# NTSB investigations: Bell 206-L4: 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 WPR26LA199](https://openairdocs.org/ntsb/WPR26LA199.md): Bell 206-L4 · Cedar City, UT · Accident · Minor injuries · Class 4 · Limited · Final report · May 23, 2026 · N917SU · Substantial damage
  > The flight instructor's failure to maintain helicopter control while manipulating the engine governor reference rpm adjustment during hover operations, which resulted in a loss of control and impact with the ground.
- [NTSB ERA25MA171](https://openairdocs.org/ntsb/ERA25MA171.md): Bell 206L-4 · Jersey City, NJ · Accident · 6 fatal · Class 2 · Major · Preliminary report · Apr 10, 2025 · N216MH · Destroyed
  > On April 10, 2025, about 1515 eastern daylight time, a Bell 206L-4 helicopter, N216MH, was destroyed when it was involved in an accident near Jersey City, New Jersey. The pilot and five passengers were fatally injured. The helicopter was operated as a Title…
- [NTSB GAA16CA179](https://openairdocs.org/ntsb/GAA16CA179.md): Bell 206 · Supai, AZ · Accident · Minor injuries · Data collection · Final report · Apr 6, 2016 · N73AW · Substantial damage
  > The pilot's decision to fly a normal approach and forgetting that the long line remained attached to the helicopter, which resulted in the line snagging on a ridgeline, a loss of lateral control, and a rollover.
- [NTSB CEN14FA286](https://openairdocs.org/ntsb/CEN14FA286.md): Bell 206 L4 · South Timbalier Platform · Accident · 2 fatal · Field investigation · Final report · Jun 11, 2014 · N207MY · Destroyed
  > The pilot's loss of helicopter control for reasons that could not be determined based on the available information.
- [NTSB CEN12FA321](https://openairdocs.org/ntsb/CEN12FA321.md): Bell 206-L4 · (Gulf of Mexico) · Accident · 1 fatal · Field investigation · Final report · May 28, 2012 · N7077F · Substantial damage
  > The pilot’s failure to maintain clearance from an obstacle while landing on an obstructed helipad, which resulted in a collision and loss of control. Contributing to the accident was the failure of the helipad owner to mark the helipad closed and the failure…
- [NTSB CEN10IA397](https://openairdocs.org/ntsb/CEN10IA397.md): Bell 206 · Gulf of Mexico, LA · Incident · No injuries · Incident investigation · Final report · Jul 12, 2010 · N523RL · Minor damage
  > Improper reassembly of the collective flight controls by maintenance personnel. Contributing to the incident were inadequate postmaintenance examinations by maintenance personnel and inadequate preflight inspections by two pilots.
- [NTSB CEN09FA012](https://openairdocs.org/ntsb/CEN09FA012.md): Bell 206 · Conroe, TX · Accident · 2 fatal · Field investigation · Final report · Oct 13, 2008 · N6ZV · Destroyed
  > A loss of control for undetermined reasons.

## 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.aircraft_model_code IN ('1182110')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '240' 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/240/sequence?model=1182110

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