DEN07CA097

NTSB accident investigation · Stevenson RV-6 · Oakley, KS · June 1, 2007

Accident · Minor injuriesData collectionFinal report
Date
June 1, 2007, 18:00 local (23:00 UTC)
Place
Oakley, KS
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N836RVStevenson RV-6
Weather
Visual (VMC) · Day
Status
Completed · report July 25, 2007
Report
Approved by Office Director
FAA report
20070601012129A
Case key
65964

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 airspeed during final approach resulting in a inadvertent stall and impact with terrain.

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.

Loss of control - in flightApproach - vfr pattern - final approach
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterLanding
Terrain condition - ground
Object - tree(s)
Object - fence

Analysis

While on short final approach approximately 10 feet above ground level (agl), the pilot added a little power to the engine and then heard a "loud pop" sound. Subsequently, the airplane stalled and the left wing impacted the grass runway. The airplane bounced, impacted trees and a fence, and came to rest inverted adjacent to the runway. No anomalies were noted with the airframe and engine.

Factual narrative

According to the pilot, while on short final approach approximately 10 feet above ground level (agl), he added a little power to the engine and then heard a "loud pop" sound. Subsequently, the airplane stalled and the left wing impacted the grass runway. The airplane bounced, impacted trees and a fence, and came to rest inverted adjacent to the runway. The private pilot, who was the sole occupant and co-owner of the airplane, sustained minor injuries. Examination of the airplane revealed the vertical stabilizer and rudder were crushed. No anomalies were noted with the airframe and engine.

Aircraft

Registration
N836RV
Reported as
Stevenson RV-6
Category
Airplane, amateur-built
Serial number
21865
Engine
Superior XPIO-360, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Walter A. Stevenson
Airworthiness certificate
Standard, Normal
Departed
Oakley, KS

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
60
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Flight hours
210 total · 35 in this make and model · 3 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

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