# NTSB investigations: Piper PA-18, 1990

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 ATL90LA175](https://openairdocs.org/ntsb/ATL90LA175.md): Piper PA-18 · Midfield, AL · Accident · No injuries · Limited investigation · Final report · Sep 22, 1990 · N5429H · Substantial damage
  > The pilot's inadequate assessment of deteriorating weather conditions and his resultant flight into areas of low clouds. The safety board believes that the pilot's overall lack of experience was a factor in the accident.
- [NTSB ANC90LA186](https://openairdocs.org/ntsb/ANC90LA186.md): Piper PA-18-150 · Delta Junction, AK · Accident · No injuries · Limited investigation · Final report · Sep 22, 1990 · N2518A · Substantial damage
  > The pilot's inadequate removal of snow and ice prior to takeoff.
- [NTSB ANC90LA159](https://openairdocs.org/ntsb/ANC90LA159.md): Piper PA-18 · Northway, AK · Accident · No injuries · Limited investigation · Final report · Aug 31, 1990 · N4091Z · Substantial damage
  > The pilot-in-command's failure to maintain aircraft control.
- [NTSB ATL90FA153](https://openairdocs.org/ntsb/ATL90FA153.md): Piper PA-18 · Southport, NC · Accident · 2 fatal · Field investigation · Final report · Aug 2, 1990 · N9239T · Destroyed
  > The entry into a flat spin which precluded recovery by the pilot. The reason for the spin becoming flat could not be determined.
- [NTSB ANC90LA126](https://openairdocs.org/ntsb/ANC90LA126.md): Piper PA-18 · Gulkana, AK · Accident · Serious injuries · Limited investigation · Final report · Jul 29, 1990 · N2362A · Substantial damage
  > The pilot-in-command's failure to maintain flying speed during the go-around.
- [NTSB DEN90FA139](https://openairdocs.org/ntsb/DEN90FA139.md): Piper PA-18 · Laurel, MT · Accident · 2 fatal · Field investigation · Final report · Jun 22, 1990 · N9926D · Destroyed
  > The pilot's failure to maintain proper clearance from other objects wwhile maneuvering.
- [NTSB SEA90LA090](https://openairdocs.org/ntsb/SEA90LA090.md): Piper PA18 · Palouse, WA · Accident · Minor injuries · Limited investigation · Final report · Jun 1, 1990 · N5895D · Substantial damage
  > The pilots poorly planned approach for landing.
- [NTSB ANC90LA073](https://openairdocs.org/ntsb/ANC90LA073.md): Piper PA-18 · Talkeetna, AK · Accident · No injuries · Limited investigation · Final report · May 21, 1990 · N2515A · Substantial damage
  > Collapse of the left main landing gear due to an overload failure induced by previous damage which occurred during an improper level-off by the pilot.
- [NTSB ANC90LA048](https://openairdocs.org/ntsb/ANC90LA048.md): Piper PA-18 · Kodiak, AK · Accident · No injuries · Limited investigation · Final report · Apr 1, 1990 · N6981B · Substantial damage
  > The pilot failed to maintain proper obstacle clearance altitude during his final approach.

## 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 year(c."eventDate") = 1990
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('7101802'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7101802&year=1990

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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.