Apex Airpark Airport
Aircraft Accident/Incident Report

Silverdale, Washington 98383
Saturday, August 11, 2007 14:22 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that on takeoff, about 30 feet agl and with an indicated airspeed of 54 mph, the airplane rolled left. "Full right stick did not immediately level the wings and the nose dropped thru horizontal." The airplane struck the ground "immediately west of the runway in a nearly flat attitude." The pilot commented that "a higher airspeed during climb out may have provided enough control authority to overcome the wind-induced left roll." The pilot reported the wind direction as variable, the wind speed as light and variable, and no wind gusts.

NTSB Probable Cause Narrative

The pilot's failure to maintain adequate airspeed during takeoff initial climb, which resulted in an inadvertent stall and uncontrolled descent to terrain impact.

Event Information

Type of Event Accident
Event Date 8/11/2007
Event Day of the Week Saturday
Time of Event 1422
Event Time Zone Pacific Daylight Time
Event City Silverdale
Event State WASHINGTON
Event Country --
Zipcode of the event site 98383
Event Date Year 2007
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 473925N
Event Location Longitude 1224359W
Event Location Airport Apex Airpark
Event Location Nearest Airport ID WA05
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) --
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 1
Investigating Agency --
NTSB Docket Number (internal use) 22542
NTSB Notification Source FAA ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Nov 29 2007 8:02AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N422NL
NTSB Number SEA07CA227
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion --
Aircraft Manufacturer's Full Name Mapes
Aircraft Model Kitfox V
Aircraft Series Identifier --
Aircraft Serial Number 94060032
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed --
ELT Activated --
ELT Aided Location of Event Site --
ELT Type --
Aircraft Owner Name Donald J. Mapes
Aircraft Owner Street Address --
Aircraft Owner City Bremerton
Aircraft Owner State WA
Aircraft Owner Country USA
Aircraft Owner Zipcode --
Operator is an individual? Yes
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board --
Departure Point Same as Event Yes
Departure Airport Code WA05
Departure City Silverdale
Departure State WA
Departure Country USA
Departure Time --
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code WA05
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 12 2007 1:42PM
User who most recently changed record STAM
Since inspection or accident --
Event Location Runway Number and Location 35
Runway Length 2500
Runway Width 28
Sight Seeing flight No
Air Medical Flight No
Medical Flight --