Wenatchee Airport
Aircraft Accident/Incident Report

Wenatchee, Washington 98801
Sunday, June 10, 1990 17:30 PDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT FLEW TOO FAR IN A VFR TRAFFIC PATTERN ON THE DOWNWIND LEG TO RETURN TO THE RUNWAY FOR LANDING. THE ACFT UNDERSHOT THE RUNWAY AND IMPACTED TERRAIN OFF THE ARPT.

NTSB Probable Cause Narrative

PILOT'S IMPROPER INFLIGHT PLANNING WHICH RESULTED IN THE AIRCRAFT UNDERSHOOTING THE RUNWAY. FACTORS IN THE ACCIDENT WERE THE HIGH, GUSTY WIND CONDITIONS.

Event Information

Type of Event Accident
Event Date 6/10/1990
Event Day of the Week Sunday
Time of Event 1730
Event Time Zone Pacific Daylight Time
Event City WENATCHEE
Event State WASHINGTON
Event Country --
Zipcode of the event site 98801
Event Date Year 1990
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport WENATCHEE
Event Location Nearest Airport ID EAT
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1720 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 30
Weather Observation Facility ID EAT
Elevation of weather observation facility 1245
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 20000
Lowest Non-Ceiling Height 7500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 30
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Unknown
Wind Speed (knots) 18
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 25
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 1625
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) 500
NTSB Notification Source --
NTSB Notification Date Jun 10 1990 12:00AM
NTSB Notification Time 1800
Fiche Number and/or location -used to find docket information 41434
Date of most recent change to record Dec 12 2000 5:04PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1696
NTSB Number SEA90LA099
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BRIEGLEB
Aircraft Model BG-12B
Aircraft Series Identifier BG-12B
Aircraft Serial Number 169
Certified Max Gross Weight 850
Aircraft Category Glider
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 1
Number of Engines 0
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name CASCADE SOARING SOCIETY
Aircraft Owner Street Address 1328 ORCHARD ST.
Aircraft Owner City WENATCHEE
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 98801
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 No
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1450
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 25
Runway Length 1100
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --