# Fatal NTSB investigations: Hughes 369HS 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 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 WPR13LA137](https://openairdocs.org/ntsb/WPR13LA137.md): Hughes 369HS · Latangai Island, Papua New Guinea · Accident · 1 fatal · Limited investigation · Final report · Mar 2, 2013 · N471M · Substantial damage > The failure of both the pilot and the fish master of the vessel to adequately monitor their environment, which resulted in a collision. - [NTSB SEA01FA032](https://openairdocs.org/ntsb/SEA01FA032.md): Hughes 369HS · Pierce, ID · Accident · 2 fatal · Field investigation · Final report · Dec 28, 2000 · N9186F · Substantial damage > While maneuvering, clearance from an object was not maintained. A tree was a factor. - [NTSB MIA00FA029](https://openairdocs.org/ntsb/MIA00FA029.md): Hughes 369HS · Helena, AL · Accident · 2 fatal · Field investigation · Final report · Nov 25, 1999 · N395WM · Destroyed > The pilots continued visual flight rules flight into instrument meteorological conditions resulting in his becoming spatially disoriented and loosing control of the helicopter, which resulted in an uncontrolled descent and impact with the ground. - [NTSB LAX99LA292](https://openairdocs.org/ntsb/LAX99LA292.md): Hughes 369HS · Pohnpei (Pacific Ocean) · Accident · 2 fatal · Limited investigation · Final report · Sep 1, 1999 · N42054 · Destroyed > An in-flight collision with the water for undetermined reasons. - [NTSB LAX98LA200](https://openairdocs.org/ntsb/LAX98LA200.md): Hughes 369HS · Pacific Ocean (Pacific Ocean) · Accident · 2 fatal · Limited investigation · Final report · Jun 16, 1998 · N95MS · Destroyed > The improper shimmying of the tail rotor driveshaft by maintenance personnel which induced fatigue in the tail rotor driveshaft coupling causing it to fail, which resulted in a loss of tail rotor control. A factor is the failure of the pilot to recognize the… - [NTSB LAX97LA218](https://openairdocs.org/ntsb/LAX97LA218.md): Hughes 369HS · Pacific Ocean (Pacific Ocean) · Accident · 1 fatal · Limited investigation · Final report · Jun 20, 1997 · N4250N · Destroyed > The unapproved field modification of the cyclic trim switch, including the use of non-standard parts, which resulted in a hard-over lateral trim failure, and the pilot's subsequent failure to maintain control of the helicopter during a landing approach. A… - [NTSB CHI97LA016](https://openairdocs.org/ntsb/CHI97LA016.md): Hughes 369 · Vestaburg, MI · Accident · 1 fatal · Limited investigation · Final report · Oct 28, 1996 · N9251F · Substantial damage > failure of the pilot to maintain clearance with the wires. - [NTSB LAX95LA063](https://openairdocs.org/ntsb/LAX95LA063.md): McDonnell Douglas 500 · Chuuk Island (Pacific Ocean) · Accident · 2 fatal · Limited investigation · Final report · Dec 29, 1994 · N9128F · Destroyed > undetermined. - [NTSB SEA94FA194](https://openairdocs.org/ntsb/SEA94FA194.md): Hughes 369HS · Seaside, OR · Accident · 2 fatal · Field investigation · Final report · Jul 24, 1994 · N7771F · Destroyed > Inflight collision with terrain for undetermined reasons. - [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 MIA92FA142](https://openairdocs.org/ntsb/MIA92FA142.md): Hughes 369HS · Labelle, FL · Accident · 1 fatal · Field investigation · Final report · Jun 26, 1992 · N9089F · Destroyed > The pilot-in-command's improper application of collective pitch during an autorotative landing resulting in insufficient rotor RPM and in-flight collision with trees and the terrain. Contributing to the accident was the total loss of engine power due to fuel… - [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 MIA87FA046](https://openairdocs.org/ntsb/MIA87FA046.md): Hughes 369HS · Zephyrhills, FL · Accident · 2 fatal · Field investigation · Final report · Dec 9, 1986 · N8390F · Destroyed > A witness stated that she heard the eng on the helicopter quit. She looked out her window and watched the helicopter hit the ground, bounce, hit again, flip over and the tail broke off. The helicopter then burst into flames and exploded. Exam of the eng… - [NTSB SEA86FA056](https://openairdocs.org/ntsb/SEA86FA056.md): McDonnell Douglas 369D · Cougar, WA · Accident · 3 fatal · Field investigation · Final report · Feb 11, 1986 · N609PD · Destroyed > The helicopter departed the landing area after a night photography session across the valley floor from the Mt. St. Helens volcano. Prior to departure the plt reported the weather was closing in and getting 'nasty'. Wx conditions as reported prior to… - [NTSB DEN85FA180](https://openairdocs.org/ntsb/DEN85FA180.md): Hughes 369HS · Keystone, SD · Accident · 4 fatal · Field investigation · Final report · Jul 6, 1985 · N5410W · Destroyed > Main rotor hub was overhauled by a repair station that was not authroized by Hughes helicopters for hub overhauls. The main rotor hub and blades separated in-flt 279 hrs after overhaul. The acft crashed in a densily wooded area. Post accident exam of the main… - [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… - [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 LAX82FA026](https://openairdocs.org/ntsb/LAX82FA026.md): Hughes 369HS · Lakeside, CA · Accident · 2 fatal · Closed · Dec 11, 1981 · N90525 · Destroyed - [NTSB DEN81FA001](https://openairdocs.org/ntsb/DEN81FA001.md): Hughes 369HS · Silverton, CO · Accident · 3 fatal · Closed · Oct 4, 1980 · N9153F · Substantial damage - [NTSB LAX81FA001](https://openairdocs.org/ntsb/LAX81FA001.md): Hughes 369HS · Pacific Ocean (Pacific Ocean) · Accident · 2 fatal · Closed · Sep 30, 1980 · N9252F · 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 IAD80FA071](https://openairdocs.org/ntsb/IAD80FA071.md): Hughes 500 · Stephensville, MD · Accident · 2 fatal · Closed · Mar 24, 1980 · N2769 · Destroyed - [NTSB FTW78FQG29](https://openairdocs.org/ntsb/FTW78FQG29.md): Hughes 369HS · Brownfield, TX · Accident · 1 fatal · Closed · May 8, 1978 · N9066F · Destroyed - [NTSB SEA77FYA28](https://openairdocs.org/ntsb/SEA77FYA28.md): Hughes 369HS · American Falls, ID · Accident · 1 fatal · Closed · Jul 9, 1977 · N9224F · Destroyed - [NTSB FTW77FRA27](https://openairdocs.org/ntsb/FTW77FRA27.md): Piper J3C-65 · Waller, TX · Accident · 2 fatal · Closed · Jun 19, 1977 · N38101 · 2 aircraft · Destroyed - [NTSB ANC76AA128](https://openairdocs.org/ntsb/ANC76AA128.md): Hughes 369HS · Hawk Inlet, AK · Accident · 3 fatal · Closed · Sep 2, 1976 · N9172F · Destroyed - [NTSB SEA76AS058](https://openairdocs.org/ntsb/SEA76AS058.md): Hughes 369HS · Tygh Valley, OR · Accident · 1 fatal · Closed · Jun 28, 1976 · N9123F · Destroyed - [NTSB ANC75AA069](https://openairdocs.org/ntsb/ANC75AA069.md): Hughes 369HS · Petersburg, AK · Accident · 3 fatal · Closed · Mar 23, 1975 · N9139F · Substantial damage - [NTSB FTW73AF029](https://openairdocs.org/ntsb/FTW73AF029.md): Hughes 369HS · Venice, LA · Accident · 1 fatal · Closed · Dec 18, 1972 · N9093F · Destroyed - [NTSB ANC73AA024](https://openairdocs.org/ntsb/ANC73AA024.md): Hughes 369B · Deadhorse, AK · Accident · 1 fatal · Closed · Oct 6, 1972 · N9039F · Destroyed - [NTSB NYC72AN161](https://openairdocs.org/ntsb/NYC72AN161.md): Hughes 369HS · Hornell, NY · Accident · 3 fatal · Closed · Jun 25, 1972 · N9067F · Destroyed - [NTSB FTW72FRD26](https://openairdocs.org/ntsb/FTW72FRD26.md): Hughes 369 · Harahan, LA · Accident · 1 fatal · Closed · May 9, 1972 · N9092F · Minor damage - [NTSB DEN70A0010](https://openairdocs.org/ntsb/DEN70A0010.md): Hughes 369HS · American Fork, UT · Accident · 2 fatal · Closed · Aug 12, 1969 · N9030F · 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.aircraft_model_code IN ('4470728')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?fatal=1&model=4470728 --- 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.