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Accidents · NTSB ANC89LA153 · Final report

Piper PA-18 accident near Gulkana, Alaska, August 31, 1989

On August 31, 1989 at about 5:00 pm local time, a Piper PA-18, registered N13931, was substantially damaged in an accident near Gulkana, Alaska (Windy Ridge airport). 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 PILOTS IMPROPER USE OF BRAKES DURING THE LANDING ROLL.

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

What the record shows

Date
August 31, 1989 · about 5:00 pm local time
Place
Gulkana, Alaska · Windy Ridge
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Piper PA-18 · all PA-18s on the register
Registration
N13931 · registry record · serial 18-8778
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: single-engine land
  • Flight time: 132 hours in all; 132 in this make and model; 49 in the last 90 days; 28 in the last 30 days; 96 as pilot in command
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Last inspection: annual inspection
  • Maximum gross weight: 1,250 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320-A2B (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 14, 800 ft by 25 ft

Weather at the time

  • Light: daylight
  • Visibility: 60 statute miles
  • Sky: clear
  • 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.

About this page

Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number ANC89LA153.