# NTSB investigations: Drag control system

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 ERA25LA287](https://openairdocs.org/ntsb/ERA25LA287.md): Grob-Werke Twin Astir · Franconia, NH · Accident · No injuries · Class 4 · Limited · Final report · Jul 24, 2025 · N103GV · Substantial damage
  > The pilot’s failure to detect the inadvertent deployment of the spoilers, which resulted in a prolonged, excessive descent rate. Contributing to the accident was the pilot’s decision to conduct a downwind approach versus a straight in approach to the…
- [NTSB ERA22FA004](https://openairdocs.org/ntsb/ERA22FA004.md): Dassault Falcon 20 · Thomson, GA · Accident · 2 fatal · Class 3 · Field · Final report · Oct 5, 2021 · N283SA · Destroyed
  > The flight crew’s continuation of an unstable dark night visual approach and the captain’s instruction to use air brakes during the approach contrary to airplane operating limitations, which resulted in a descent below the glide path, and a collision with…
- [NTSB ERA21LA208](https://openairdocs.org/ntsb/ERA21LA208.md): Israel Aerospace Industries Gulfstream G150 · Ridgeland, SC · Accident · No injuries · Class 3 · Limited · Final report · May 5, 2021 · N22ST · Substantial damage
  > The flight crew’s continuation of an unstable approach and the failure of the ground air brakes to deploy upon touchdown, both of which resulted in the runway overrun. Contributing was the crew’s motivation and response to external pressures to complete the…
- [NTSB ERA13CA352](https://openairdocs.org/ntsb/ERA13CA352.md): Schweizer SGS 2-33A · Erwinna, PA · Accident · No injuries · Data collection · Final report · Aug 4, 2013 · N1211S · Substantial damage
  > The student pilot's improper altitude and energy management in the landing pattern which resulted in the glider impacting a tree and landing short of the runway.
- [NTSB ERA13CA310](https://openairdocs.org/ntsb/ERA13CA310.md): Schleicher Alexander ASH 26 E · Tullahoma, TN · Accident · No injuries · Data collection · Final report · Apr 12, 2013 · N26EL · Substantial damage
  > The pilot's improper use of wing spoilers during approach resulting in an altitude loss and collision with a tree.
- [NTSB ERA12CA454](https://openairdocs.org/ntsb/ERA12CA454.md): Let L-23 Super Blanik · Benton, TN · Accident · Minor injuries · Data collection · Final report · Jun 28, 2012 · N273BA · Substantial damage
  > The pilot's inadvertent extension of the wing airbrakes, which resulted in a loss of lift and subsequent landing prior to the runway.
- [NTSB DCA11IA047](https://openairdocs.org/ntsb/DCA11IA047.md): Boeing 737-7Q8 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Apr 26, 2011 · N799SW · Minor damage
  > The flight crew's delayed deployment of the speedbrakes and thrust reversers, resulting in insufficient runway remaining to bring the airplane to a stop. Contributing to the delay in deployment of these stopping devices was the flight crew's inadequate…
- [NTSB DCA11IA015](https://openairdocs.org/ntsb/DCA11IA015.md): Boeing 757-223 · Jackson Hole, WY · Incident · No injuries · Class 1 · Incident · Final report · Dec 29, 2010 · N668AA · No damage
  > a manufacturing defect in a clutch mechanism that prevented the speedbrakes from automatically deploying after touchdown, and the captain’s failure to monitor and extend the speedbrakes manually. Also causal was the failure of the thrust reversers to deploy…
- [NTSB ERA09LA282](https://openairdocs.org/ntsb/ERA09LA282.md): Dassault/Sud FAN JET · Jamestown, NY · Accident · No injuries · Limited investigation · Final report · Dec 21, 2008 · N165TW · Substantial damage
  > The inability to stop the airplane on the remaining runway because of icy runway conditions. A factor was the failure of the drag chute to properly deploy.
- [NTSB MIA08LA131](https://openairdocs.org/ntsb/MIA08LA131.md): AMS Flight APIS-M · Modena, NY · Accident · 1 fatal · Limited investigation · Final report · Jun 28, 2008 · N1870R · Substantial damage
  > The pilot's improper use of wing spoilers on final approach and his misjudged distance/altitude resulting in the glider colliding with trees short of the runway.

## 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01022760'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01022760/cases

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