# NTSB investigations: Lycoming 0-540F1 SERIE: Loss of control - in flight

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 CHI07LA309](https://openairdocs.org/ntsb/CHI07LA309.md): Robinson R44 · Jackson Center, OH · Accident · No injuries · Limited investigation · Final report · Sep 30, 2007 · N8353K · Destroyed
  > The reported vibration in the helicopter during an approach for landing for undetermined reasons. Contributing to the accident was the mature cornfield.
- [NTSB LAX06CA221](https://openairdocs.org/ntsb/LAX06CA221.md): Robinson R-44 · Fresno, CA · Accident · No injuries · Data collection · Final report · Jun 29, 2006 · N52EP · Substantial damage
  > the pilot's failure to maintain directional control following a loss of tail rotor effectiveness while in a downwind hover.
- [NTSB DFW05CA169](https://openairdocs.org/ntsb/DFW05CA169.md): Robinson R44 · Rayville, LA · Accident · No injuries · Data collection · Final report · Jun 19, 2005 · N744MD · Substantial damage
  > The pilot's loss of control following an encounter with loss of tail rotor effectiveness. A contributing factor was the high density altitude.
- [NTSB LAX05LA164](https://openairdocs.org/ntsb/LAX05LA164.md): Robinson R44 · Gustine, CA · Accident · No injuries · Limited investigation · Final report · May 11, 2005 · N144SM · Substantial damage
  > the improper installation of the nut/bolt assembly connecting the left cyclic push-pull tube to the non-rotating swashplate by maintenance personnel, which led to a loss of roll control during takeoff.
- [NTSB SEA01FA089](https://openairdocs.org/ntsb/SEA01FA089.md): Robinson R44 · Gorst, WA · Accident · 2 fatal · Field investigation · Final report · May 11, 2001 · N111PH · Destroyed
  > An abrupt application of the tail rotor/anti-torque pedal by an unknown pilot resulting in tail rotor contact with the tail boom. Tail rotor blades and empennage assembly separation, and trees were factors.
- [NTSB ATL92FA102](https://openairdocs.org/ntsb/ATL92FA102.md): Piper PA-32-260 · Greenville, NC · Accident · 6 fatal · Field investigation · Final report · May 15, 1992 · N2259T · Destroyed
  > Failure of the pilot to maintain a proper climb rate after takeoff after becoming spatially disoriented. Factors related to the accident were: the adverse weather conditions, the pilot's self-induced pressure to make the flight, and his lack of total…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41531')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 250))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41531&occurrence=250

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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.