NTSB investigations: Glaser-Dirks DG-400

8 cases on aircraft the registry lists as Glaser-Dirks DG-400. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Cases per year

19832026
NTSB investigations: Glaser-Dirks DG-400 per year, 1983–2026: 8 cases
19831
19861
19901
19921
19971
19991
20041
20091

Latest cases

Query with SQL
duckdb -csv -c "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"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB WPR09FA089Accident · 1 fatalField investigationFinal reportGlaser-Dirks DG-400 · Volcano, HIThe pilot's loss of pitch control and subsequent exceedance of the glider's airspeed limit for undetermined reasons.Jan 16, 2009 · N777WN · DestroyedNTSB SEA04LA063Accident · 1 fatalLimited investigationFinal reportGlasflugel STD Libelle 201B · Oso, WAThe pilot of the Glaser-Dirks (lead glider) failure to maintain clearance from the Glasflugel (trailing glider) resulting in a mid-air collision while maneuvering.Apr 2, 2004 · N161D · 2 aircraft · Substantial damageNTSB NYC99LA102Accident · Minor injuriesLimited investigationFinal reportGlaser-Dirks DG-400 · New Milford, CTThe manufacturer's use of inadequate adhesive material which resulted in the de-bonding and subsequent failure of the wing spar pin-lock assembly.May 1, 1999 · N400FJ · DestroyedNTSB SEA97LA142Accident · No injuriesLimited investigationFinal reportGlaser-Dirks DG-400 · Weston, ORThe 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…Jun 14, 1997 · N321V · Substantial damageNTSB LAX93LA039Accident · No injuriesLimited investigationFinal reportGlaser-Dirks DG400 · Calistoga, CAThe 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.Nov 14, 1992 · N360GG · Substantial damageNTSB LAX90DXQ05Accident · Minor injuriesFinal reportGlaser-Dirks DG 400/17 · Truckee, CAThe 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.Sep 23, 1990 · N567DA · Substantial damageNTSB NYC86FA114Accident · 1 fatalField investigationFinal reportGlaser-Dirks DIRK-DG-400 · Julian, PAThe 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…Apr 28, 1986 · N40MS · 2 aircraft · DestroyedNTSB NYC83LA133Accident · No injuriesLimited investigationFinal reportDG 400 · Morrisville, VTThe 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.Jun 5, 1983 · N430LT · Substantial damage