# NTSB investigations, 2021: Preflight or dispatch event

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 CEN22LA068](https://openairdocs.org/ntsb/CEN22LA068.md): CHR International Safari 400 · McKinney, TX · Accident · Serious injuries · Class 4 · Limited · Final report · Dec 9, 2021 · N666JS · Substantial damage
  > The pilot did not remove the cyclic control lock during preflight, which resulted in a loss of control during the initial hover.
- [NTSB CEN21LA415](https://openairdocs.org/ntsb/CEN21LA415.md): Cessna 170B · Ozark, AR · Accident · Serious injuries · Class 4 · Limited · Final report · Sep 12, 2021 · N2998D · Substantial damage
  > The pilot’s inadequate takeoff performance planning that resulted in a climb gradient too low to clear trees on departure, and his failure to maintain aircraft control that resulted in an aerodynamic stall and impact with terrain.
- [NTSB DCA21LA229](https://openairdocs.org/ntsb/DCA21LA229.md): Boeing 767-332 · Seattle, WA · Accident · Serious injuries · Class 4 · Limited · Final report · Sep 1, 2021 · N196DN · No damage
  > The flightcrew’s failure to set the hydraulic panel correctly during the execution of the pushback checklist, and when the hydraulic panel setting was corrected, that resulted in the airplane coming to a sudden stop and a flight attendant receiving a serious…
- [NTSB ERA21LA336](https://openairdocs.org/ntsb/ERA21LA336.md): Gulfstream Aerospace G-IV · Fort Lauderdale, FL · Accident · No injuries · Class 3 · Limited · Final report · Aug 21, 2021 · N277GM · Substantial damage
  > The pilot-in-command’s (PIC) and second-in-command’s (SIC) failure during preflight inspection to ensure that the nose landing gear’s pip pin was properly installed, which resulted in separation of the pip pin during takeoff. Contributing to the accident was…
- [NTSB CEN21FA334](https://openairdocs.org/ntsb/CEN21FA334.md): Air Tractor AT-802 · Benoit, MS · Accident · 1 fatal · Class 3 · Field · Final report · Jul 25, 2021 · N363BG · Substantial damage
  > The pilot’s exceedance of the airplane’s takeoff performance capabilities and his failure to abort the takeoff in a timely manner. Contributing to the accident was the pilot’s impairment due to his use of ethanol and prohibited medications.
- [NTSB ERA21LA292](https://openairdocs.org/ntsb/ERA21LA292.md): Robinson Helicopter R44 II · Princeton, KY · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 16, 2021 · N512RT · Substantial damage
  > The pilot’s inadequate preflight planning in that he failed to accurately determine the takeoff weight of the helicopter, which resulted in exceeding the helicopter’s maximum weight capability.
- [NTSB CEN21FA305](https://openairdocs.org/ntsb/CEN21FA305.md): Hawker Beechcraft G36 · Aspen, CO · Accident · 2 fatal · Class 3 · Field · Final report · Jul 4, 2021 · N36JJ · Destroyed
  > The pilot’s failure to navigate through mountainous terrain, which resulted in controlled flight into terrain.
- [NTSB ANC21LA056](https://openairdocs.org/ntsb/ANC21LA056.md): Cessna 170B · North Pole, AK · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 1, 2021 · N2746D · Destroyed
  > The pilot’s exceedance of the airplane’s takeoff performance limitations, which prevented the airplane from gaining sufficient altitude to clear the trees off the departure end of the runway.
- [NTSB CEN21FA272](https://openairdocs.org/ntsb/CEN21FA272.md): Antenor Velazco Lancair Evolution · Parker, CO · Accident · 2 fatal · Class 3 · Field · Final report · Jun 16, 2021 · N704AK · Destroyed
  > The pilot’s diversion of attention following an asymmetric flap deployment, which resulted in a descent and collision with powerlines. Contributing to the accident was maintenance personnel’s failure to properly secure the flap control rod attachment bolts,…
- [NTSB ERA21LA251](https://openairdocs.org/ntsb/ERA21LA251.md): Piper PA-24 · Monticello, NY · Accident · No injuries · Class 4 · Limited · Final report · Jun 5, 2021 · N5779P · Substantial damage
  > The pilot’s inadequate preflight inspection which resulted in a failure of the right main landing gear tire on landing rollout, a subsequent loss of directional control, and landing gear collapse.
- [NTSB WPR21LA110](https://openairdocs.org/ntsb/WPR21LA110.md): Dassault FALCON900EX · San Diego, CA · Accident · No injuries · Class 3 · Limited · Final report · Feb 13, 2021 · N823RC · Substantial damage
  > The flight crew’s operation of the airplane outside of the manufacturer’s specified weight and balance limitations and with an improper trim setting, which resulted in the airplane’s inability to rotate during the attempted takeoff. Contributing to the…

## 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 year(c."eventDate") = 2021
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '030' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/030/sequence?year=2021

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.