# 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. Page 2 of 4 · 167 cases ## Cases, newest first - [NTSB LAX91LA198](https://openairdocs.org/ntsb/LAX91LA198.md): Hughes 369HS · Keanae, HI · Accident · Minor injuries · Limited investigation · Final report · May 5, 1991 · N9219F · Substantial damage > The total failure in fatigue of the helicopter's spur adapter gearshaft. A contributing factor was related to the lack of a suitable emergency landing site. - [NTSB LAX91LA172](https://openairdocs.org/ntsb/LAX91LA172.md): Hughes 369C · Papua, Papua New Guinea · Accident · Minor injuries · Limited investigation · Final report · Apr 2, 1991 · N9227F · Destroyed > The loss of control of the helicopter due to a restriction of the cyclic control system. - [NTSB BFO91LA036](https://openairdocs.org/ntsb/BFO91LA036.md): Hughes 369HS · Columbia, MD · Accident · No injuries · Limited investigation · Final report · Mar 27, 1991 · N5FC · Substantial damage > The pilot's inadequate visual lookout, which resulted in his failure to see-and-avoid the obstruction (fence post). - [NTSB FTW90GA185](https://openairdocs.org/ntsb/FTW90GA185.md): Hughes 369HS · New Orleans, LA · Accident · No injuries · Final report · Sep 21, 1990 · N71552 · Substantial damage > The pilot's failure to maintain rotor RPM. A factor in the accident was the lose of engine power due to fuel starvation. - [NTSB LAX90FA248](https://openairdocs.org/ntsb/LAX90FA248.md): McDonnell Douglas 369HS · Modesto, CA · Accident · Minor injuries · Field investigation · Final report · Jul 9, 1990 · N505WW · Destroyed > In-flight engine fire of undetermined origin. - [NTSB SEA90LA106](https://openairdocs.org/ntsb/SEA90LA106.md): Hughes 369HS · Randle, WA · Accident · No injuries · Limited investigation · Final report · Jun 21, 1990 · N4428F · Substantial damage > The pilot failed to compensate for the wind conditions. - [NTSB NYC90LA125](https://openairdocs.org/ntsb/NYC90LA125.md): Hughes 369HS · Brookville, PA · Accident · Serious injuries · Limited investigation · Final report · Jun 5, 1990 · N8315F · Destroyed > Worn tail rotor pitch control assembly, due to improper maintenance/installation, and subsequent fatigue failure of the tail rotor swashplate. - [NTSB LAX90LA162](https://openairdocs.org/ntsb/LAX90LA162.md): Hughes 369C · Kahului, HI · Accident · No injuries · Limited investigation · Final report · May 4, 1990 · N9219F · Substantial damage > The pilots failure to ensure that adequate room existed to position the helicopter on the landing platform. Contributing to the accident was the failure of ground personnel to ensure that hazards to the landing helicopter were clear of the landing area. - [NTSB FTW90LA095](https://openairdocs.org/ntsb/FTW90LA095.md): Hughes 369HS · Junction, TX · Accident · No injuries · Limited investigation · Final report · Apr 15, 1990 · N9138F · Substantial damage > The pilot in command's inadequate execution of the autorotation following a engine failure which resulted from his failure to refuel the aircraft with the proper grade of fuel when he ran short during the flight. - [NTSB FTW90LA090](https://openairdocs.org/ntsb/FTW90LA090.md): Hughes H500C · Houston, TX · Accident · No injuries · Limited investigation · Final report · Apr 3, 1990 · N9128F · Substantial damage > The total failure of the engine for undertemined reasons and the pilot misjudging the flare prior to touchdown. - [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 MKC90LA024](https://openairdocs.org/ntsb/MKC90LA024.md): Mcdonnell Douglas 369HS · Oklee, MN · Accident · Serious injuries · Limited investigation · Final report · Nov 9, 1989 · N9213F · Substantial damage > An undetermined power plant failure. Factors related to the accident were: the snow covered terrain, snow, and gusty wind. - [NTSB NYC89LA171](https://openairdocs.org/ntsb/NYC89LA171.md): Hughes 369HS · Niagara Falls, NY · Accident · No injuries · Limited investigation · Final report · May 30, 1989 · N9238F · Substantial damage > Failure of the pilot to see and avoid the cables. - [NTSB MKC89FA004](https://openairdocs.org/ntsb/MKC89FA004.md): Hughes 500C · Branson, MO · Accident · Serious injuries · Field investigation · Final report · Oct 8, 1988 · N506WW · Substantial damage > The flight was conducted for sightseeing with 5 passengers onboard. The pilot turned on final approach with 35 knots of airspeed and encountered a high rate of descent. The pilot reported that he noted a split tach and initiated an autorotation, but was… - [NTSB LAX88LA322](https://openairdocs.org/ntsb/LAX88LA322.md): Hughes 369HS · Columbia, CA · Accident · No injuries · Limited investigation · Final report · Sep 16, 1988 · N9110F · Substantial damage > During an external load operation, there was an indication of high torque and the oil chip light illuminated. The engine lost power and the pilot initiated an autorotation. The helicopter collided with the sloping terrain and rolled over. Inspection of the… - [NTSB MIA88FA257](https://openairdocs.org/ntsb/MIA88FA257.md): Hughes 500 · Riviera Beach, FL · Accident · Serious injuries · Field investigation · Final report · Aug 19, 1988 · N3766Z · Substantial damage > The traffic watch helicopter was cruising northbound along the interstate at 450 ft AGL & 85 KTS airspeed. A grinding noise was heard & the tail rotor separated from the acft. The acft began an uncommanded right turn which was arrested in about 1/4 turn. The… - [NTSB LAX88LA059](https://openairdocs.org/ntsb/LAX88LA059.md): Hughes 369HS · Lihue, Kauai, HI · Accident · Serious injuries · Limited investigation · Final report · Nov 26, 1987 · N77DJ · Substantial damage > Pilot failure to maintain adequate main rotor RPM. - [NTSB CHI87LA180](https://openairdocs.org/ntsb/CHI87LA180.md): Hughes 369HS · Griffith, IN · Accident · No injuries · Limited investigation · Final report · Jul 30, 1987 · N42405 · Substantial damage > The tail boom of the helicopter was severed after rotor blade contact during a hard landing. The acc occurred during an autorotation demo for the police dept with a power recovery. Application of power was late and the helicopter landed hard and bounced. The… - [NTSB ATL87DLQ02](https://openairdocs.org/ntsb/ATL87DLQ02.md): Hughes 369HS · Hawesville, KY · Accident · Minor injuries · Final report · May 28, 1987 · N9180F · Substantial damage > During a weed control spraying operation, the pilot experienced a power failure 45 feet above the ground. The autorotation attempt resulted in the helicopter impacting the ground on it's left side. The investigation disclosed that the flexible fuel line to… - [NTSB SEA87LA079](https://openairdocs.org/ntsb/SEA87LA079.md): Hughes 369HS · Yakima, WA · Accident · No injuries · Limited investigation · Final report · Apr 11, 1987 · N8313F · Substantial damage > Six miles from the airport, at cruise, the engine ceased operating due to fuel exhaustion. The plt had noticed the low fuel warning light on 10 minutes prior to the engine failure but elected to continue his flight. Autorotation was made from 1,000 feet AGL… - [NTSB MIA87LA106](https://openairdocs.org/ntsb/MIA87LA106.md): Hughes 364HS · Opa Locka, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 12, 1987 · N4507C · Substantial damage > The pilot of the helicopter was executing a normal approach to the ground when as he neared the ground the ventral fin struck the ground. The tail rotor driveshaft re-centered and the pilot thought the accompanying shudder was a tail rotor failure, and landed… - [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 ATL86LA251](https://openairdocs.org/ntsb/ATL86LA251.md): Hughes 369HS/H-500 · Waterloo, AL · Accident · No injuries · Limited investigation · Final report · Sep 7, 1986 · N9181F · Substantial damage > The acft lifted off the top of the support truck and started a takeoff with a partial load of chemicals to be applied to a logged over forest area. About 10-15 feet after lift off the plt detected a loss of rotor RPM. He was at the edge of a ravine with steep… - [NTSB CHI86LA219](https://openairdocs.org/ntsb/CHI86LA219.md): Hughes 500 (369HS) · West Lafayette, IN · Accident · Minor injuries · Limited investigation · Final report · Sep 6, 1986 · N2254X · Destroyed > The helicopter was at a low altitude hover video taping an athletic event when the aft flex coupling on the tail rotor failed. The plt was unable to regain control and during descent the main rotor blades struck the roof of a residence. The helicopter then… - [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 ATL85LA183](https://openairdocs.org/ntsb/ATL85LA183.md): Hughes 369HS · Aiken, SC · Accident · No injuries · Limited investigation · Final report · Jun 7, 1985 · N9146F · Substantial damage > During a landing, the eng lost power & the helicopter touched down hard. The plt stated that prior to the 15 min flt, the fuel gage was indicating 125 lbs of fuel & at the accident site it indicated 90 lbs of fuel. A post crash inspection of the fuel system… - [NTSB ATL85LA031](https://openairdocs.org/ntsb/ATL85LA031.md): Hughes 369HS · Hogansville, GA · Accident · Serious injuries · Limited investigation · Final report · Nov 9, 1984 · N505WW · Minor damage > A deplaning passenger walked into the rotating tail rotor. The passenger had been walked away from the acft by the plts brother but she returned on her own and was struck by the tail rotor. - [NTSB CHI85LA018](https://openairdocs.org/ntsb/CHI85LA018.md): Hughes 500 · Grosse Ile, MI · Accident · No injuries · Limited investigation · Final report · Oct 18, 1984 · N9034F · Substantial damage > Plt attempted to start helicopter with main rotor blades tied down. - [NTSB LAX84LA163](https://openairdocs.org/ntsb/LAX84LA163.md): Hughes 500C (369HS) · San Diego, CA · Accident · Serious injuries · Limited investigation · Final report · Feb 5, 1984 · N8319F · Substantial damage > The plt reported a partial power loss. During the forced landing tahe right skid collapsed & the t/r severed the tail boom. During a subsequent eng test, the eng would produce no more than 20 PSI torque at 100% N2. The fuel control & fuel nozzle were found to… - [NTSB DEN84LA075](https://openairdocs.org/ntsb/DEN84LA075.md): Hughes 369HS · Buffalo, WY · Accident · No injuries · Limited investigation · Final report · Jan 27, 1984 · N4507C · Substantial damage > The helicopter lost power a few minutes after takeoff and made a forced landing. The acft had been refueled from a fuel truck shortly before takeoff. Samples of fuel from the acft and the fuel truck were examined and found to contain water. - [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 MKC83LA149](https://openairdocs.org/ntsb/MKC83LA149.md): Hughes 369HS · Springfield, MO · Accident · No injuries · Limited investigation · Final report · Jul 9, 1983 · N500PA · Substantial damage > The plt reported that he had made a practice autorotation with a full power recovery & was landing when the accident occurred. He said the helicopter touched down hard, tail 1st, and rocked forward. The helicopter remained upright, but the main rotors struck… - [NTSB MIA83LA079](https://openairdocs.org/ntsb/MIA83LA079.md): Hughes 500-369HS · Boca Raton, FL · Accident · No injuries · Limited investigation · Final report · Feb 21, 1983 · N2254X · Substantial damage > The plt reported the flt experienced a total eng power loss & the acft was ditched in the intracoastal waterway. All examinations & tests conducted during the investigation revealed no evidence of a preimpact failure or malfunction of the airframe or eng. - [NTSB ATL82DA231](https://openairdocs.org/ntsb/ATL82DA231.md): Hughes 369HS · Wrightsville Bc, NC · Accident · No injuries · Final report · Aug 8, 1982 · N4265P · Substantial damage > The pilot reported that he initiated a downwind takeoff in a 10 kt wind and started a climb over water. Reportedly, the helicopter began to spin to the right as it reached an altitude of about 50 ft AGL and 20 KTS. The pilot allowed the helicopter to rotate… - [NTSB SEA82FYA07](https://openairdocs.org/ntsb/SEA82FYA07.md): Hughes 369HS · Gooding, ID · Accident · Serious injuries · Final report · May 6, 1982 · N9184F · Destroyed > While making a turn at the end of a swath run, the pilot heard a bang and then noticed a loss of engine power. He entered an autorotative landing from a low altitude at low airspeed. Subsequently, the helicopter landed hard and rolled over on its right side.… - [NTSB ANC82DA039](https://openairdocs.org/ntsb/ANC82DA039.md): Hughes 369HS · Tok, AK · Accident · No injuries · Final report · May 4, 1982 · N9239F · Substantial damage > The pilot was conducting a non-revenue, sling-load operation on mt neuberer, while donating his services to Tok community tv, inc. he stated that he was lifting three empty propane bottles from a snow field when he noticed the auto relight lamp flash. He… - [NTSB SEA82DA055](https://openairdocs.org/ntsb/SEA82DA055.md): Hughes 500C · Darrington, WA · Accident · No injuries · Final report · Apr 19, 1982 · N9131F · Substantial damage > During an approach to a 9100 foot high snow covered landing site the wind shifted to a tailwind condition. The pilot elected to continue and attempted a skid on landing. While skidding through the snow the left skid impacted rising terrain underneath a 12… - [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 MIA82FKT02](https://openairdocs.org/ntsb/MIA82FKT02.md): Hughes 369HS · Sunrise, FL · Accident · Minor injuries · Closed · Nov 23, 1981 · N9071F · Destroyed - [NTSB CHI82FCA01](https://openairdocs.org/ntsb/CHI82FCA01.md): Hughes 369HS · Cahokia, IL · Accident · No injuries · Closed · Nov 14, 1981 · N9083F · Substantial damage - [NTSB LAX82DUJ03](https://openairdocs.org/ntsb/LAX82DUJ03.md): Hughes 369HS · Salome, AZ · Accident · No injuries · Closed · Oct 28, 1981 · N9084F · Substantial damage - [NTSB ATL81FA118](https://openairdocs.org/ntsb/ATL81FA118.md): Hughes 369A · Atlanta, GA · Accident · Serious injuries · Closed · Sep 30, 1981 · N3766Z · Substantial damage - [NTSB CHI81IA037](https://openairdocs.org/ntsb/CHI81IA037.md): Hughes 369HS · Cahokia, IL · Incident · No injuries · Closed · Apr 21, 1981 · N9083F · Minor damage - [NTSB LAX81FA032](https://openairdocs.org/ntsb/LAX81FA032.md): Hughes 369HS · Henderson, NV · Accident · Minor injuries · Closed · Jan 19, 1981 · N5537 · 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 ANC80DA083](https://openairdocs.org/ntsb/ANC80DA083.md): Hughes 500C · Sitka, AK · Accident · Minor injuries · Closed · Aug 12, 1980 · N9052F · Substantial damage Next page: https://openairdocs.org/ntsb.md?model=4470728&page=3 ## 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.aircraft_model_code IN ('4470728')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=4470728&page=2 --- 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.