# NTSB investigations: Hughes Helicopters HUGHES 369D, 1987

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 LAX88LA043](https://openairdocs.org/ntsb/LAX88LA043.md): Hughes 369D · Honolulu, HI · Accident · No injuries · Limited investigation · Final report · Nov 14, 1987 · N1113L · Substantial damage
  > The plt rprtd that during an external load operation, the helicopter ran out of fuel. Subsequently, it was damaged when it touched down hard during a forced landing.
- [NTSB LAX88LA025](https://openairdocs.org/ntsb/LAX88LA025.md): Mcdonnell Douglas 369D · Borrego Springs, CA · Accident · No injuries · Limited investigation · Final report · Oct 27, 1987 · N47861 · Substantial damage
  > The pilot and three passengers were flying at low altitude over mountainous terrain looking for big horn sheep. Thirty minutes into the flight the pilot heard a loud noise and the tail yawed left. The pilot turned away from the mountain to look for a place to…
- [NTSB SEA87FA194](https://openairdocs.org/ntsb/SEA87FA194.md): Hughes 369D · Seattle, WA · Accident · Minor injuries · Field investigation · Final report · Sep 27, 1987 · N8613F · Substantial damage
  > The plt rprtd that while he was in cruise flight at about 1000', the eng lost power. He initiated an autorotation to an athletic field in a city park. Drg his apch, he changed his planned touchdown point svrl times due to personnel on the field. He said that…
- [NTSB SEA87FA162](https://openairdocs.org/ntsb/SEA87FA162.md): Hughes 369D · Ketchikan, AK · Accident · 2 fatal · Field investigation · Final report · Aug 12, 1987 · N58318 · 2 aircraft · Destroyed
  > N58318 (Hughes 369, under contract with us geological survey) was inbnd fm se to lnd at Ketchikan-temsco heliport (6Z4) as N73WS (Cessna 185 amphibian) was depg se fm Ketchikan intl arpt (ktn). Ktn & 6Z4 were located in tongass narrows withmtns NE & sw. Rprtd…
- [NTSB LAX87LA199](https://openairdocs.org/ntsb/LAX87LA199.md): Hughes 369D · Tamunings · Accident · 2 fatal · Limited investigation · Final report · Apr 29, 1987 · N10995 · Destroyed
  > A Hughes 369D, operated off of a fishing vessel, went out of control and crashed in the pacific ocean, nr guam. The accident was witnessed by the ship's captain. His statement indicated one of the main rotor blades separated in flt while the helo was orbiting…
- [NTSB SEA87LA074](https://openairdocs.org/ntsb/SEA87LA074.md): Hughes 369D · Forks, WA · Accident · Minor injuries · Limited investigation · Final report · Apr 3, 1987 · N8356F · Destroyed
  > During external load operation the aircraft's engine ceased operating. The helicopter was too close to the ground for recovery. The helicopter descended, struck the ground hard and then rolled over onto its right side. Water in the fuel was discovered after…
- [NTSB LAX87LA140](https://openairdocs.org/ntsb/LAX87LA140.md): Hughes 269D · Palmdale, CA · Accident · No injuries · Limited investigation · Final report · Mar 10, 1987 · N1103V · Substantial damage
  > During an external load operation, the engine lost power. The aircraft collided with the terrain and rolled over. Inspection of the engine revealed an overtemperature to the first and second stage turbine wheel airfoils.
- [NTSB LAX87FA112](https://openairdocs.org/ntsb/LAX87FA112.md): Hughes 369D · Honolulu, HI · Accident · 1 fatal · Field investigation · Final report · Feb 9, 1987 · N1102U · Destroyed
  > Drg tkof clb, a loud noise occurred as 1 of 5 main rotors (mrb's) & the tail boom sepd fm the helicopter (hel). The hel then crashed & hit a submerged reef aprx 200' fm the heliport. An exam of the failed mrb showed its retention strap assy(rsa), pn…
- [NTSB LAX87LA099](https://openairdocs.org/ntsb/LAX87LA099.md): Hughes 369D · Lemon Cove, CA · Accident · No injuries · Limited investigation · Final report · Jan 18, 1987 · N1107N · Substantial damage
  > The plt rprtd that while at 100 to 150 ft AGL on an apch to land, the eng lost pwr as though it had flamed out. He entered an autorotation, but was unable to reach the helipad. Subsequently, the helicopter landed in trees & was badly dmgd. Drg the…

## 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 year(c."eventDate") = 1987
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470706'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4470706&year=1987

---
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.