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Accidents · NTSB ANC82DA062 · Preliminary: the investigation is not finished

Hughes 369D accident near Near Bornite, Alaska, July 28, 1982

On July 28, 1982 at about 10:30 am local time, a Hughes 369D (helicopter), registered N820Y, was destroyed in an accident near Near Bornite, Alaska ((Remote Field Site)). It was a flight of an unrecorded kind under external-load helicopter rules (Part 133). 1 person was seriously injured. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

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

What the record shows

Date
July 28, 1982 · about 10:30 am local time
Place
Near Bornite, Alaska · (Remote Field Site)
Type
Accident
Injuries
1 person was seriously injured.
Weather
visual conditions (good weather)
Aircraft
Hughes 369D · all 369Ds on the register
Registration
N820Y · no longer on the register · serial 900797D
Damage
Destroyed
Flight
Flight of an unrecorded kind · external-load helicopter rules (Part 133)

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

TWO WORKERS WERE TRANSPORTED TO A MINE DRILLING SITE WHERE THE HELICOPTER WAS LANDED ON A MAN-MADE HELI-PAD. THE HELI-PAD WAS AN AREA ABOUT 50 FT LONG AND 12 FT WIDE THAT HAD BEEN CUT INTO THE SIDE OF A ROCKY HILL. AFTER OFF-LOADING THE WORKERS, THE PILOT TOOK OFF, THEN RETURNED A SHORT TIME LATER WITH A 300 GAL STORAGE TANK ON A LONG LINE. AFTER THE TANK WAS LOWERED INTO POSITION, THE HELICOPTER WAS LANDED AT THE END OF THE PAD UNTIL THE LINE WAS RELEASED. AS THE PILOT TOOK OFF AGAIN, HE LIFTED OFF AND WAS AT AN ALTITUDE OF ABOUT 3 TO 5 FT WHEN THE MAIN ROTOR BLADES CONTACTED THE ROCKY EMBANKMENT ON THE UPSLOPE SIDE OF THE HELI-PAD. REPORTEDLY. THE HELICOPTER THEN WENT INTO AN UNCONTROLLABLE SPIN AND TUMBLED ABOUT 300 FT DOWN THE HILL. ONE OF THE WORKERS WAS FATALLY INJURED BY A PIECE OF FLYING DEBRIS.

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, private
  • Ratings: multi-engine land; single-engine land; single-engine sea; rotorcraft: helicopter
  • Flight time: 4,851 hours in all; 247 in this make and model; 247 in the last 90 days
  • Medical certificate: Class 1 (valid medical--no waivers/lim.)
  • Seat: unk

The aircraft

  • Airframe total time: 906 hours
  • Last inspection: inspection type not recorded; 96 hours since
  • Maximum gross weight: 3,550 lb
  • Seats: 5
  • Landing gear: fixed
  • Engine: Allison 250C-20B (turboshaft); 0 hours total

The flight

  • Departed from: Near Bornite AK at 10:30 am
  • Destination: Near Bornite AK
  • Flight plan: not recorded
  • Runway 0

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: not recorded; not recorded
  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1

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.

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.