ASN Wikibase Occurrence # 68332
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Date: | Sunday 21 June 1998 |
Time: | 11:30 |
Type: | Glaser-Dirks DG-800B |
Owner/operator: | Private |
Registration: | N98NL |
MSN: | 8-126B55 |
Total airframe hrs: | 4 hours |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Jean, NV -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | Jean, NV |
Destination airport: | Jean, NV |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The glider impacted terrain and the pilot reported that he lost elevator control. The bolt connecting the pushrod to the elevator was found, but the attaching nut was not found. The European production glider had a total time of 4 hours since manufacture. The metallurgist who examined the bolt reported the first three threads of the accident bolt did not have debris in the roots; however, proper engagement of the locknut would cause six threads to be free of debris. An exemplar locknut in the hand-tightened only position (without engaging the blue plastic lining of the locknut) caused the nut threads to wipe material from the roots of the first three bolt threads
The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The disconnection of the elevator control attachment nut due to improper installation by the manufacturer, which resulted in the pilot's loss of control.
Sources:
NTSB Identification: LAX98LA209
Revision history:
Date/time | Contributor | Updates |
26-Sep-2009 00:40 |
DColclasure |
Added |
26-Jun-2013 11:10 |
Alpine Flight |
Updated [Time, Cn, Nature, Narrative] |
21-Dec-2016 19:25 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
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