# NTSB investigations: Bell 206B: Off-field or emergency landing

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 WPR24LA067](https://openairdocs.org/ntsb/WPR24LA067.md): Bell 206B · El Centro, CA · Accident · No injuries · Class 3 · Limited · Final report · Dec 24, 2023 · N111PM · Substantial damage
  > An in-flight failure of the engine-to-transmission driveshaft due to a fatigue fracture of the forward-most flex plate in the forward KAflex coupling that resulted from a loose bolt attachment between the flex plate and the forward driveshaft coupling.…
- [NTSB CEN23LA025](https://openairdocs.org/ntsb/CEN23LA025.md): Bell 206 · Greenville, IL · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 3, 2022 · N61KH · Substantial damage
  > The mechanic’s failure to inspect and clean the entire fuel nozzle assembly in accordance with the engine maintenance manual, which resulted in fuel starvation and a partial loss of engine power, an autorotation, and a hard landing.
- [NTSB CEN22LA009](https://openairdocs.org/ntsb/CEN22LA009.md): Bell 206 · Gonzales, LA · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 6, 2021 · N373SP · Substantial damage
  > The student pilot’s failure to compensate for an unanticipated right yaw, which resulted in a loss of tail rotor effectiveness and helicopter control.
- [NTSB WPR18LA029](https://openairdocs.org/ntsb/WPR18LA029.md): Bell 206 · Rolling Fork, MS · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 7, 2017 · N93PH · Substantial damage
  > An uncommanded yaw and subsequent loss of main rotor rpm for reasons that could not be determined.
- [NTSB GAA17CA393](https://openairdocs.org/ntsb/GAA17CA393.md): Bell 206 · Dixon, KY · Accident · No injuries · Data collection · Final report · Jul 6, 2017 · N8159J · Substantial damage
  > The pilot’s failure to see and avoid power lines while maneuvering at a low altitude. Contributing to the accident was the pilot’s failure to adequately identify hazards to flight during agricultural application operation planning.
- [NTSB GAA17CA369](https://openairdocs.org/ntsb/GAA17CA369.md): Bell 206B · Entiat, WA · Accident · No injuries · Data collection · Final report · Jun 26, 2017 · N183TC · Substantial damage
  > The pilot’s failure to secure a loose item inside the cockpit that interfered with antitorque pedal control and led to a loss of helicopter control due to a loss of tail rotor effectiveness.
- [NTSB WPR17LA113](https://openairdocs.org/ntsb/WPR17LA113.md): Bell 206B · Rockville, ID · Accident · Serious injuries · Limited investigation · Final report · May 26, 2017 · N24FS · Substantial damage
  > The in-flight failure of the engine-to-transmission drive shaft due to a fatigue fracture of one of the KAflex flex frames caused by a loose bolt, which resulted in a total loss of engine power and a subsequent hard landing.
- [NTSB WPR17LA071](https://openairdocs.org/ntsb/WPR17LA071.md): Bell 206B · Firebaugh, CA · Accident · No injuries · Limited investigation · Final report · Mar 1, 2017 · N211CS · Substantial damage
  > A total loss of engine power due to fuel exhaustion. Contributing to the accident was the improper calibration of the fuel quantity gauge, which led the pilot to believe that there was adequate fuel onboard.
- [NTSB GAA15LA296](https://openairdocs.org/ntsb/GAA15LA296.md): Bell 206 · Ozark, AL · Accident · No injuries · Limited investigation · Final report · Sep 24, 2015 · N49660 · Substantial damage
  > The pilot's failure to maintain clearance from terrain while hovering, which resulted in the helicopter's skid impacting terrain, subsequent abnormal airframe vibrations, and a hard landing during the subsequent hovering autorotation.
- [NTSB CEN15LA423](https://openairdocs.org/ntsb/CEN15LA423.md): Bell 206B · Woodville, TX · Accident · Serious injuries · Limited investigation · Final report · Sep 24, 2015 · N648CA · Substantial damage
  > The loss of engine power due to water contamination in the fuel system. Contributing to the accident were the pilot’s inadequate preflight inspection of the fuel tanks and the operator’s inadequate inspection of the fuel supply truck that did not detect water…
- [NTSB ERA15LA179](https://openairdocs.org/ntsb/ERA15LA179.md): Bell 206B · Taylors Island, MD · Accident · No injuries · Limited investigation · Final report · Mar 24, 2015 · N43CM · Substantial damage
  > A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB ANC15CA012](https://openairdocs.org/ntsb/ANC15CA012.md): Bell 206B · Palmer, AK · Accident · No injuries · Data collection · Final report · Mar 10, 2015 · N86TA · Substantial damage
  > The pilot's failure to maintain control while hovering at a low altitude, which resulted in an impact with frozen lake ice. Contributing to the accident was the pilot's decision to operate the helicopter from the left seat contrary to the rotorcraft flight…
- [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 CEN13LA378](https://openairdocs.org/ntsb/CEN13LA378.md): Bell 206B · St Louis, MO · Accident · No injuries · Limited investigation · Final report · May 24, 2013 · N297CA · Substantial damage
  > The loss of engine power due to the separation of compressor blades, which resulted from fatigue cracking.
- [NTSB WPR13CA204](https://openairdocs.org/ntsb/WPR13CA204.md): Bell 206B · Wells, NV · Accident · No injuries · Data collection · Final report · Apr 20, 2013 · N4237M · Substantial damage
  > The pilot's failure to maintain clearance from an obstacle while maneuvering at a low altitude.
- [NTSB ERA12LA366](https://openairdocs.org/ntsb/ERA12LA366.md): Bell 206B · Longboat Key, FL · Accident · No injuries · Limited investigation · Final report · May 25, 2012 · N806LA · Substantial damage
  > Unknown personnel's failure to comply with the engine manufacturer's engine fuel pump replacement guidance, which resulted in a total loss of engine power due to the engine fuel pump failure.
- [NTSB CEN11CA509](https://openairdocs.org/ntsb/CEN11CA509.md): Bell 206B · Temple, OK · Accident · No injuries · Data collection · Final report · Jul 23, 2011 · N118TV · Substantial damage
  > The pilot’s failure to maintain clearance from static power lines.
- [NTSB WPR11LA016](https://openairdocs.org/ntsb/WPR11LA016.md): Bell 206B · Auburn, CA · Accident · No injuries · Limited investigation · Final report · Oct 14, 2010 · N2763M · Substantial damage
  > The pilot's failure to maintain clearance from a transmission line during flight.
- [NTSB CEN10CA428](https://openairdocs.org/ntsb/CEN10CA428.md): Bell 206B · New Hampton, IA · Accident · No injuries · Data collection · Final report · Jul 23, 2010 · N40TA · Substantial damage
  > The pilot's failure to maintain clearance from wires.
- [NTSB ERA10LA032](https://openairdocs.org/ntsb/ERA10LA032.md): Bell 206 · Eupora, MS · Accident · Serious injuries · Limited investigation · Final report · Oct 25, 2009 · N57PH · Destroyed
  > A loss of engine power due to fuel contamination of the helicopter’s fuel supply.
- [NTSB ERA09LA047](https://openairdocs.org/ntsb/ERA09LA047.md): Bell 206B · Boynton Beach, FL · Accident · Minor injuries · Limited investigation · Final report · Nov 11, 2008 · N281CB · Substantial damage
  > A loss of engine power due to an undertorqued air line fitting to the fuel control.

## 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 ('1181511')
    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" = '440' 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/440/sequence?model=1181511

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