# NTSB investigations: Allison 250-C20 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. Page 8 of 8 · 372 cases ## Cases, newest first - [NTSB FTW84LA270](https://openairdocs.org/ntsb/FTW84LA270.md): Bell 206B · South Pelto · Accident · Minor injuries · Limited investigation · Final report · Jun 8, 1984 · N2276Q · Substantial damage > While cruising at 550 ft above the gulf of Mexico, the plt noted hi tot indications, followed by loss of N1 RPM & eng failure. An autorotation was initiated which terminated in a hard landing in 5 ft waves. One emergency float separated during the landing &… - [NTSB LAX83FA400](https://openairdocs.org/ntsb/LAX83FA400.md): Bell 206-B · Battle Mountain, NV · Accident · Minor injuries · Field investigation · Final report · Aug 22, 1983 · N17355 · Destroyed > The helicopter lost power during takeoff,touched down on the left skid,bounced and rolled over. The flt had originated at 1315 at a local field and proceeded to pick up a passenger at another location. The acft had just landed, picked up the passenger and was… - [NTSB ANC83FA144](https://openairdocs.org/ntsb/ANC83FA144.md): Bell 206L-1 · Bettles, AK · Accident · No injuries · Field investigation · Final report · Aug 13, 1983 · N1081K · Substantial damage > According to the plt, the low fuel warning light illuminated when the fuel gage was indicating 200 lbs. He reported he could see the arpt lights & elected to continue the flt. After arriving, he terminated his apch to a 30 to 50 ft hover with no forward… - [NTSB NYC82FA230](https://openairdocs.org/ntsb/NYC82FA230.md): Bell 222 · New York, NY · Accident · 1 fatal · Field investigation · Final report · Sep 22, 1982 · N2772H · Minor damage > The helicopter (hel) was being loaded with the engines running. The flt crew were at the ctls when the acdnt occurred. Initially, 4 paxs were escorted to the hel by a customer svc agent. As the 4 boarded, the agent retrieved their carry on baggage. Aft they… - [NTSB ANC82DA062](https://openairdocs.org/ntsb/ANC82DA062.md): Hughes 369D · Near Bornite, AK · Accident · 1 fatal · Final report · Jul 28, 1982 · N820Y · Destroyed > Two workers were transported to a mine drilling site where the helicopter was landed on a man-made heli-pad. The heli-pad was an area about 50 ft long and 12 ft wide that had been cut into the side of a rocky hill. After off-loading the workers, the pilot… - [NTSB FTW82DA028](https://openairdocs.org/ntsb/FTW82DA028.md): Bell 206B · Gulf Of Mexico (Atlantic Ocean) · Accident · No injuries · Closed · Dec 3, 1981 · N5006Y · Substantial damage - [NTSB LAX82DXQ02](https://openairdocs.org/ntsb/LAX82DXQ02.md): Bell 206B · Ely, NV · Accident · No injuries · Closed · Nov 17, 1981 · N3893Y · Substantial damage - [NTSB DEN81FA062](https://openairdocs.org/ntsb/DEN81FA062.md): Hughes 369D · Afton, WY · Accident · Minor injuries · Closed · Aug 27, 1981 · N58256 · Substantial damage - [NTSB ANC81FA064](https://openairdocs.org/ntsb/ANC81FA064.md): Hughes 369D · Tanacross, AK · Accident · Minor injuries · Closed · Jun 19, 1981 · N11035 · Substantial damage - [NTSB DEN81FA022](https://openairdocs.org/ntsb/DEN81FA022.md): Bell 206A · Evanston, WY · Accident · No injuries · Closed · Mar 16, 1981 · N7881S · Substantial damage - [NTSB CHI80DEM44](https://openairdocs.org/ntsb/CHI80DEM44.md): Hughes 500D · Manistee, MI · Accident · No injuries · Closed · Aug 29, 1980 · N500NC · Substantial damage - [NTSB FTW80FA081](https://openairdocs.org/ntsb/FTW80FA081.md): Bell 206B · Intercstl City, LA · Accident · No injuries · Closed · Jun 1, 1980 · N59541 · Substantial damage - [NTSB SEA80FYM12](https://openairdocs.org/ntsb/SEA80FYM12.md): Hiller Acft UH-12E · Willamina, OR · Accident · No injuries · Closed · Jan 17, 1980 · N545HA · Substantial damage - [NTSB FTW80FRD08](https://openairdocs.org/ntsb/FTW80FRD08.md): Hughes 369D · Abbeville, LA · Accident · No injuries · Closed · Oct 11, 1979 · N58240 · Substantial damage - [NTSB SEA79FYK05](https://openairdocs.org/ntsb/SEA79FYK05.md): Hiller Acft UH-12E · Springfield, OR · Accident · No injuries · Closed · Feb 23, 1979 · N545HA · Substantial damage - [NTSB OAK79DVG13](https://openairdocs.org/ntsb/OAK79DVG13.md): Hughes 369C · Montague, CA · Accident · No injuries · Closed · Feb 16, 1979 · N8696F · Substantial damage - [NTSB SEA78FYE11](https://openairdocs.org/ntsb/SEA78FYE11.md): Hiller Acft UH-12E · Montesano, WA · Accident · No injuries · Closed · Mar 6, 1978 · N100LM · Substantial damage - [NTSB MIA76FKT32](https://openairdocs.org/ntsb/MIA76FKT32.md): Bell 206B · Delray Beach, FL · Accident · Serious injuries · Closed · Nov 26, 1975 · N750LT · Destroyed - [NTSB ANC76AA024](https://openairdocs.org/ntsb/ANC76AA024.md): Hughes 369HS · Nome, AK · Accident · No injuries · Closed · Aug 17, 1975 · N9196F · Substantial damage - [NTSB MIA75DKG90](https://openairdocs.org/ntsb/MIA75DKG90.md): Bell 206A · Blairsville, GA · Accident · No injuries · Closed · Jun 25, 1974 · N7881S · Substantial damage - [NTSB MKC74DCJ19](https://openairdocs.org/ntsb/MKC74DCJ19.md): Bell 206A · North Platte, NE · Accident · No injuries · Closed · Dec 2, 1973 · N7881S · Substantial damage - [NTSB ANC74AA013](https://openairdocs.org/ntsb/ANC74AA013.md): Hughes 369HS · Ketchikan, AK · Accident · Serious injuries · Closed · Jul 30, 1973 · N177ST · 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 ('03020')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=03020&page=8 --- 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.