Fatal NTSB investigations: Allison 250 SER 400HP
38 cases on aircraft whose registry engine model is Allison 250 SER 400HP. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1976 | 3 |
|---|---|
| 1977 | 1 |
| 1978 | 2 |
| 1980 | 3 |
| 1982 | 2 |
| 1983 | 1 |
| 1985 | 2 |
| 1986 | 1 |
| 1987 | 1 |
| 1989 | 1 |
| 1990 | 1 |
| 1993 | 2 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1999 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 2 |
| 2008 | 1 |
| 2010 | 3 |
| 2011 | 1 |
| 2015 | 2 |
| 2016 | 1 |
| 2019 | 1 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB ERA19WA176Accident · 2 fatalForeign investigationBell 206 · La Vega, Dominican RepublicNTSB ERA16FA144Accident · 5 fatalField investigationFinal reportBell 206 · Pigeon Forge, TNAn 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 WPR15LA257Accident · 1 fatalLimited investigationFinal reportHughes 369HS · Manra Island, KiribatiA The loss of helicopter control for reasons that could not be determined asbecause the helicopter sank in the oceanwater and was not recovered.NTSB ERA15FA178Accident · 1 fatalField investigationFinal reportHughes 369D · Cherokee, ALThe 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 ERA12MA005Accident · 2 fatalMajor investigationFinal reportBell 206B · New York, NYThe 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 CEN11FA053Accident · 1 fatalField investigationFinal reportBell 206 · Meeker, COThe pilot's failure to maintain clearance from electrical power lines during the low-altitude flight.NTSB CEN10FA509Accident · 3 fatalField investigationFinal reportBell Helicopter Textron 206L-1 · Walnut Grove, ARThe pilot’s loss of aircraft control, due to spatial disorientation, resulting in the in-flight separation of the main rotor and tail boom.NTSB CEN10WA273Accident · 4 fatalForeign investigationFairchild Hiller FH-1100 · Görkwitz, GermanyNTSB LAX08FA233Accident · 3 fatalField investigationFinal reportHughes 369D · Price, UTThe pilot's inadequate preflight performance planning for the takeoff and the loading that exceeded the lift performance capability of the helicopter.NTSB LAX04FA329Accident · 5 fatalClass 1 · FieldFinal reportBell 206B · Kalaheo, HIThe 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 FTW04FA168Accident · 3 fatalField investigationFinal reportBell 206-L1 · Vermillion Bay, LAThe 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 LAX03FA241Accident · 5 fatalField investigationFinal reportBell 206B · Waialeale,Kauai, HIThe 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 ANC03LA015Accident · 1 fatalLimited investigationFinal reportBell 206B · Kingman, AZThe 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 IAD01FA089Accident · 2 fatalField investigationFinal reportBell 206B · Baltimore, MDThe 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 FTW00RA039Accident · 1 fatalForeign investigationBell 206-L1 · Cabinda, AngolaNTSB IAD98FA005Accident · 4 fatalField investigationFinal reportBell 206B · Sago, WVThe improper overhaul of the turbine governor by the manufacturer, which resulted in the loss of power.NTSB IAD97FA032Accident · 3 fatalField investigationFinal reportMbb BO-105CBS · Penn Yan, NYthe 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 LAX96FA076Accident · 1 fatalField investigationFinal reportHughes 369D · Feather Falls, CAthe 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 CHI94GA038Accident · 1 fatalFinal reportHughes 369HS · Antonia, MOThe pilot's failure to maintain proper altitude. A factor was the dark night.NTSB ATL93FA127Accident · 1 fatalField investigationFinal reportHughes 369HS · Talladega, ALThe 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 SEA90LA081Accident · 1 fatalLimited investigationFinal reportHughes 369D · Kelso, WAFailure 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 NYC90FA029Accident · 2 fatalField investigationFinal reportHughes 369HS · North Adams, MAFailure 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 LAX87LA161Accident · 1 fatalLimited investigationFinal reportBell 206B · Kona, HIThe 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 LAX86FJA02Accident · 1 fatalFinal reportBell 206B · Pacific Ocean (Pacific Ocean)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 NYC85FA245Accident · 1 fatalField investigationFinal reportBell 206B · Chalkhill, PAThe 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 ATL85FA170Accident · 2 fatalField investigationFinal reportBell 206L · Duluth, GAAfter 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 DEN83FA045Accident · 1 fatalField investigationFinal reportBell 206B III · Sula, MTThe 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 LAX82DA140Accident · 3 fatalFinal reportHughes 369HS · 8 S. Of Page, AZThe 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 FTW82DA075Accident · 2 fatalFinal reportBell 206B · High Island BlkThe 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 FTW81DA014Accident · 1 fatalClosedBell 206B3 · Cameron, LANTSB LAX80FA136Accident · 1 fatalClosedHughes 369HS · Las Vegas, NVNTSB MIA80DA059Accident · 1 fatalClosedBell 206B · Malabar, FLNTSB FTW78FA066Accident · 1 fatalClosedBolkow BO-105 · Cameron, LANTSB FTW78FA025Accident · 1 fatalClosedBell 206B · Palacids, TXNTSB FTW77FA044Accident · 1 fatalClosedBell 206B · Intracoastal C, LANTSB ANC76AA123Accident · 1 fatalClosedHiller Acft UH12EJ · Sheep Mountain, AKNTSB OAK76AP060Accident · 3 fatalClosedBell 206B · Carson City, NVNTSB OAK76AP057Accident · 2 fatalClosedBell 206B · Bishop, CA