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Accidents · NTSB ANC89LA086 · Final report

Piper PA-12 accident near Anaktuvuk Pass, Alaska, June 4, 1989

On June 4, 1989 at about 11:30 pm local time, a Piper PA-12, registered N3148M, was substantially damaged in an accident near Anaktuvuk Pass, Alaska. It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

THE PILOT FAILED TO ADEQUATELY COMPENSATE FOR DOWNDRAFTS ENCOUNTERED AFTER DEPARTING A GRAVEL BAR THAT WAS SURROUNDED BY MOUNTAINOUS TERRAIN.

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

What the record shows

Date
June 4, 1989 · about 11:30 pm local time
Place
Anaktuvuk Pass, Alaska
Type
Accident
Injuries
1 person had minor injuries.
Weather
visual conditions (good weather)
Aircraft
Piper PA-12 · all PA-12s on the register
Registration
N3148M · registry record · serial 12-1835
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

Pilot

  • Certificate: private
  • Ratings: multi-engine land; single-engine sea; instrument: airplane
  • Flight time: 1,028 hours in all; 267 in this make and model; 81 in the last 90 days; 32 in the last 30 days; 935 as pilot in command
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: frt

The aircraft

  • Airframe total time: 3,637 hours
  • Last inspection: annual inspection, March 1, 1989; 81 hours since
  • Maximum gross weight: 1,935 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320-B2B (piston); 0 hours total

The flight

  • Destination: BET Bettles AK
  • Flight plan: VFR
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 120° at 5 knots
  • Visibility: 20 statute miles
  • Sky: broken clouds at 6,000 ft; scat at 6,000 ft
  • Temperature: 55°F (13°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.

Other NTSB records under N3148M the same tail number, which may have belonged to a different aircraft at the time

2014-09-24ANC14CA088 · accident near Holy Cross, AK · substantial damage · no injuries
1988-09-12ANC88LA133 · accident near Fairbanks, 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.