# Fatal NTSB investigations: Hughes 269C

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 CEN16FA315](https://openairdocs.org/ntsb/CEN16FA315.md): Hughes 269C · Howe, TX · Accident · 1 fatal · Field investigation · Final report · Aug 10, 2016 · N9277R · Substantial damage
  > The improper execution of an autorotation following the loss of engine power, which resulted in an uncontrolled descent into terrain. Contributing to the accident was the flight instructor's lack of remedial action during the autorotation.
- [NTSB WPR15FA204](https://openairdocs.org/ntsb/WPR15FA204.md): Hughes 269C · Asotin, WA · Accident · 2 fatal · Field investigation · Final report · Jul 1, 2015 · N9490F · Destroyed
  > The pilot's failure to maintain adequate clearance from power lines while maneuvering in a canyon.
- [NTSB DEN03FA090](https://openairdocs.org/ntsb/DEN03FA090.md): Hughes 269C · Watkins, CO · Accident · 1 fatal · Field investigation · Final report · May 28, 2003 · N9643F · Destroyed
  > failure of both pilots to initiate a timely recovery from a practice autorotation. A contributing factor was the instructor's inadequate supervision of the pilot receiving instruction.
- [NTSB LAX00LA328](https://openairdocs.org/ntsb/LAX00LA328.md): Hughes 269C · Rancho Murieta, CA · Accident · 1 fatal · Limited investigation · Final report · Sep 7, 2000 · N50638 · Destroyed
  > The pilot's inadequate visual lookout during cruise, which subsequently led to a wire strike.
- [NTSB MIA00GA121](https://openairdocs.org/ntsb/MIA00GA121.md): Hughes 269C · Del Rio, TX · Accident · 2 fatal · Final report · Mar 27, 2000 · N1110N · Destroyed
  > An in-flight loss of control while maneuvering for undetermined reasons resulting in an in-flight collision with terrain. A factor in the accident was the in-flight loss of engine power and rotor rpm.
- [NTSB SEA96FA130](https://openairdocs.org/ntsb/SEA96FA130.md): Hughes 269C · Eldon, WA · Accident · 1 fatal · Field investigation · Final report · Jun 19, 1996 · N7400F · Destroyed
  > fatigue failure of the connecting rod cap, which resulted in loss of engine power and ditching at sea.
- [NTSB LAX96FA177](https://openairdocs.org/ntsb/LAX96FA177.md): Hughes 269C · San Diego, CA · Accident · 1 fatal · Field investigation · Final report · Apr 23, 1996 · N9579F · Destroyed
  > the decision of the pilot to fly at low altitude and low airspeed within a hazardous performance area published in the pilot operating handbook. Factors in the accident were tailwinds, lack of operator preventative maintenance impairing engine power,…
- [NTSB BFO93FA019](https://openairdocs.org/ntsb/BFO93FA019.md): Hughes 269C · Tonawanda, NY · Accident · 2 fatal · Field investigation · Final report · Jan 11, 1993 · N1088Z · Destroyed
  > Improper inflight planning/decision by the pilot and his failure to maintain clearance from an obstacle during flight. Factors related to the accident include poor visibility and weather conditions at dusk, and the pilot's excessive airspeed for the…
- [NTSB BFO92FA144](https://openairdocs.org/ntsb/BFO92FA144.md): Hughes 269C · East Bernstadt, KY · Accident · 2 fatal · Field investigation · Final report · Sep 25, 1992 · N9609F · Destroyed
  > Inadequate maintenance inspection involving failure to detect wear of the clutch spring assembly, resulting in the uncoupling of engine power to the main transmission.
- [NTSB LAX92FA154](https://openairdocs.org/ntsb/LAX92FA154.md): Hughes 269C · Hesperia, CA · Accident · 1 fatal · Field investigation · Final report · Mar 28, 1992 · N9597F · Destroyed
  > A failure of the student pilot to maintain adequate rotor RPM. Contributing to the accident was a failure of the instructor pilot to adequately supervise the training flight and a delay in correcting a low rotor RPM condition.
- [NTSB ATL91FA120](https://openairdocs.org/ntsb/ATL91FA120.md): Hughes 269C · Blakely, GA · Accident · 1 fatal · Field investigation · Final report · Jul 1, 1991 · N11017 · Substantial damage
  > Loss of engine power for an undetermined reason, and failure of the instructor pilot (CFI) to follow procedures and maintain rotor RPM.
- [NTSB BFO90FA079](https://openairdocs.org/ntsb/BFO90FA079.md): Hughes 269C · Jefferson, MD · Accident · 1 fatal · Field investigation · Final report · Sep 25, 1990 · N1094D · Destroyed
  > The failure of the tail rotor drive transmission system due to a worn tail rotor splined drive sleeve, and inadequate maintenance and/or inspection by the operator. Contributing to the loss of control was the student pilot's failure to maintain adequate rotor…
- [NTSB SEA90LA016](https://openairdocs.org/ntsb/SEA90LA016.md): Hughes 269C · Estacada, OR · Accident · 1 fatal · Limited investigation · Final report · Nov 15, 1989 · N9592F · Destroyed
  > The pilot misjudged clearance between her external load and the obstruction. Factors related to the accident were: the obstruction, improper maintenance and modification of the external load line/hook by the operator, failure of the pilot to jettison the…
- [NTSB LAX89FA212](https://openairdocs.org/ntsb/LAX89FA212.md): Hughes 269C · Rainbow Valley, CA · Accident · 2 fatal · Field investigation · Final report · Jun 10, 1989 · N58323 · Destroyed
  > Improper planning/decision by the pilot and his inadequate visual lookout (failure to see and avoid the obstruction). Factors related to the accident were: the adverse weather conditions, the pilot's decision to fly in marginal VFR weather, and the…
- [NTSB FTW89DRG06](https://openairdocs.org/ntsb/FTW89DRG06.md): Hughes 269C · Rocksprings, TX · Accident · 1 fatal · Final report · May 18, 1989 · N58228 · Destroyed
  > The pilot diverted his attention from operation of the helicopter, failed to maintian proper rotor RPM, and failed to maintain altitude (clearance) above the ground, while maneuvering at low altitude. A contributing factor was his impairment from use of a…
- [NTSB ATL89FA035](https://openairdocs.org/ntsb/ATL89FA035.md): Hughes 269C · Mohawk, TN · Accident · 2 fatal · Field investigation · Final report · Nov 14, 1988 · N9575F · Destroyed
  > The helicopter had landed at a private airstrip and the instructor deplaned. The dual student remained in the helicopter with the engine running. The CFI reboarded and the student made the takeoff. Later, on downwind in traffic pattern, a witness reported a…
- [NTSB CHI87MA053](https://openairdocs.org/ntsb/CHI87MA053.md): Hughes 269B · Cross Plaines, IN · Accident · 2 fatal · Major investigation · Final report · Dec 10, 1986 · N8982F · Destroyed
  > The plt & observer were on a power line patrol flt. While proceeding southbound, they apchd an area were the lines were about 23 ft AGL & were crossed by another set of power lines, oriented in an east-west direction. The other power lines were about 45 ft…
- [NTSB FTW83FA343](https://openairdocs.org/ntsb/FTW83FA343.md): Hughes 269C · Houston, TX · Accident · 1 fatal · Field investigation · Final report · Jul 20, 1983 · N8995F · Destroyed
  > The helicopter crashed in a relatively high speed descent while in a slight nose-low and left bank attitude. The acft had been circling at an alt of about 600 ft MSL awaiting clearance to land. The PIC in the left seat, who was not flying the acft, said he…
- [NTSB FTW81FA146](https://openairdocs.org/ntsb/FTW81FA146.md): Hughes 269C · Startzville, TX · Accident · 1 fatal · Closed · Sep 21, 1981 · N8322F · Destroyed
- [NTSB ATL81FA114](https://openairdocs.org/ntsb/ATL81FA114.md): Hughes 269C · Falls Mill, WV · Accident · 2 fatal · Closed · Sep 11, 1981 · N7497F · Destroyed
- [NTSB CHI80FA014](https://openairdocs.org/ntsb/CHI80FA014.md): Hughes 269C · West Milton, OH · Accident · 1 fatal · Closed · Dec 15, 1979 · N7483F · Destroyed
- [NTSB MIA79FA045](https://openairdocs.org/ntsb/MIA79FA045.md): Hughes 269C · Andytown, FL · Accident · 2 fatal · Closed · Jan 27, 1979 · N7450F · Destroyed
- [NTSB IAD78FA104](https://openairdocs.org/ntsb/IAD78FA104.md): Hughes 269C · Robbinsville, NC · Accident · 2 fatal · Closed · Sep 1, 1978 · N9295F · Destroyed
- [NTSB LAX78FA064](https://openairdocs.org/ntsb/LAX78FA064.md): Hughes 269C · Phoenix, AZ · Accident · 2 fatal · Closed · Aug 7, 1978 · N7477F · Destroyed
- [NTSB MIA78FA110](https://openairdocs.org/ntsb/MIA78FA110.md): Hughes 269C · Opa Locka, FL · Accident · 1 fatal · Closed · Aug 5, 1978 · N7455F · Destroyed
- [NTSB DEN78FA017](https://openairdocs.org/ntsb/DEN78FA017.md): Hughes 269C · Colorado Sprgs, CO · Accident · 1 fatal · Closed · May 30, 1977 · N7457F · Destroyed
- [NTSB OAK77FJA07](https://openairdocs.org/ntsb/OAK77FJA07.md): Hughes 269C · Honolulu, HI · Accident · 2 fatal · Closed · Mar 16, 1977 · N9619F · Destroyed
- [NTSB LAX76AL010](https://openairdocs.org/ntsb/LAX76AL010.md): Hughes 269C · Idyllwild, CA · Accident · 1 fatal · Closed · Aug 15, 1975 · N9607F · Destroyed
- [NTSB MKC75AK026](https://openairdocs.org/ntsb/MKC75AK026.md): Hughes 269C · Topeka, KS · Accident · 1 fatal · Closed · Nov 1, 1974 · N9648F · Destroyed
- [NTSB OAK74AP065](https://openairdocs.org/ntsb/OAK74AP065.md): Hughes 269C · Crockett, CA · Accident · 2 fatal · Closed · Jun 4, 1974 · N8966F · Destroyed
- [NTSB MIA74AM096](https://openairdocs.org/ntsb/MIA74AM096.md): Hughes 269C · Key West, FL · Accident · 2 fatal · Closed · May 23, 1974 · N9621F · Destroyed
- [NTSB FTW74AF061](https://openairdocs.org/ntsb/FTW74AF061.md): Cessna 150 · Boise City, OK · Accident · 2 fatal · Closed · Feb 16, 1974 · N22061 · 2 aircraft · Destroyed
- [NTSB OAK74AP015](https://openairdocs.org/ntsb/OAK74AP015.md): Hughes 269C · Oakland, CA · Accident · 2 fatal · Closed · Oct 2, 1973 · N9628F · Destroyed
- [NTSB NYC72AN133](https://openairdocs.org/ntsb/NYC72AN133.md): Hughes 269 · Bergoo, WV · Accident · 2 fatal · Closed · Apr 18, 1972 · N9635F · Destroyed
- [NTSB CHI72AC050](https://openairdocs.org/ntsb/CHI72AC050.md): Hughes 269C · Clarkston, MI · Accident · 1 fatal · Closed · Dec 8, 1971 · N9652F · 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 ('4470504'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?fatal=1&model=4470504

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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.