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Accidents · NTSB SEA94LA147 · Final report

Hughes 369D accident near Snoqualmie, Washington, June 10, 1994

On June 10, 1994 at about 1:00 am local time, a Hughes 369D (helicopter), registered N1088G, was substantially damaged in an accident near Snoqualmie, Washington. It was a business flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

POOR IN-FLIGHT PLANNING/DECISION. FACTORS TO THE ACCIDENT WERE: CLEARANCE NOT MAINTAINED AND TAILWIND.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
June 10, 1994 · about 1:00 am local time
Place
Snoqualmie, Washington · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Hughes 369D · all 369Ds on the register
Registration
N1088G · no longer on the register · serial 700736D
Damage
Substantial damage
Flight
Business flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

THE PILOT REPORTED THAT WHILE MANEUVERING FOR LANDING, HE APPROACHED THE LANDING PAD DOWNWIND. THE PILOT REDUCED POWER AND THE HELICOPTER SETTLED WITH A LOW ROTOR RPM INDICATION. THE PILOT ATTEMPTED TO ABORT THE LANDING; HOWEVER, DURING THIS MANEUVER THE HELICOPTER COLLIDED WITH TREE TOPS.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

Pilot

  • Certificate: commercial pilot
  • Ratings: rotorcraft: helicopter
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 917 hours
  • Last inspection: 100-hour inspection, May 1, 1994; 99 hours since
  • Maximum gross weight: 3,000 lb
  • Seats: 5
  • Landing gear: fixed
  • Engine: Allison 250-C20B (turboshaft); 0 hours total

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 240° at 10 knots, gusting 15
  • Visibility: 30 statute miles
  • Sky: clear
  • Temperature: 64°F (18°C), dew point 0°F (-18°C)
  • Altimeter: 29.00 inHg

Injuries

FatalSeriousMinorNone
Crew1
Passengers1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Other NTSB records under N1088G the same tail number, which may have belonged to a different aircraft at the time

2007-01-04SEA07LA041 · accident near Lyman, WA · substantial damage · serious injuries

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.