 60 ft, asphalt
Equipment
Handheld GPS

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
77
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
August 8, 2025
Seat
Left
Flight hours
2,082 total · 1,726 in this make and model · 2,029 as pilot in command · 53 in the last 90 days · 23 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 10 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
None
Temperature
76 °F, dew point 43 °F
Altimeter
29.88 inHg
Turbulence
Moderate
Observed at
KCPU
METAR
KCPU 201855Z AUTO 00000KT 10SM CLR 25/02 A2990 RMK AO2 T02480019

Docket · 3

The files NTSB released with the investigation on November 14, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 15.9 MB in all.

Other investigations on N28545 · 1

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