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Accidents · NTSB ANC91LA093 · Final report

Helio H-295 accident near Port Alsworth, Alaska, July 9, 1991

On July 9, 1991 at about 6:20 pm local time, a Helio H-295, registered N456JH, was substantially damaged in an accident near Port Alsworth, Alaska. It was a business flight under general aviation rules (Part 91). 3 people had minor injuries; 1 other was unhurt. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

FAILURE OF THE PILOT TO MAINTAIN SUFFICIENT ALTITUDE AND CLEARANCE FROM MOUNTAINOUS TERRAIN. FACTORS RELATED TO THE ACCIDENT WERE: THE RISING TERRAIN AND A DOWNDRAFT.

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

What the record shows

Date
July 9, 1991 · about 6:20 pm local time
Place
Port Alsworth, Alaska · map
Type
Accident
Injuries
3 people had minor injuries; 1 other was unhurt.
Weather
visual conditions (good weather)
Aircraft
Helio H-295 · all H-295s on the register
Registration
N456JH · no longer on the register · serial 1231
Damage
Substantial damage
Flight
Business flight · general aviation rules (Part 91)

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

THE PILOT STATED THAT WHILE FLYING AT ABOUT 500 FEET ABOVE MOUNTAINOUS TERRAIN & APPROACHING A SADDLE, THE AIRPLANE ENCOUNTERED A DOWNDRAFT. DESPITE THE ADDITION OF FULL POWER, THE AIRPLANE CONTINED TO DESCEND UNTIL IT CONTACTED THE GROUND & NOSED OVER.

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: private
  • Ratings: multi-engine land; multi-engine sea; single-engine land; single-engine sea; instrument: airplane
  • Flight time: 10,042 hours in all; 2,500 in this make and model; 166 in the last 90 days; 90 in the last 30 days; 10,042 as pilot in command
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: unk

The aircraft

  • Last inspection: inspection type not recorded; 0 hours since
  • Maximum gross weight: 3,400 lb
  • Seats: 5
  • Landing gear: fixed
  • Engine: Lycoming GO-480 (piston); 0 hours total

The flight

  • Departed from: NONE Stony River AK at 12:30 pm
  • Destination: NONE Mulchatna River AK
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 360° at 10 knots
  • Visibility: 50 statute miles
  • Sky: not recorded at 500 ft
  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1
Passengers3

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 N456JH the same tail number, which may have belonged to a different aircraft at the time

1988-09-04ANC88LA122 · accident near Anchorage, AK · substantial damage · no 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.