# NTSB investigations, AK: Undetermined

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB ANC99LA065](https://openairdocs.org/ntsb/ANC99LA065.md): Stinson 108 · Anchorage, AK · Accident · 1 fatal · Limited investigation · Final report · May 24, 1999 · N793C · Destroyed
  > Undetermined.
- [NTSB ANC98LA001](https://openairdocs.org/ntsb/ANC98LA001.md): Piper PA-22-160 · Sterling, AK · Accident · 1 fatal · Limited investigation · Final report · Oct 3, 1997 · N8955D · Destroyed
  > Undetermined.
- [NTSB ANC97FA008](https://openairdocs.org/ntsb/ANC97FA008.md): Cessna 208B · Bethel, AK · Accident · 1 fatal · Field investigation · Final report · Nov 26, 1996 · N4704B · Destroyed
  > failure of the pilot to maintain control of the airplane, while maneuvering to reverse direction after takeoff, after encountering an undetermined anomaly. The undetermined anomaly was a related factor.
- [NTSB ANC94LA133](https://openairdocs.org/ntsb/ANC94LA133.md): Champion 7ECA · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Sep 10, 1994 · N68522 · Substantial damage
  > Undetermined.
- [NTSB ANC94LA127](https://openairdocs.org/ntsb/ANC94LA127.md): Piper PA-12 · Eagle, AK · Accident · No injuries · Limited investigation · Final report · Jul 30, 1994 · N3849M · Substantial damage
  > Undetermined.
- [NTSB ANC89LA181](https://openairdocs.org/ntsb/ANC89LA181.md): Cessna R172K · Anchorage, AK · Accident · 4 fatal · Limited investigation · Final report · Aug 12, 1989 · N1211V · Destroyed
  > Undetermined.
- [NTSB ANC87LA005](https://openairdocs.org/ntsb/ANC87LA005.md): Taylorcraft BC-12D · Chickaloon Flat, AK · Accident · Serious injuries · Limited investigation · Final report · Oct 19, 1986 · N39146 · Substantial damage
  > The pilot-in-command refused to cooperate and would not submit an NTSB form 6120.1 nor would he discuss the accident except that he crashed upon landing. The plts med. Cert had expired.
- [NTSB ANC86LA036](https://openairdocs.org/ntsb/ANC86LA036.md): Piper PA-18 · Kotzebue, AK · Accident · No injuries · Limited investigation · Final report · Mar 20, 1986 · N3935Z · Substantial damage
  > The student pilot lost control of the aircraft on landing at a winter ice landing strip.
- [NTSB ANC83FA143](https://openairdocs.org/ntsb/ANC83FA143.md): Piper PA-18 · Hope, AK · Accident · Serious injuries · Field investigation · Final report · Aug 7, 1983 · N4301Z · Substantial damage
  > The acft crashed under unknown circumstances. The wreckage was removed after an aerial survey & has not been located.
- [NTSB ANC82FAG14](https://openairdocs.org/ntsb/ANC82FAG14.md): Cessna 180 · Skwenta, AK · Accident · 3 fatal · Final report · Jan 2, 1982 · N7641A · Destroyed
  > The aircraft departed finger lake at approximately 1000 ast for a short ice fishing trip to fish lakes. The aircraft never returned and a search was started. The wreckage was located near the kahiltna river about 5 miles from the intended destination on…

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'AK' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 400)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=400&state=AK

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.