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Accidents · NTSB ANC12CA053 · Final report

Piper PA-18-150 accident near Skwentna, Alaska, June 17, 2012

On June 17, 2012 at about 1:00 am local time, a Piper PA-18-150, registered N9488D, was substantially damaged in an accident during taxi (from runway) near Skwentna, Alaska (Shell Lake Airstrip 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 pilot’s selection of unsuitable terrain for taxi.

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

What the record shows

Date
June 17, 2012 · about 1:00 am local time
Place
Skwentna, Alaska · Shell Lake Airstrip · 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
N9488D · registry record · serial 18-6740
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The pilot landed the tailwheel-equipped airplane at a private airstrip. While taxiing to park, the right wheel dropped into a hidden, vegetation-covered, deep hole alongside the runway. The airplane then spun around, sustaining substantial damage to the empennage and left elevator. The pilot reported no preaccident mechanical problems with the airplane.

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

What happened, in order

  1. Loss of control on ground during taxi (from runway) defining event
  2. Collision with terrain or object (not controlled flight into terrain) during taxi (from runway)

The NTSB's findings

  • Environmental issues › Physical environment › Terrain › (general) › Contributed to outcome
  • cause Personnel issues › Action/decision › Info processing/decision › Decision making/judgment › Pilot

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; single-engine sea; instrument: airplane
  • Flight time: 3,150 hours in all; 1,000 in this make and model
  • Last flight review: April 28, 2011
  • Medical certificate: Class 3 (with waivers/limitations)
  • Seat: frt
  • Injury: no injuries

The aircraft

  • Seats: 1
  • Landing gear: fixed
  • Engine: Lycoming O-320 Series (piston); 0 hours total

The flight

  • Departed from: Wasilla AK at 6:30 pm
  • Destination: Skwentna AK
  • Flight plan: none
  • Runway 15

Weather at the time

  • Light: daylight
  • Visibility: 50 statute miles
  • Sky: not recorded; not recorded
  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Flight 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 N9488D the same tail number, which may have belonged to a different aircraft at the time

2006-07-07ANC06CA085 · accident near Skwentna, 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.