# NTSB investigations: Glaser-Dirks DG-400

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB WPR09FA089](https://openairdocs.org/ntsb/WPR09FA089.md): Glaser-Dirks DG-400 · Volcano, HI · Accident · 1 fatal · Field investigation · Final report · Jan 16, 2009 · N777WN · Destroyed
  > The pilot's loss of pitch control and subsequent exceedance of the glider's airspeed limit for undetermined reasons.
- [NTSB SEA04LA063](https://openairdocs.org/ntsb/SEA04LA063.md): Glasflugel STD Libelle 201B · Oso, WA · Accident · 1 fatal · Limited investigation · Final report · Apr 2, 2004 · N161D · 2 aircraft · Substantial damage
  > The pilot of the Glaser-Dirks (lead glider) failure to maintain clearance from the Glasflugel (trailing glider) resulting in a mid-air collision while maneuvering.
- [NTSB NYC99LA102](https://openairdocs.org/ntsb/NYC99LA102.md): Glaser-Dirks DG-400 · New Milford, CT · Accident · Minor injuries · Limited investigation · Final report · May 1, 1999 · N400FJ · Destroyed
  > The manufacturer's use of inadequate adhesive material which resulted in the de-bonding and subsequent failure of the wing spar pin-lock assembly.
- [NTSB SEA97LA142](https://openairdocs.org/ntsb/SEA97LA142.md): Glaser-Dirks DG-400 · Weston, OR · Accident · No injuries · Limited investigation · Final report · Jun 14, 1997 · N321V · Substantial damage
  > The pilot's failure to attain a proper descent rate during the forced landing. Factors include: the pilot's failure to use an 'engine start' checklist, failure to turn the ignition switch to the 'on' position, failure to use the landing checklist, failure to…
- [NTSB LAX93LA039](https://openairdocs.org/ntsb/LAX93LA039.md): Glaser-Dirks DG400 · Calistoga, CA · Accident · No injuries · Limited investigation · Final report · Nov 14, 1992 · N360GG · Substantial damage
  > The failure of the brakes due to a separation of the brake cable for undetermined reasons. A factor in the accident was the tailwind condition during the landing rollout.
- [NTSB LAX90DXQ05](https://openairdocs.org/ntsb/LAX90DXQ05.md): Glaser-Dirks DG 400/17 · Truckee, CA · Accident · Minor injuries · Final report · Sep 23, 1990 · N567DA · Substantial damage
  > The uncommanded deployment of the right spoiler system due to the absence of a spring pin not fitted to the quick disconnect as recommended which resulted in the pilot losing control of the glider during a critical phase of flight.
- [NTSB NYC86FA114](https://openairdocs.org/ntsb/NYC86FA114.md): Glaser-Dirks DIRK-DG-400 · Julian, PA · Accident · 1 fatal · Field investigation · Final report · Apr 28, 1986 · N40MS · 2 aircraft · Destroyed
  > The plt of N686U reported he was established in weak thermal at an alt of aprx 2500 AGL when two other gliders were seen. One at aprx the same alt and one below his alt. He continued to state that the glider which was at his alt passed very close to but…
- [NTSB NYC83LA133](https://openairdocs.org/ntsb/NYC83LA133.md): DG 400 · Morrisville, VT · Accident · No injuries · Limited investigation · Final report · Jun 5, 1983 · N430LT · Substantial damage
  > The motorized glider was taxiing when the left wing tip caught in high grass and the acft veered to the left and penetrated a barbed wire fence.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3802510'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3802510

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