# NTSB investigations: Brantly B-2B, MI

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 CEN18FA001](https://openairdocs.org/ntsb/CEN18FA001.md): Brantly B 2B · Midland, MI · Accident · 1 fatal · Field investigation · Final report · Oct 1, 2017 · N2284U · Substantial damage
  > The pilot's failure to maintain control of the helicopter, which resulted in a loss of tail rotor effectiveness, and his failure to promptly initiate the proper recovery technique, which resulted in a descent that could not be arrested before impacting the…
- [NTSB CEN13LA546](https://openairdocs.org/ntsb/CEN13LA546.md): Brantly B-2B · Rothbury, MI · Accident · Minor injuries · Limited investigation · Final report · Aug 29, 2013 · N2253U · Substantial damage
  > The pilot’s failure to maintain helicopter control while turning to avoid trees during an aborted takeoff in gusting wind conditions.
- [NTSB CHI05CA120](https://openairdocs.org/ntsb/CHI05CA120.md): Brantly Helicopter B-2B · Lakeview, MI · Accident · No injuries · Data collection · Final report · May 20, 2005 · N2274U · Substantial damage
  > The dual student failed to maintain adequate rotor rpm during the practice autorotation and the instructor's delay in attempting remedial action. A factor associated with the accident was the soft terrain that was encountered.
- [NTSB CHI99LA292](https://openairdocs.org/ntsb/CHI99LA292.md): Brantly Helicopter B-2B · Hudson, MI · Accident · No injuries · Limited investigation · Final report · Aug 15, 1999 · N2238U · Substantial damage
  > was an inadequate preflight and misjudged flare to landing during the autorotation by the pilot. A factor in this accident was a totally blocked fuel tank vent system.
- [NTSB CHI86LA134](https://openairdocs.org/ntsb/CHI86LA134.md): Brantly Helicopter B-2B · Mt Clemens, MI · Accident · Serious injuries · Limited investigation · Final report · Apr 27, 1986 · N2194U · Destroyed
  > After aprx 20 successful takeoffs & landings, the eng of the helicopter lost power at about 300 ft AGL, due to a #1 connecting rod failure. During an autorotation, the helicopter landed in trees & was destroyed. Although the pilot was instructing a new…
- [NTSB CHI69F0058](https://openairdocs.org/ntsb/CHI69F0058-109925.md): Brantly B-2B · Grand Ledge, MI · Accident · Minor injuries · Closed · Jun 23, 1968 · N2267U · Destroyed

## 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."eventStateOrRegion" = 'MI' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1440506'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1440506&state=MI

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