Minden Tahoe Airport
Aircraft Accident/Incident Report

Minden, Nevada 89243
Monday, July 16, 2001 16:20 PDT

NTSB Narrative Summary Released at Completion of Accident

The instructor said that on their second circuit in the landing pattern, the student was flying the glider within acceptable limits. He was controlling his airspeed and sink rate properly on long final. The glider was approaching runway 30 when they noticed another glider that was much lower and needed priority for the runway. The instructor directed the student to do a sidestep maneuver and land on runway 30 left, a parallel dirt runway. The student began a left sideslip to line up on the parallel runway. The instructor stated that he was controlling the slip properly, and was controlling his sink rate with small applications of the spoilers. During the landing flare, the student applied full spoiler while still 1 to 1 1/2 feet in the air, at approximately 60 knots. The instructor was unable to overcome the rapid nose down pitching moment and the subsequent increase in sink rate. The left wing was slightly lower than the right due to the previous slip maneuver. When the glider landed hard, the left wing made contact with the ground, resulting in a ground loop to the left. The instructor believed that no damage had been done to the glider, but upon exiting the cockpit, he noticed that the tail boom had cracked just ahead of the empennage structure. The instructor stated that in the future, he will place his hand just behind the spoiler control lever and restrict the aft movement to an acceptable position for the flight conditions.

NTSB Probable Cause Narrative

The student pilot's early deployment of full spoilers, resulting in an excessive sink rate and subsequent hard landing. A factor was the instructor's lack of time to take remedial action.

Event Information

Type of Event Accident
Event Date 7/16/2001
Event Day of the Week Monday
Time of Event 1620
Event Time Zone Pacific Daylight Time
Event City Minden
Event State NEVADA
Event Country --
Zipcode of the event site 89243
Event Date Year 2001
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Minden Tahoe Airport
Event Location Nearest Airport ID MEV
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 4717
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 2256 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 160
Weather Observation Facility ID KRNO
Elevation of weather observation facility 4412
Distance of event from weather observation facility (units?) 60
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 22000
Lowest Non-Ceiling Height 7000
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 16
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 20
Altimeter Setting at event time (in. Hg) 29.86
Density Altitude (feet) 7187
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) 11588
NTSB Notification Source FAA
NTSB Notification Date Jul 17 2001 12:00AM
NTSB Notification Time 1516
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record May 14 2002 9:31AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-FSDO Reno, Nevada

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4805R
NTSB Number LAX01LA249
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 Burkhart Grob
Aircraft Model G 103 Twin II
Aircraft Series Identifier --
Aircraft Serial Number 3854-K-100
Certified Max Gross Weight 1279
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 2
Number of Engines 0
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 18 2001 12:00AM
Airframe hours since last inspection 69.3
Airframe Hours 7246.4
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Soar Minden, Inc.
Aircraft Owner Street Address P.O. Box 1746
Aircraft Owner City Minden
Aircraft Owner State NV
Aircraft Owner Country USA
Aircraft Owner Zipcode 89423
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 Yes
Departure Airport Code MEV
Departure City Minden
Departure State NV
Departure Country USA
Departure Time 1616
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code MEV
Destination City Minden
Destination State NV
Destination Country USA
Specific Phase of Flight Landing - flare/touchdown
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Feb 16 2002 2:57PM
User who most recently changed record COOS
Since inspection or accident Time of Accident
Event Location Runway Number and Location 30
Runway Length 2260
Runway Width 20
Sight Seeing flight No
Air Medical Flight No
Medical Flight --