Chehalem Airpark Airport
Aircraft Accident/Incident Report

Newberg, Oregon 97132
Monday, August 19, 2002 9:35 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot of the tail-wheel equipped Piper PA-18 was executing a landing on runway 25 under calm wind conditions when the aircraft began to veer to the right. The aircraft departed the runway and then impacted a fence. Both the pilot and the accompanying instructor reported that the application of left rudder was unsuccessful in controlling the aircraft's direction. Subsequent examination of the aircraft's brake system revealed that the right main gear brake disc was warped.

NTSB Probable Cause Narrative

A warped right brake disc resulting in a veer to the right during the landing roll, and the aircraft's subsequent collision with a fence. A contributing factor was the fence.

Event Information

Type of Event Accident
Event Date 8/19/2002
Event Day of the Week Monday
Time of Event 935
Event Time Zone Pacific Daylight Time
Event City Newberg
Event State OREGON
Event Country --
Zipcode of the event site 97132
Event Date Year 2002
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 451925N
Event Location Longitude 1230316W
Event Location Airport Chehalem Airpark
Event Location Nearest Airport ID 17S
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 190
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 953 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 185
Weather Observation Facility ID MMV
Elevation of weather observation facility 163
Distance of event from weather observation facility (units?) 8
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
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) 16
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.99
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 12910
NTSB Notification Source FAA ROC
NTSB Notification Date Aug 19 2002 12:00AM
NTSB Notification Time 1012
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Apr 15 2003 4:03PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Portland (Hillsboro, OR)

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1277A
NTSB Number SEA02LA160
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-18
Aircraft Series Identifier --
Aircraft Serial Number 18-1072
Certified Max Gross Weight 1750
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 1 2002 12:00AM
Airframe hours since last inspection 10
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Robert W. Nall
Aircraft Owner Street Address --
Aircraft Owner City Hillsboro
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97124
Operator is an individual? No
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code 7S3
Departure City Hillsboro
Departure State OR
Departure Country USA
Departure Time 915
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code 17S
Destination City Newberg
Destination State OR
Destination Country USA
Specific Phase of Flight Landing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Oct 24 2002 12:57PM
User who most recently changed record STAM
Since inspection or accident --
Event Location Runway Number and Location 25
Runway Length 2285
Runway Width 40
Sight Seeing flight No
Air Medical Flight No
Medical Flight --