Stark's Twin Oaks Airpark Airport
Aircraft Accident/Incident Report

Hillsboro, Oregon 97124
Monday, June 16, 1997 15:00 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that the top cabin door latch popped open on takeoff. He made a 180 degree turn to return to the airport for landing (the airport was one-way, with takeoffs to the south and landings to the north). The pilot stated he actuated the gear switch to the down position, but 'evidently did not get the safety latch [which, according to the pilot's operating handbook, must be moved aside to place the switch to the up position] released.' The pilot noticed that the gear was still up, while in his landing flare. The departure end of the 2,365-foot landing runway has uphill terrain and trees, and the pilot reported he did not think he would be able to accomplish a successful go-around. He reported that he therefore elected to land gear-up rather than attempt a go-around. The pilot reported that no mechanical failure or malfunction was involved.

NTSB Probable Cause Narrative

the pilot's failure to ensure the landing gear was down and locked for landing. The unlatched passenger door, the uphill (unidirectional) landing area, and trees off the departure end of the landing runway were related factors.

Event Information

Type of Event Accident
Event Date 6/16/1997
Event Day of the Week Monday
Time of Event 1500
Event Time Zone Pacific Daylight Time
Event City HILLSBORO
Event State OREGON
Event Country --
Zipcode of the event site 97124
Event Date Year 1997
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport STARK'S TWIN OAKS AIRPARK
Event Location Nearest Airport ID 7S3
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 170
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 20
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 2
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1249
NTSB Notification Source --
NTSB Notification Date Jun 17 1997 12:00AM
NTSB Notification Time 1513
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:21PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1382Z
NTSB Number SEA97LA144
Missing Aircraft Indicator N
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 None
Aircraft Manufacturer's Full Name Beech
Aircraft Model N35
Aircraft Series Identifier N35
Aircraft Serial Number D-6804
Certified Max Gross Weight 3125
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 27 1996 12:00AM
Airframe hours since last inspection --
Airframe Hours 2900
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name HAROLD L. WEST
Aircraft Owner Street Address 72837 HIGHWAY 207
Aircraft Owner City ECHO
Aircraft Owner State OR
Aircraft Owner Country
Aircraft Owner Zipcode 97826
Operator is an individual? --
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? No
Certified for Part 133 or 137 Operation Unknown
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 No
Departure Point Same as Event Yes
Departure Airport Code 7S3
Departure City
Departure State
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code
Destination City UNKNOWN
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 2
Runway Length 2365
Runway Width 25
Sight Seeing flight No
Air Medical Flight No
Medical Flight --