# NTSB investigations, MI: Loss of tail rotor effectiveness

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 GAA15CA102](https://openairdocs.org/ntsb/GAA15CA102.md): Bell 206 - B11 · Caledonia, MI · Accident · No injuries · Data collection · Final report · May 29, 2015 · N206ED · Substantial damage
  > A loss of tail rotor effectiveness while maneuvering at low altitude, resulting in a collision with trees.
- [NTSB CEN15LA185](https://openairdocs.org/ntsb/CEN15LA185.md): Giackino Donald W Rotorway 162F · Marquette, MI · Accident · No injuries · Limited investigation · Final report · Mar 28, 2015 · N556DG · Substantial damage
  > The loss of helicopter control for reasons that could not be determined based on the available evidence.

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '242' 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/242/sequence?state=MI

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