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Accidents · NTSB GAA18CA497 · Final report

Piper PA18 accident near Stony River, Alaska, August 18, 2018

On August 18, 2018 at about 10:08 pm local time, a 1961 Piper PA18, registered N3872Z, was substantially damaged in an accident during landing (landing roll) near Stony River, 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 pilot's selection of unsuitable terrain for landing, which resulted in a nose-over.

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

What the record shows

Date
August 18, 2018 · about 10:08 pm local time
Place
Stony River, Alaska · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Piper PA18 150, built 1961 · all PA18s on the register
Registration
N3872Z · registry record · serial 18-7657
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The pilot of the tailwheel-equipped airplane reported that, during the landing roll on a remote, unimproved airstrip, the airplane nosed over. The airplane sustained substantial damage to the rudder and lift struts. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

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 landing (landing roll) defining event
  2. Nose over/nose down during landing (landing roll)

The NTSB's findings

  • cause Personnel issues › Action/decision › Info processing/decision › Decision making/judgment › Pilot
  • cause Environmental issues › Physical environment › Terrain › Rough terrain › Effect on operation

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; single-engine sea; instrument: airplane
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: unk
  • Injury: no injuries

The aircraft

  • Last inspection: inspection type not recorded
  • Maximum gross weight: 1,750 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320 SERIES (piston); 0 hours total

The flight

  • Flight plan: none

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: overcast at 4,800 ft
  • Temperature: 59°F (15°C), dew point 46°F (8°C)
  • Altimeter: 30.25 inHg
  • Observation at 11:02 pm from SLQ, 17 miles away

Injuries

FatalSeriousMinorNone
Flight crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

2 documents, released by the NTSB on December 10, 2019. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

#DocumentWhat it is
1 Record of Conversation - Pilot PDF, 1 page View Download
2 Record of Conversation - FAA PDF, 1 page View Download

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

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.