# Major NTSB investigations: Unknown or undetermined

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 WPR25MA128](https://openairdocs.org/ntsb/WPR25MA128.md): Mitsubishi MU-2B-40 · Copake, NY · Accident · 6 fatal · Class 3 · Major · Preliminary report · Apr 12, 2025 · N635TA · Destroyed
  > On April 12, 2025, about 1203 eastern daylight time, a Mitsubishi MU-2B-40, N635TA, was destroyed when it was involved in an accident near Copake, New York. The pilot and five passengers were fatally injured. The airplane was operated as a Title 14 Code of…
- [NTSB CEN25MA115](https://openairdocs.org/ntsb/CEN25MA115.md): Eurocopter Deutschland EC 135 P2+ · Canton, MS · Accident · 3 fatal · Class 2 · Major · Preliminary report · Mar 10, 2025 · N835CS · Destroyed
  > On March 10, 2025, about 1237 central daylight time, an Airbus Helicopters (formerly Eurocopter Deutschland) EC135 P2+ helicopter, N835CS, operated as AirCare 3, was destroyed when it was involved in an accident near Canton, Mississippi. The commercial pilot,…
- [NTSB ERA25MA106](https://openairdocs.org/ntsb/ERA25MA106.md): Learjet 55 · Philadelphia, PA · Accident · 7 fatal · Class 2 · Major · Preliminary report · Jan 31, 2025 · XA-UCI · Destroyed
  > On January 31, 2025, at 1807 eastern standard time, a Learjet 55 airplane, Mexican registration XA-UCI (call sign MTS056) was destroyed when it was involved in an accident in Philadelphia, Pennsylvania. The two pilots, two medical crewmembers, and two…
- [NTSB ANC20MA010](https://openairdocs.org/ntsb/ANC20MA010.md): Airbus AS350B2 · Kekaha, HI · Accident · 7 fatal · Class 1 · Major · Final report · Dec 27, 2019 · N985SA · Destroyed
  > The pilot’s decision to continue flight under visual flight rules (VFR) into instrument meteorological conditions (IMC), which resulted in the collision into terrain. Contributing to the accident was Safari Aviation Inc.’s lack of safety management processes…
- [NTSB CEN19MA190](https://openairdocs.org/ntsb/CEN19MA190.md): Textron B-300 · Addison, TX · Accident · 10 fatal · Class 2 · Major · Final report · Jun 30, 2019 · N534FF · Destroyed
  > The pilot’s failure to maintain airplane control following a reduction of thrust in the left engine during takeoff. The reason for the reduction in thrust could not be determined. Contributing to the accident was the pilot’s failure to conduct the airplane…
- [NTSB CEN19FA072](https://openairdocs.org/ntsb/CEN19FA072.md): Bell 407 · Zaleski, OH · Accident · 3 fatal · Class 1 · Field · Final report · Jan 29, 2019 · N191SF · Destroyed
  > The NTSB determines that the probable cause of this accident was Survival Flight's inadequate management of safety, which normalized pilots' and operations control specialists' noncompliance with risk analysis procedures and resulted in the initiation of 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 (c.board_report_url IS NOT NULL OR c."investigationClass" = 'Class 1' OR c."caseType" = 'Major - Launch')
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '000' 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/000/sequence?major=1

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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.