N63JJSCHLEICHER ASK-212009-06-30 NTSB Accident Report

Substantial
Minor

SCHLEICHER ASK-21S/N: 21248

Summary

On June 30, 2009, a Schleicher ASK-21 (N63JJ) was involved in an accident near Jean, NV. The accident resulted in 1 minor injury. The aircraft sustained substantial damage.

The National Transportation Safety Board determined the probable cause of this accident to be: The pilot's failure to maintain control of the glider during the initial climb due to an inadvertent encounter with wind.

The pilot reported that after climbing to about 50 feet above ground level and reaching an airspeed of about 60 knots "...the glider would not continue to climb and immediately began to descend." The pilot stated that he lowered the nose and released the tow rope to land straight ahead, but immediately upon releasing [the tow rope] the left wing raised and the aircraft drifted right between the two runways.

This accident is documented in NTSB report WPR09CA479. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N63JJ.

Accident Details

Date
Tuesday, June 30, 2009
NTSB Number
WPR09CA479
Location
Jean, NV
Event ID
20091028X64332
Coordinates
35.768333, -115.329719
Nearest Airport
Aircraft Damage
Substantial
Highest Injury
Minor
Fatalities
0
Serious Injuries
0
Minor Injuries
1
Uninjured
0
Total Aboard
1

Probable Cause and Findings

The pilot's failure to maintain control of the glider during the initial climb due to an inadvertent encounter with wind.

Aircraft Information

Registration
Make
SCHLEICHER
Serial Number
21248
Engine Type
Reciprocating
Year Built
1986
Model / ICAO
ASK-21AS21
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1

Registered Owner (Historical)

Name
SALE REPORTED
Address
PO BOX 19565
Status
Deregistered
City
GOODSPRINGS
State / Zip Code
NV 89019-9565
Country
United States

Analysis

The pilot reported that after climbing to about 50 feet above ground level and reaching an airspeed of about 60 knots "...the glider would not continue to climb and immediately began to descend." The pilot stated that he lowered the nose and released the tow rope to land straight ahead, but immediately upon releasing [the tow rope] the left wing raised and the aircraft drifted right between the two runways. The pilot further stated, "In spite of a full left control stick input the glider continued to roll steeply right, and at the same time [I] had the sensation of being blown sideways and that the tail was being lifted up in an uncontrollable nose-down attitude." The pilot reported that the aircraft struck the ground on the right wing tip first, then the front nose wheel, then the tail wheel. The aircraft sustained substantial damage to the undercarriage and the empennage. The pilot stated that he thought he had encountered a dust devil that was not in view and to the rear of the glider during takeoff. A witness reported that the glider seemed to be "...pushed down, though making forward progress until it turned steeply right." The pilot reported no anomalies with the glider.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# WPR09CA479