# NTSB investigations: Amateur-built UNKNOWN ENG, 1981

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 DEN82FTE10](https://openairdocs.org/ntsb/DEN82FTE10.md): Mome II · Longmont, CO · Accident · No injuries · Closed · Nov 23, 1981 · N9993A · Substantial damage
- [NTSB SEA82DYK02](https://openairdocs.org/ntsb/SEA82DYK02.md): Piper PA-24 · Gold Beach, OR · Accident · No injuries · Closed · Oct 18, 1981 · N7686P · Substantial damage
- [NTSB FTW82DPD01](https://openairdocs.org/ntsb/FTW82DPD01.md): Piper PA-36 · Munday, TX · Accident · No injuries · Closed · Oct 5, 1981 · N57600 · Substantial damage
- [NTSB SEA81DYM39](https://openairdocs.org/ntsb/SEA81DYM39.md): Geo. Mccall KR-2 · La Grande, OR · Accident · No injuries · Closed · Aug 30, 1981 · N54622 · Substantial damage
- [NTSB SEA81FYK17](https://openairdocs.org/ntsb/SEA81FYK17.md): Piper PA-12 · Bend, OR · Accident · Serious injuries · Closed · Aug 28, 1981 · N7621H · Destroyed
- [NTSB CHI81DEC41](https://openairdocs.org/ntsb/CHI81DEC41.md): Blanik L-13 · Oxford, MI · Accident · Minor injuries · Closed · Aug 19, 1981 · N3462 · Substantial damage
- [NTSB DEN81FTK16](https://openairdocs.org/ntsb/DEN81FTK16.md): Grum-Amer AA-5B · Custer, SD · Accident · No injuries · Closed · Jul 28, 1981 · N81272 · Substantial damage
- [NTSB DEN81FA053](https://openairdocs.org/ntsb/DEN81FA053.md): Let Blanik · Aspen, CO · Accident · 2 fatal · Closed · Jul 26, 1981 · N38928 · Destroyed
- [NTSB DEN81FA048](https://openairdocs.org/ntsb/DEN81FA048.md): Ryan Aero ST-A · Eaton, CO · Accident · 1 fatal · Closed · Jul 10, 1981 · N27JG · Destroyed
- [NTSB FTW81FRA39](https://openairdocs.org/ntsb/FTW81FRA39.md): Boeing A75N1 · Hockley, TX · Accident · No injuries · Closed · Jun 7, 1981 · N64905 · Substantial damage
- [NTSB FTW81FRA30](https://openairdocs.org/ntsb/FTW81FRA30.md): Hughes 269C · Houston, TX · Accident · Minor injuries · Closed · May 13, 1981 · N7413F · Destroyed
- [NTSB SEA81FYK08](https://openairdocs.org/ntsb/SEA81FYK08.md): Piper PA-22 · Medford, OR · Accident · Minor injuries · Closed · Apr 30, 1981 · N7712D · Substantial damage
- [NTSB FTW81DRD17](https://openairdocs.org/ntsb/FTW81DRD17.md): Grumman G-164A · Lake Charles, LA · Accident · No injuries · Closed · Apr 3, 1981 · N6787Q · Substantial damage
- [NTSB FTW81DQA21](https://openairdocs.org/ntsb/FTW81DQA21.md): Raven AX-7 · Rio Rancho, NM · Accident · Serious injuries · Closed · Mar 29, 1981 · N1237R · No damage
- [NTSB FTW81DQD18](https://openairdocs.org/ntsb/FTW81DQD18.md): Schweizer 1-26E · Dell City, TX · Accident · No injuries · Closed · Mar 22, 1981 · N17932 · Substantial damage
- [NTSB SEA81FYK07](https://openairdocs.org/ntsb/SEA81FYK07.md): Hiller Acft UH-12E · Umpqua, OR · Accident · Serious injuries · Closed · Mar 18, 1981 · N90467 · Substantial damage
- [NTSB LAX81FUJ35](https://openairdocs.org/ntsb/LAX81FUJ35.md): Bobcat 1 · Phoenix, AZ · Accident · Serious injuries · Closed · Feb 18, 1981 · N14TH · Substantial damage
- [NTSB FTW81FRA16](https://openairdocs.org/ntsb/FTW81FRA16.md): Helio Acft H-295 · Liberty, TX · Accident · Serious injuries · Closed · Feb 9, 1981 · N6340V · Destroyed
- [NTSB ATL81IA033](https://openairdocs.org/ntsb/ATL81IA033.md): Mitsubishi MU-2B · Norfolk, VA · Incident · No injuries · Closed · Jan 6, 1981 · N755Q · Minor 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 year(c."eventDate") = 1981
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=99999&year=1981

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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.