Reed Memorial Airport
Aircraft Accident/Incident Report

Driggs, Idaho 83422
Thursday, August 4, 2005 15:15 MDT

NTSB Narrative Summary Released at Completion of Accident

The glider's tow plane pilot reported that during the pre-tow briefing, the glider pilot stated that he wanted to do three pattern tows and one high tow. The pilot then pulled the glider around to position for the takeoff tow. The tow plane pilot stated that shortly after 1500, he started the takeoff without any problems. The pilot flew a circling turn to the right and went to mid-field and made another right turn crossing the runway, and climbing to 1,200 feet above ground level (agl) for the release. The tow pilot then circled to land on runway 21. The tow pilot stated that as he was taxiing back he noticed the glider, no higher than 75 feet agl, pitch nose down. The tow pilot stated that the glider was too low and just before it hit the ground, it looked like the nose was starting to come up. The glider collided with the ground short of runway 21 in about a 45 degree nose down attitude. Post accident inspection of the wreckage did not disclose evidence of a mechanical failure or malfunction.

NTSB Probable Cause Narrative

The pilot's failure to maintain aircraft control while maneuvering in the traffic pattern for landing. The pilot's failure to maintain a proper altitude was a factor.

Event Information

Type of Event Accident
Event Date 8/4/2005
Event Day of the Week Thursday
Time of Event 1515
Event Time Zone Mountain Daylight Time
Event City Driggs
Event State IDAHO
Event Country --
Zipcode of the event site 83422
Event Date Year 2005
Event Date Month 8
MidAir Collision Indicator --
On Ground Collision occurred ? --
Event Location Latitude 434400N
Event Location Longitude 1110500W
Event Location Airport Reed Memorial
Event Location Nearest Airport ID U59
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0.25
Degrees magnetic from airport --
Airport Elevation 6228
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1515 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 104
Weather Observation Facility ID JAC
Elevation of weather observation facility 6451
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation MDT
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) 8
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) 320
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.38
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 19427
NTSB Notification Source FAA Regional Operations Center
NTSB Notification Date Aug 4 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 28 2006 1:55PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Salt Lake City, Utah

Aircraft Involved

Aircraft #1

Aircraft Registration Number N153SS
NTSB Number SEA05LA164
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 None
Aircraft Manufacturer's Full Name Burkhart Grob
Aircraft Model G103 Twin Astir
Aircraft Series Identifier --
Aircraft Serial Number 3094
Certified Max Gross Weight 1435
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 2
Number of Engines 0
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 1 2005 12:00AM
Airframe hours since last inspection 16
Airframe Hours 587
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name James G. Davis
Aircraft Owner Street Address --
Aircraft Owner City Rexburg
Aircraft Owner State ID
Aircraft Owner Country USA
Aircraft Owner Zipcode 83440
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Driggs
Departure State ID
Departure Country USA
Departure Time 1500
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code U59
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 9 2008 10:47AM
User who most recently changed record JOHB
Since inspection or accident Time of Accident
Event Location Runway Number and Location 21
Runway Length 7300
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --