# Fatal NTSB investigations: Allison 250-C28 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 CEN25FA281](https://openairdocs.org/ntsb/CEN25FA281.md): Bell Helicopter Textron 206L-1 · Thibodaux, LA · Accident · 1 fatal · Class 3 · Field · Final report · Jul 23, 2025 · N2611 · Destroyed > The pilot’s failure to maintain clearance to powerlines during an agricultural application pass. - [NTSB ERA13FA273](https://openairdocs.org/ntsb/ERA13FA273.md): Bell Helicopter Textron 206L-1 · Manchester, KY · Accident · 3 fatal · Field investigation · Final report · Jun 7, 2013 · N114AE · Destroyed > The pilot’s loss of helicopter control due to spatial disorientation when he inadvertently encountered night, instrument meteorological conditions, which resulted in the in-flight separation of the main rotor and tailboom. - [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. - [NTSB DFW08FA053](https://openairdocs.org/ntsb/DFW08FA053.md): Bell 206L1 · Venice, LA · Accident · 1 fatal · Field investigation · Final report · Dec 29, 2007 · N211EL · Destroyed > The pilot’s decision to continue to the destination landing platform in weather conditions below the company’s weather minimums and his failure to maintain aircraft control during the approach. Contributing to the passenger fatality and the severity of the… - [NTSB CHI06FA110](https://openairdocs.org/ntsb/CHI06FA110.md): Messerschmitt-Bolkow-Blohm BO 105LS A-3 · Green Bay, WI · Accident · 1 fatal · Field investigation · Final report · Apr 13, 2006 · N202LF · Substantial damage > The pilot's inadequate preflight check of the flight controls prior to takeoff and the directional contol not possible by the pilot. Additional causes were the improper installation of the anti-torque pedal cover by company personnel which blocked the flight… - [NTSB LAX04FA076](https://openairdocs.org/ntsb/LAX04FA076.md): Agusta A109A · Redwood Valley, CA · Accident · 3 fatal · Field investigation · Final report · Dec 24, 2003 · N25RX · Destroyed > The pilot's improper in-flight planning and decision to continue flight under visual flight rules into deteriorating weather conditions, which resulted in an inadvertent in-flight encounter with instrument meteorological conditions and a collision with rising… - [NTSB CHI03FA056](https://openairdocs.org/ntsb/CHI03FA056.md): Bell 206L-1 · B.S. 53, LA · Accident · 1 fatal · Field investigation · Final report · Jan 16, 2003 · N3194P · Destroyed > The improper approach by the pilot and the settling with power encountered by the pilot. - [NTSB CHI02FA288](https://openairdocs.org/ntsb/CHI02FA288.md): Bell 206L-1 · Doland, SD · Accident · 4 fatal · Field investigation · Final report · Sep 10, 2002 · N400SL · Destroyed > Pilot spatial disorientation while flying in dark night conditions, resulting in a loss of aircraft control; and the company's inadequate remedial actions after identifying the pilot's night flying deficiency over areas without lighted references. A factor to… - [NTSB ATL02FA048](https://openairdocs.org/ntsb/ATL02FA048.md): Bell 206L-1 · New Smyrna Bch., FL · Accident · 2 fatal · Field investigation · Final report · Feb 16, 2002 · N23PJ · Destroyed > The pilot continued visual flight into instrument conditions that resulted in the in-flight collision with trees. Factor were the pilot's alcohol impaired condition, and low cloud conditions. - [NTSB FTW97RA323](https://openairdocs.org/ntsb/FTW97RA323.md): Bell 206L-1 · Arica, Peru · Accident · 3 fatal · Foreign investigation · Aug 21, 1997 · N2246Q - [NTSB BFO94FA013](https://openairdocs.org/ntsb/BFO94FA013.md): Bell 206L-1 · Portland, ME · Accident · 3 fatal · Field investigation · Final report · Nov 20, 1993 · N911ME · Destroyed > The pilot's continued VFR flight into instrument meteorological conditions, and his failure to assure that adequate fuel was available to complete the flight, resulting in a loss of engine power due to fuel exhaustion. Factors which contributed to the… - [NTSB SEA87MA034](https://openairdocs.org/ntsb/SEA87MA034.md): Bell 206L-1 · Pendleton, OR · Accident · 3 fatal · Major investigation · Final report · Dec 4, 1986 · N7EC · Destroyed > The helicopter departed Pendleton on an emerg med svc/med-evac (EMS) flt to transport a patient to portland. After delivering the patient, the plt took off on the rtn flt with 2 med psnl aboard. Drg arrival at 1658 PST, he requested a special VFR (svfr)… - [NTSB LAX83FA420](https://openairdocs.org/ntsb/LAX83FA420.md): Hughes 369HS · Ventura, CA · Accident · 1 fatal · Field investigation · Final report · Sep 4, 1983 · N8500N · Destroyed > The helicopter was observed descending 'straight down' & 'nose first.' The wreckage was located about 200 yds offshore in about 30 ft of water. Witnesses stated that it was dark & hazy. They were able to see the acft lights, but not the stars. The plt did not… ## 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."highestInjuryLevel" = 'Fatal' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03022', '03021')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=03022&fatal=1 --- 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.