# NTSB investigations: Rolls-Royce 250 20&30 series 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 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 WPR24FA132](https://openairdocs.org/ntsb/WPR24FA132.md): Bell 206-L4 · Anaconda, MT · Accident · 1 fatal · Class 3 · Field · Final report · Apr 26, 2024 · N988B · Destroyed > A total loss of engine power due to a loss of cooling oil to the turbine-to-compressor coupling shaft and subsequent fracture of the shaft at an altitude too low for the pilot to complete a successful autorotation. Contributing to the accident was carbon… - [NTSB ERA21LA275](https://openairdocs.org/ntsb/ERA21LA275.md): Bell 206 · Rome, NY · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 29, 2021 · N134VG · Substantial damage > The pilot's improper termination of a practice autorotation with power recovery, which resulted in low rotor rpm, an unstable landing, and a rollover. Contributing to the accident was the evaluator's inadequate oversight. - [NTSB WPR18LA214](https://openairdocs.org/ntsb/WPR18LA214.md): Bell 206 · Basin City, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 7, 2018 · N607RA · Destroyed > The pilot's improper execution of a slowing and turning maneuver, which resulted in a loss of control at an altitude that was too low for recovery. - [NTSB ERA18LA192](https://openairdocs.org/ntsb/ERA18LA192.md): Schweizer 269D · Stewartstown, PA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 14, 2018 · N411HU · Substantial damage > The pilot's inability to maintain yaw control while transitioning to an out of ground effect hover due to a loss of tail rotor effectiveness. - [NTSB GAA16CA439](https://openairdocs.org/ntsb/GAA16CA439.md): Bell 206 L4 · Broussard, LA · Accident · No injuries · Data collection · Final report · Aug 18, 2016 · N7898X · Substantial damage > The pilot's failure to attain a proper touchdown point, which resulted in the helicopter sliding off the aft end of the transport dolly. - [NTSB WPR15FA072](https://openairdocs.org/ntsb/WPR15FA072.md): Bell 206 · Benson, AZ · Accident · 2 fatal · Field investigation · Final report · Jan 1, 2015 · N57AW · Destroyed > The pilot’s continued visual flight into instrument meteorological conditions which resulted in an inflight collision with terrain. Contributing to the accident was the pilot’s inadequate preflight planning, during which he failed to identify forecasted… - [NTSB WPR14LA374](https://openairdocs.org/ntsb/WPR14LA374.md): Bell 206 · Tombstone, AZ · Accident · No injuries · Limited investigation · Final report · Sep 12, 2014 · N64AW · Substantial damage > A partial loss of engine power during cruise flight due to loose “B” nut fittings and a bent tube as a result of maintenance personnel’s inadequate inspection of the nuts during the most recent inspection. - [NTSB WPR14LA008](https://openairdocs.org/ntsb/WPR14LA008.md): Mcdonnell Douglas Heli 369 · Paducah, TX · Accident · 1 fatal · Limited investigation · Final report · Oct 6, 2013 · N530KF · Substantial damage > The pilot’s failure to maintain clearance from a power transmission line tower while maneuvering to pick up a rope in gusting wind conditions. - [NTSB ERA13GA046](https://openairdocs.org/ntsb/ERA13GA046.md): Hughes OH-6A · Atlanta, GA · Accident · 2 fatal · Final report · Nov 4, 2012 · N368PD · Substantial damage > The pilot's failure to maintain sufficient altitude during maneuvering flight, which resulted in his failure to see and avoid a power pole and wires. - [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 WPR09LA226](https://openairdocs.org/ntsb/WPR09LA226.md): MD Helicopter 369FF · Santa Clarita, CA · Accident · No injuries · Limited investigation · Final report · May 1, 2009 · N67FF · Substantial damage > The pilot's failure to maintain clearance from the water while maneuvering at low altitude as a result of the helicopter's grappling hook temporarily becoming ensnared with an underwater obstruction. - [NTSB CEN09LA198](https://openairdocs.org/ntsb/CEN09LA198.md): Bell 206 · Galliano, LA · Accident · No injuries · Limited investigation · Final report · Mar 2, 2009 · N410RL · Substantial damage > The failure of the tail rotor driveshaft and coupling during engine start due to the mechanic's failure to properly reattach the tail rotor driveshaft and coupling during maintenance. - [NTSB NYC70D0121](https://openairdocs.org/ntsb/NYC70D0121.md): Bell 206A · Banksville, NY · Accident · No injuries · Closed · Aug 1, 1969 · N1431W · Substantial damage ## 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 ('54584')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=54584 --- 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.