# NTSB investigations: Bell 412 A list on [Bell 412](https://openairdocs.org/model/bell-412.md). Matched to the registry by N-number and event date, newest first. - [NTSB GAA15CA230](https://openairdocs.org/ntsb/GAA15CA230.md): Bell 412 · Whittier, CA · Accident · Minor injuries · Data collection · Final report · Aug 17, 2015 · N412LA · Substantial damage > The pilot's failure to appropriately monitor the helicopter's fuel supply, resulting in fuel exhaustion, loss of engine power, and an autorotation with a hard landing. - [NTSB LAX07FA056](https://openairdocs.org/ntsb/LAX07FA056.md): Bell 412SP · Hesperia, CA · Accident · 3 fatal · Field investigation · Final report · Dec 11, 2006 · N410MA · Destroyed > The pilot's inadvertent encounter with instrument meteorological conditions and subsequent failure to maintain terrain clearance. Contributing to the accident were the dark night conditions, fog, and mountainous terrain. - [NTSB FTW04IA217](https://openairdocs.org/ntsb/FTW04IA217.md): Bell 412 · South Pass 65 · Incident · No injuries · Incident investigation · Final report · Aug 19, 2004 · N22347 · Minor damage > The failure and separation of the tail rotor gearbox for undetermined reasons. - [NTSB FTW04LA133](https://openairdocs.org/ntsb/FTW04LA133.md): Bell 412 · San Antonio, TX · Accident · No injuries · Limited investigation · Final report · May 23, 2004 · N555BA · Substantial damage > The pilot's failure to maintain clearance with the parked helicopter while performing a hovering turn. - [NTSB CHI02LA232](https://openairdocs.org/ntsb/CHI02LA232.md): Bell 412 · Rantoul, IL · Accident · 1 fatal · Limited investigation · Final report · Aug 3, 2002 · N464AC · Minor damage > The congested takeoff and landing area and the low altitude flight maneuver performed by the pilot. - [NTSB DEN01FA058](https://openairdocs.org/ntsb/DEN01FA058.md): Bell 412SP · Grand Junction, CO · Accident · 1 fatal · Field investigation · Final report · Feb 28, 2001 · N412SM · Destroyed > the pilot's failure to maintain rotor speed during an intentional autorotation, which resulted in a loss of control. - [NTSB LAX00GA297](https://openairdocs.org/ntsb/LAX00GA297.md): Bell 412 · Cold Springs, NV · Accident · 1 fatal · Final report · Aug 13, 2000 · N174EH · Destroyed > failure of the compressor turbine disc due to cyclic fatigue brought about by repeated operation near or above the engines' temperature/power limits by company personnel over an extended period of time. Factors in the accident were: 1) the high density… - [NTSB FTW99LA162](https://openairdocs.org/ntsb/FTW99LA162.md): Bell 412 · Eugene Is. 313 · Accident · No injuries · Limited investigation · Final report · Jun 9, 1999 · N3893S · Substantial damage > The separation of a section of the tail rotor blade, and subsequent separation of the tail rotor system, as a result of fatigue cracking due to corrosion in the tail rotor blade spar. - [NTSB BFO94FA071](https://openairdocs.org/ntsb/BFO94FA071.md): Bell 412/SP · Bluefield, VA · Accident · 4 fatal · Field investigation · Final report · Apr 22, 1994 · N70AM · Destroyed > The pilot's failure to intercept the final approach course, and his improper execution of the instrument approach procedure. Factors which contributed to the accident were: the weather conditions, and the failure of the air traffic controller to adequately… - [NTSB FTW94LA043](https://openairdocs.org/ntsb/FTW94LA043.md): Bell 412 · Cameron, LA · Accident · Minor injuries · Limited investigation · Final report · Dec 3, 1993 · N356EH · Destroyed > The copilot's continued flight into adverse weather conditions, and the captain's inadequate supervision. The haze and fog were factors. - [NTSB LAX93T#A02](https://openairdocs.org/ntsb/LAX93T%23A02.md): Bell 412 · Topanga, CA · Accident · No injuries · Class 3 · Final report · Mar 31, 1993 · N412LA · No damage - [NTSB FTW91FA155](https://openairdocs.org/ntsb/FTW91FA155.md): Bell 412 · Garden Banks · Accident · 1 fatal · Field investigation · Final report · Aug 26, 1991 · N3909F · Substantial damage > Overheating and subsequent failure of the number one tail rotor hanger bearing for an undeterined reason, and failure of the tail rotor drive shaft. - [NTSB FTW91IA143](https://openairdocs.org/ntsb/FTW91IA143.md): Bell 412 · Rowan Midland · Incident · No injuries · Incident investigation · Final report · Aug 8, 1991 · N177EH · No damage > The mechanic's failure to assemble the tail rotor drive shaft correctly and the subsequent failure of the tail rotor drive shaft. A factor was the lack of inspection procedures for offshore maintenance. - [NTSB DCA91MA031](https://openairdocs.org/ntsb/DCA91MA031.md): Bell 412SP · Merion, PA · Accident · 7 fatal · Class 1 · Major · Final report · Apr 4, 1991 · N78S · 2 aircraft · Destroyed > The poor judgement by the captain of the airplane to permit the in-flight inspection after he had determined to the best of his ability that the nose landing gear was fully extended, the poor judgment of the captain of the helicopter to conduct the… - [NTSB ANC89FA069](https://openairdocs.org/ntsb/ANC89FA069.md): Bell 412 · Girdwood, AK · Accident · Minor injuries · Field investigation · Final report · May 6, 1989 · N524EH · Destroyed > A main rotor flight control bolt (part number 20-057-6-38D) came out of its rod end bearing while in flight due to the bolt being improperly torqued during maintenance. - [NTSB FTW88FA036](https://openairdocs.org/ntsb/FTW88FA036.md): Bell 412 · Galveston, TX · Accident · Serious injuries · Field investigation · Final report · Dec 7, 1987 · N3910U · Destroyed > The acft landed hard in the gulf of Mexico during an autorotation that was entered following the separation of the 90 degree gearbox. The gearbox (with tail rotor blades) separated due to an imbalance. However, the gearbox was not recovered during the… - [NTSB FTW83IA053](https://openairdocs.org/ntsb/FTW83IA053.md): Bell 412 · Intercoastal Ci, LA · Incident · No injuries · Incident investigation · Final report · Dec 2, 1982 · N2258F · No damage > While in cruise flight, the pilots heard a loud pop and felt a severe cyclic control vibration. An immediate precautionary landing was made. An examination revealed that there was a fatigue crack in the trailing edge of the blue, main rotor yoke flexure, pn… ## 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_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = a.case_mkey WHERE a.aircraft_model_code IN ('1182202') ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/model/bell-412/ntsb --- 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.