# NTSB investigations, 2014: 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 CEN15FA003](https://openairdocs.org/ntsb/CEN15FA003.md): Bell Helicopter Textron 206L 1 · Wichita Falls, TX · Accident · 3 fatal · Field investigation · Final report · Oct 4, 2014 · N335AE · Destroyed
  > The pilot’s failure to maintain yaw control when he applied power to execute a go-around at a low airspeed in dark, night conditions, which resulted in a rapid, uncommanded right yaw due to a loss of tail rotor effectiveness.
- [NTSB CEN15LA002](https://openairdocs.org/ntsb/CEN15LA002.md): Bell 206B · Woodsboro, TX · Accident · Serious injuries · Limited investigation · Final report · Oct 2, 2014 · N49746 · Substantial damage
  > The pilot’s failure to recognize and correct for flight conditions conducive to a loss of tail rotor effectiveness, which resulted in a rapid, uncommanded right yaw and subsequent hard landing.
- [NTSB CEN14CA500](https://openairdocs.org/ntsb/CEN14CA500.md): Robinson Helicopter R44 · Beaumont, TX · Accident · No injuries · Data collection · Final report · Sep 15, 2014 · N9844N · Substantial damage
  > The pilot's loss tail rotor effectiveness while attempting a taxiway side-step during landing. Contributing to the accident was another pilot's failure to ensure the runway was clear before occupying the runway for takeoff.
- [NTSB WPR14LA341](https://openairdocs.org/ntsb/WPR14LA341.md): Mcdonnell Douglas Helicopter 500N · Idaho Falls, ID · Accident · No injuries · Limited investigation · Final report · Aug 12, 2014 · N18GH · Substantial damage
  > The pilot’s loss of helicopter control for reasons that could not be determined because postaccident examination of the helicopter did not reveal any mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB WPR14CA325](https://openairdocs.org/ntsb/WPR14CA325.md): Robinson Helicopter R44 II · Honolulu, HI · Accident · No injuries · Data collection · Final report · Aug 2, 2014 · N110JC · Substantial damage
  > The pilot's inadequate compensation for the wind conditions and failure to maintain aircraft control during taxi, which resulted in a loss of tail rotor effectiveness and subsequent impact with the taxiway and a parked fuel truck.
- [NTSB WPR14GA281](https://openairdocs.org/ntsb/WPR14GA281.md): American Eurocopter AS350B3 · Fallon, NV · Accident · Minor injuries · Final report · Jul 4, 2014 · N832PA · Substantial damage
  > A loss of tail rotor effectiveness, which resulted in an uncontrolled rotation and descent into terrain. Contributing to the accident was a sudden shift in wind conditions and the helicopter's high power demand condition due to its load weight and operating…
- [NTSB CEN14CA142](https://openairdocs.org/ntsb/CEN14CA142.md): Robinson Helicopter R44 II · Bonham, TX · Accident · No injuries · Data collection · Final report · Feb 14, 2014 · N494SH · Substantial damage
  > The pilot's inadequate recovery from a loss of tail rotor effectiveness during a low altitude downwind hover in a gusty wind condition resulting in the helicopter contacting the ground and rolling over.
- [NTSB CEN14GA109](https://openairdocs.org/ntsb/CEN14GA109.md): American Eurocopter AS350B3 · Encino, TX · Accident · Serious injuries · Final report · Jan 10, 2014 · N3948A · Substantial damage
  > The pilot’s failure to maintain directional control while maneuvering, which resulted in a loss of tail rotor effectiveness. Contributing to the accident were the pilot’s limited experience in the operating environment and lack of formal mission training.

## 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") = 2014
  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?year=2014

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