The U.S. aircraft register, updated daily
Accidents · NTSB ANC84LA081 · Preliminary: the investigation is not finished

Piper PA-18-150 accident near Skwentna, Alaska, June 2, 1984

On June 2, 1984 at about 8:00 pm local time, a Piper PA-18-150, registered N63964, was substantially damaged in an accident near Skwentna, Alaska. It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. 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
June 2, 1984 · about 8:00 pm local time
Place
Skwentna, Alaska · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Piper PA-18-150 · all PA-18-150s on the register
Registration
N63964 · registry record · serial 18-8009030
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE PLT SELECTED A MARSHY SOFT TUNDRA FOR A LANDING. THE ROLLOUT WAS LONGER THAN INTENDED. BEFORE STOPPING, THE ACFT LANDING GEAR SANK INTO THE MUSKEG & THE ACFT NOSED OVER. THE PLT STATED THAT NO DEFICIENCIES WERE NOTED IN EQUIPMENT.

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: single-engine land; instrument: airplane
  • Flight time: 1,312 hours in all; 443 in this make and model; 22 in the last 90 days; 1,202 as pilot in command
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: frt

The aircraft

  • Airframe total time: 285 hours
  • Last inspection: annual inspection; 100 hours since
  • Maximum gross weight: 1,750 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320-A2A (piston); 0 hours total

The flight

  • Departed from: MRI Anchorage AK at 11:00 am
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Visibility: 100 statute miles
  • Sky: clear
  • Temperature: 61°F (16°C), dew point 0°F (-18°C)
  • Observation at 12:00 pm from ANC, 76 miles away

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.