# Fatal NTSB investigations: Allison 250 SER 400HP 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 ERA19WA176](https://openairdocs.org/ntsb/ERA19WA176.md): Bell 206 · La Vega, Dominican Republic · Accident · 2 fatal · Foreign investigation · May 21, 2019 · N9956K · Substantial damage - [NTSB ERA16FA144](https://openairdocs.org/ntsb/ERA16FA144.md): Bell 206 · Pigeon Forge, TN · Accident · 5 fatal · Field investigation · Final report · Apr 4, 2016 · N16760 · Destroyed > An inflight loss of engine power due to a failure of the engine fuel pump, which resulted in a collision with trees and terrain during the subsequent autorotation. The failure of the engine fuel pump resulted from the absence of adequate grease leading to… - [NTSB WPR15LA257](https://openairdocs.org/ntsb/WPR15LA257.md): Hughes 369HS · Manra Island, Kiribati · Accident · 1 fatal · Limited investigation · Final report · Sep 3, 2015 · N9068F · Destroyed > A The loss of helicopter control for reasons that could not be determined asbecause the helicopter sank in the oceanwater and was not recovered. - [NTSB ERA15FA178](https://openairdocs.org/ntsb/ERA15FA178.md): Hughes 369D · Cherokee, AL · Accident · 1 fatal · Field investigation · Final report · Apr 6, 2015 · N555JC · Substantial damage > The pilot's spatial disorientation during a low-level river crossing in rainy, gray, reduced visibility meteorological conditions, which resulted in the helicopter's subsequent descent and impact with the water. Contributing to the accident was the pilot's… - [NTSB ERA12MA005](https://openairdocs.org/ntsb/ERA12MA005.md): Bell 206B · New York, NY · Accident · 2 fatal · Major investigation · Final report · Oct 4, 2011 · N63Q · Substantial damage > The pilot's failure to anticipate and correct for conditions (high gross weight, low indicated airspeed, and a right downwind turn) conducive to loss of tail rotor effectiveness (LTE), which resulted in LTE and an uncontrolled spin. Contributing to the… - [NTSB CEN11FA053](https://openairdocs.org/ntsb/CEN11FA053.md): Bell 206 · Meeker, CO · Accident · 1 fatal · Field investigation · Final report · Nov 3, 2010 · N8533F · Substantial damage > The pilot's failure to maintain clearance from electrical power lines during the low-altitude flight. - [NTSB CEN10FA509](https://openairdocs.org/ntsb/CEN10FA509.md): Bell Helicopter Textron 206L-1 · Walnut Grove, AR · Accident · 3 fatal · Field investigation · Final report · Aug 31, 2010 · N62AE · Substantial damage > The pilot’s loss of aircraft control, due to spatial disorientation, resulting in the in-flight separation of the main rotor and tail boom. - [NTSB CEN10WA273](https://openairdocs.org/ntsb/CEN10WA273.md): Fairchild Hiller FH-1100 · Görkwitz, Germany · Accident · 4 fatal · Foreign investigation · May 23, 2010 · N8672 · Substantial damage - [NTSB LAX08FA233](https://openairdocs.org/ntsb/LAX08FA233.md): Hughes 369D · Price, UT · Accident · 3 fatal · Field investigation · Final report · Jul 19, 2008 · N400BE · Destroyed > The pilot's inadequate preflight performance planning for the takeoff and the loading that exceeded the lift performance capability of the helicopter. - [NTSB LAX04FA329](https://openairdocs.org/ntsb/LAX04FA329.md): Bell 206B · Kalaheo, HI · Accident · 5 fatal · Class 1 · Field · Final report · Sep 25, 2004 · N16849 · Destroyed > The pilot's decision to continue flight under visual flight rules into an area of turbulent, reduced visibility weather conditions, which resulted in the pilot's spatial disorientation and loss of control of the helicopter. Contributing to this accident was… - [NTSB FTW04FA168](https://openairdocs.org/ntsb/FTW04FA168.md): Bell 206-L1 · Vermillion Bay, LA · Accident · 3 fatal · Field investigation · Final report · Jun 24, 2004 · N5006F · Destroyed > The pilot's continued flight into adverse weather conditions resulting in a loss of control. Contributing factors were the prevailing thunderstorms and the pilot's inadequate in flight preparation and planning. - [NTSB LAX03FA241](https://openairdocs.org/ntsb/LAX03FA241.md): Bell 206B · Waialeale,Kauai, HI · Accident · 5 fatal · Field investigation · Final report · Jul 23, 2003 · N37741 · Destroyed > The pilot's failure to maintain adequate terrain clearance/altitude while descending over mountainous terrain, and his continued flight into adverse weather. Factors contributing to the accident were clouds and a low ceiling. - [NTSB ANC03LA015](https://openairdocs.org/ntsb/ANC03LA015.md): Bell 206B · Kingman, AZ · Accident · 1 fatal · Limited investigation · Final report · Nov 15, 2002 · N16962 · Substantial damage > The pilot's failure to maintain altitude/clearance from obstacles during cruise flight, which resulted in the helicopter striking a transmission line, and subsequently the ground. - [NTSB IAD01FA089](https://openairdocs.org/ntsb/IAD01FA089.md): Bell 206B · Baltimore, MD · Accident · 2 fatal · Field investigation · Final report · Aug 1, 2001 · N89FB · Destroyed > The pilot's improper decision to maneuver in an environment conducive to a loss of tail rotor effectiveness, and his inadequate recovery from the resultant unanticipated right yaw. - [NTSB FTW00RA039](https://openairdocs.org/ntsb/FTW00RA039.md): Bell 206-L1 · Cabinda, Angola · Accident · 1 fatal · Foreign investigation · Dec 1, 1999 · N5005B - [NTSB IAD98FA005](https://openairdocs.org/ntsb/IAD98FA005.md): Bell 206B · Sago, WV · Accident · 4 fatal · Field investigation · Final report · Oct 12, 1997 · N911RH · Destroyed > The improper overhaul of the turbine governor by the manufacturer, which resulted in the loss of power. - [NTSB IAD97FA032](https://openairdocs.org/ntsb/IAD97FA032.md): Mbb BO-105CBS · Penn Yan, NY · Accident · 3 fatal · Field investigation · Final report · Dec 13, 1996 · N90750 · Destroyed > the pilot's failure to maintain altitude/clearance from the terrain. Factors relating to the accident were: the pilot's diverted attention to the GPS, darkness, low ceiling, rising terrain, and high wind condition. - [NTSB LAX96FA076](https://openairdocs.org/ntsb/LAX96FA076.md): Hughes 369D · Feather Falls, CA · Accident · 1 fatal · Field investigation · Final report · Dec 20, 1995 · N8395F · Destroyed > the pilot's failure to jettison his external load after it came in contact with trees and terrain. The pilot's failure to maintain altitude/clearance above trees and hilly terrain was a related factor. - [NTSB CHI94GA038](https://openairdocs.org/ntsb/CHI94GA038.md): Hughes 369HS · Antonia, MO · Accident · 1 fatal · Final report · Nov 19, 1993 · N9179F · Substantial damage > The pilot's failure to maintain proper altitude. A factor was the dark night. - [NTSB ATL93FA127](https://openairdocs.org/ntsb/ATL93FA127.md): Hughes 369HS · Talladega, AL · Accident · 1 fatal · Field investigation · Final report · Jul 12, 1993 · N9116F · Substantial damage > The pilot's poor in-flight decision to land downwind in a confined area that was surrounded by high obstructions, and his failure to properly compensate for the tailwind condition. A factor related to the accident was: the pilot's lack of total experience in… - [NTSB SEA90LA081](https://openairdocs.org/ntsb/SEA90LA081.md): Hughes 369D · Kelso, WA · Accident · 1 fatal · Limited investigation · Final report · May 21, 1990 · N8306F · No damage > Failure of the pilot to keep the external load clear of obstacles (trees). Factors related to the accident were: failure of the pilot and ground crewman to follow safety procedures, and the proximity of the trees. - [NTSB NYC90FA029](https://openairdocs.org/ntsb/NYC90FA029.md): Hughes 369HS · North Adams, MA · Accident · 2 fatal · Field investigation · Final report · Nov 15, 1989 · N9208F · Destroyed > Failure of the pilot-in-command (PIC) to assure proper rotor RPM and proper operation of the flight controls during an approach in gusty wind conditions. A factor related to the accident was: the pic's lack of experience in the type of operation. - [NTSB LAX87LA161](https://openairdocs.org/ntsb/LAX87LA161.md): Bell 206B · Kona, HI · Accident · 1 fatal · Limited investigation · Final report · Mar 29, 1987 · N90153 · Destroyed > The pilot picked up two of the passengers at a resort hotel and then flew to kailua-Kona airport (koa). After hot refueling the helicopter with the two passengers on board, two more passengers boarded the helicopter and then the flight departed koa. When the… - [NTSB LAX86FJA02](https://openairdocs.org/ntsb/LAX86FJA02.md): Bell 206B · Pacific Ocean (Pacific Ocean) · Accident · 1 fatal · Final report · Jul 7, 1986 · N4835A · Destroyed > The plt was attempting to take off from the deck of a tuna boat when it contacted the side of the boat and sank in the Ocean. Post accident inspection revealed one of two nose tiedown straps had not been removed from the helicopter prior to the takeoff. The… - [NTSB NYC85FA245](https://openairdocs.org/ntsb/NYC85FA245.md): Bell 206B · Chalkhill, PA · Accident · 1 fatal · Field investigation · Final report · Sep 22, 1985 · N32TV · Destroyed > The helicopter was being used on an external load operation with a 100 ft cable attached. When a 618 lb load was ready to be moved, the plt started the eng, lifted off & moved the helicopter to a hover over the load. The loaders hooked the load to the cable &… - [NTSB ATL85FA170](https://openairdocs.org/ntsb/ATL85FA170.md): Bell 206L · Duluth, GA · Accident · 2 fatal · Field investigation · Final report · May 20, 1985 · N403DC · Destroyed > After loading a seriously burned patient in the helicopter, the plt started the eng & lifted off from the hospital parking lot. Immediately after lift-off, he started forward translational flt. About 65 ft from the lift-off point, an advancing main rotor… - [NTSB DEN83FA045](https://openairdocs.org/ntsb/DEN83FA045.md): Bell 206B III · Sula, MT · Accident · 1 fatal · Field investigation · Final report · Jan 6, 1983 · N55LW · Substantial damage > The helicopter crashed tail low and rolled over in an open field during marginal weather. The pilot was flying on an expired student certificate and expired medical. According to a pilot who had worked with him the pilot had no helicopter rating. Witnesses… - [NTSB LAX82DA140](https://openairdocs.org/ntsb/LAX82DA140.md): Hughes 369HS · 8 S. Of Page, AZ · Accident · 3 fatal · Final report · Apr 18, 1982 · N4EE · Destroyed > The aircraft was number two in a trail of three helicopters flying up the Colorado river at marble canyon to page, AZ when it struck an aerial cableway stretching across the river, 22 ft above the water. Witnesses stated that after the collision the… - [NTSB FTW82DA075](https://openairdocs.org/ntsb/FTW82DA075.md): Bell 206B · High Island Blk · Accident · 2 fatal · Final report · Mar 2, 1982 · N63AL · Destroyed > The aircraft was low on the approach and during the flare, the vertical fin and tail boom contacted the safety netting extending beyond the boundaries of the platform landing area. The aircraft then settled back off the platform with one main rotor blade… - [NTSB FTW81DA014](https://openairdocs.org/ntsb/FTW81DA014.md): Bell 206B3 · Cameron, LA · Accident · 1 fatal · Closed · Dec 2, 1980 · N5003Q · Destroyed - [NTSB LAX80FA136](https://openairdocs.org/ntsb/LAX80FA136.md): Hughes 369HS · Las Vegas, NV · Accident · 1 fatal · Closed · Aug 26, 1980 · N9144F · Substantial damage - [NTSB MIA80DA059](https://openairdocs.org/ntsb/MIA80DA059.md): Bell 206B · Malabar, FL · Accident · 1 fatal · Closed · May 3, 1980 · N5004U · No damage - [NTSB FTW78FA066](https://openairdocs.org/ntsb/FTW78FA066.md): Bolkow BO-105 · Cameron, LA · Accident · 1 fatal · Closed · Aug 13, 1978 · N17235 · Destroyed - [NTSB FTW78FA025](https://openairdocs.org/ntsb/FTW78FA025.md): Bell 206B · Palacids, TX · Accident · 1 fatal · Closed · Jan 25, 1978 · N90024 · Destroyed - [NTSB FTW77FA044](https://openairdocs.org/ntsb/FTW77FA044.md): Bell 206B · Intracoastal C, LA · Accident · 1 fatal · Closed · Mar 17, 1977 · N90071 · Destroyed - [NTSB ANC76AA123](https://openairdocs.org/ntsb/ANC76AA123.md): Hiller Acft UH12EJ · Sheep Mountain, AK · Accident · 1 fatal · Closed · Aug 15, 1976 · N47078 · Destroyed - [NTSB OAK76AP060](https://openairdocs.org/ntsb/OAK76AP060.md): Bell 206B · Carson City, NV · Accident · 3 fatal · Closed · Jul 5, 1976 · N600SW · Substantial damage - [NTSB OAK76AP057](https://openairdocs.org/ntsb/OAK76AP057.md): Bell 206B · Bishop, CA · Accident · 2 fatal · Closed · Jun 22, 1976 · N7941S · Destroyed ## 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 ('03013', '03012')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=03013&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.