WPR26LA184

NTSB accident investigation · Vans RV-6A · Kooskia, ID · May 11, 2026

Accident · No injuriesClass 4 · LimitedFinal report
Date
May 11, 2026, 11:30 local (18:30 UTC)
Place
Kooskia, ID · Moose Creek APT (1U1)
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N333PKVans RV-6A
Defining event
Landing-landing roll: Nose over/nose down
Weather
Visual (VMC) · Day
Status
Completed · report July 9, 2026
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
202977

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 collision with a hole in the runway surface during the landing roll, which resulted in a nose over.

Findings · 1

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.

Runway/land/takeoff/taxi surfaceEnvironmental issues › Physical environment · Effect on operationKormylo Philip C RV6-A: 1 caseAll aircraft: 253 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 reported that during the landing roll on a grass strip, about halfway down the runway, the airplane’s nose landing gear struck a hole in the runway surface, which resulted in the airplane nosing over. The airplane came to rest inverted and sustained substantial damage to the vertical stabilizer and rudder. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N333PK
Reported as
Vans RV-6A
Category
Airplane, amateur-built
Serial number
PK-2
Built
1999
Airframe hours
740
Engine
Lycoming O320-H2AD, 170 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · December 8, 2025 · 40 hours before
Departed
MAN · Nampa, ID
Destination
Same as departure
Airport
1U1 · Moose Creek Ranger Station, runway 04, 2,300 × 200 ft, grass/turf
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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
61
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
May 10, 2024
Seat
Left
Restraint
4-point
Flight hours
1,400 total · 700 in this make and model · 1,400 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Lowest ceiling
None
Temperature
70 °F, dew point 39 °F
Altimeter
30.14 inHg
Observed at
KP69, 28 nm away
METAR
METAR KP69 111752Z AUTO VRB05KT 21/04 A3014 RMK AO1 SLP193 T02110039 10228 20078 58014

Docket · 3

The files NTSB released with the investigation on July 9, 2026, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.4 MB in all.