Crazy Creek Glider Port Airport
Aircraft Accident/Incident Report

Middletown, California 95461
Friday, April 12, 2013 13:15 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that during his return to the airport, the glider encountered heavy downdrafts. Unable to reach the airport, he executed an off-airport landing to a field. During the landing on rough terrain, the glider ground looped, which resulted in substantial damage to the tail and wings. The pilot reported no preimpact mechanical malfunctions or failures with the glider that would have precluded normal operation.

NTSB Probable Cause Narrative

The glider’s encounter with atmospheric lift conditions not sufficient to maintain flight, which resulted in a forced landing on rough terrain.

Event Information

Type of Event Accident
Event Date 4/12/2013
Event Day of the Week Friday
Time of Event 1315
Event Time Zone Pacific Daylight Time
Event City Middletown
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95461
Event Date Year 2013
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 384619N
Event Location Longitude 1223431W
Event Location Airport Crazy Creek Glider Port
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 2
Degrees magnetic from airport --
Airport Elevation 1000
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1953 Coordinated Universal Time? Same as GMT
Direction of event from weather observation facility (degrees) 35
Weather Observation Facility ID KSTS
Elevation of weather observation facility 118
Distance of event from weather observation facility (units?) 22
Time Zone of the weather observation UTC
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 25000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 8
Air Temperature at event time (in degrees celsius) 21
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.88
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KSTS 121953Z 16003KT 10SM SCT250 21/09 A2988
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 31437
NTSB Notification Source Pilot (6120.1 mailed into the
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 6 2013 11:26AM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N503CW
NTSB Number WPR13CA218
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 SCHLEICHER
Aircraft Model ASW-27
Aircraft Series Identifier --
Aircraft Serial Number 27165
Certified Max Gross Weight --
Aircraft Category Glider
Aircraft Registration Class --
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 30 2012 12:00AM
Airframe hours since last inspection --
Airframe Hours 1164
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name WESTERINEN CHARLES J
Aircraft Owner Street Address --
Aircraft Owner City CARMICHAEL
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 95608-0642
Operator is an individual? No
Operator Name WESTERINEN CHARLES J
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City CARMICHAEL
Operator State CA
Operator Country USA
Operator Zip code 95608-0642
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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) Glider Tow
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code --
Departure City Middletown
Departure State CA
Departure Country USA
Departure Time 1300
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code --
Destination City Middletown
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 6 2013 11:26AM
User who most recently changed record coos
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --