# NTSB investigations: Lycoming O-320 series, AK

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 ANC26LA065](https://openairdocs.org/ntsb/ANC26LA065.md): Piper PA-18-125 · Wasilla, AK · Accident · No injuries · Class 4 · Limited · Investigation open · Jun 24, 2026 · N7178K · Substantial damage
- [NTSB ANC25LA075](https://openairdocs.org/ntsb/ANC25LA075.md): Piper PA-18-150 · Palmer, AK · Accident · No injuries · Class 4 · Limited · Final report · Jul 11, 2025 · N8979D · Substantial damage
  > The pilot's excessive braking during the landing roll, resulting in a nose over.
- [NTSB ANC24LA006](https://openairdocs.org/ntsb/ANC24LA006.md): Charles J Kase Kase KUB · Big Lake, AK · Accident · No injuries · Class 4 · Limited · Final report · Nov 18, 2023 · N853AK · Substantial damage
  > The pilot’s selection of an unsuitable landing site that was covered in deep snow.
- [NTSB ANC22LA058](https://openairdocs.org/ntsb/ANC22LA058.md): Piper PA-18-150 · Port Alsworth, AK · Accident · No injuries · Class 4 · Limited · Final report · Jul 15, 2022 · N14LD · Substantial damage
  > The pilot’s excessive use of brakes which resulted in a nose-over.
- [NTSB ANC22LA043](https://openairdocs.org/ntsb/ANC22LA043.md): Pepperd Greg J Caribou Cruiser · Wasilla, AK · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 11, 2022 · N907GP · Substantial damage
  > The pilot's overapplication of brakes during landing, which resulted in a nose-over.
- [NTSB GAA19CA388](https://openairdocs.org/ntsb/GAA19CA388.md): Piper PA18 · Talkeetna, AK · Accident · No injuries · Data collection · Final report · Jul 5, 2019 · N5830C · Substantial damage
  > The pilot's improper decision to land on rough, grassy terrain, which resulted in a nose-over.
- [NTSB ANC14CA079](https://openairdocs.org/ntsb/ANC14CA079.md): Piper PA 18-135 · Susitna, AK · Accident · No injuries · Data collection · Final report · Sep 13, 2014 · N959E · Substantial damage
  > The pilot's inadequate compensation for gusting, variable wind conditions during initial climb after takeoff.
- [NTSB ANC14CA063](https://openairdocs.org/ntsb/ANC14CA063.md): Piper PA 18-150 · Talkeetna, AK · Accident · Minor injuries · Data collection · Final report · Aug 11, 2014 · N8979D · Substantial damage
  > The pilots excessive use of the airplanes brakes during the landing roll, which resulted in a nose over. Contributing to the accident was the flight instructor's inadequate supervision of the training flight.
- [NTSB ANC14CA018](https://openairdocs.org/ntsb/ANC14CA018.md): Piper PA 18 · Tanana, AK · Accident · No injuries · Data collection · Final report · Mar 8, 2014 · N8281C · Substantial damage
  > The passenger inadvertently interfered with the rudder control pedal, which resulted in a loss of directional control during takeoff.
- [NTSB ANC92LA015](https://openairdocs.org/ntsb/ANC92LA015.md): Piper PA-14 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Nov 8, 1991 · N4285H · Substantial damage
  > The pilot's loss of control during final approach when his attention was diverted to trying to operate the vernier throttle. Contributing to the accident was the pilot's lack of familiarity with the aircraft and his failure to maintain directional control of…
- [NTSB ANC76DAH24](https://openairdocs.org/ntsb/ANC76DAH24.md): Piper PA-18 · Gulkana, AK · Accident · No injuries · Closed · Jun 25, 1976 · N2855T · Substantial damage
- [NTSB ANC70D0074](https://openairdocs.org/ntsb/ANC70D0074.md): Piper PA-18 · Fairbanks, AK · Accident · No injuries · Closed · Oct 9, 1969 · N7178K · Substantial damage
- [NTSB ANC68F0088](https://openairdocs.org/ntsb/ANC68F0088.md): Piper PA-18 · Gulkana, AK · Accident · No injuries · Closed · Sep 21, 1967 · N2855T · Substantial damage
- [NTSB ANC66F0038](https://openairdocs.org/ntsb/ANC66F0038.md): Piper PA-18 · Mcgrath, AK · Accident · No injuries · Closed · Jul 25, 1965 · N7545K · Substantial damage

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('42389'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=42389&state=AK

---
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.