# NTSB investigations: Continental W670 series, 1991

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 DEN91LA124](https://openairdocs.org/ntsb/DEN91LA124.md): Boeing A 75N1 · Lordsburg, NM · Accident · No injuries · Limited investigation · Final report · Sep 2, 1991 · N61248 · Substantial damage
  > Unexpected encounter with adverse wind (downdraft).
- [NTSB LAX91LA370](https://openairdocs.org/ntsb/LAX91LA370.md): Waco UPF-7 · Wallace, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 25, 1991 · N30107 · Substantial damage
  > The pilot's failure to properly align his airplane with the runway and his failure to maintain directional control during takeoff. Contributing factors related to the presence of rough and downhill terrain adjacent to the runway.
- [NTSB ATL91LA152](https://openairdocs.org/ntsb/ATL91LA152.md): Waco UPF-7 · Manning, SC · Accident · No injuries · Limited investigation · Final report · Aug 5, 1991 · N29926 · Substantial damage
  > The pilot's failure to maintain directional control during the takeoff roll, and his failure to abort the takeoff in a timely manner once the airplane had departed the runway surface. A factor in the accident was the pilot's failure to utilize the entire…
- [NTSB NYC91LA176](https://openairdocs.org/ntsb/NYC91LA176.md): Waco UPF-7 · Stebensville, PA · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 1991 · N32126 · Substantial damage
  > The pilot's failure to refuel the airplane, his improper fuel consumption calculations, and his failure to flare the airplane during the forced landing.
- [NTSB CHI91LA194](https://openairdocs.org/ntsb/CHI91LA194.md): Boeing A75N1 · Mundelein, IL · Accident · No injuries · Limited investigation · Final report · Jun 16, 1991 · N59791 · 2 aircraft · Substantial damage
  > The pilot in command's not maintaining visual contact with the previously identified airplane.
- [NTSB LAX91LA250](https://openairdocs.org/ntsb/LAX91LA250.md): Eagle DW-1 · Stockton, CA · Accident · Minor injuries · Limited investigation · Final report · Jun 6, 1991 · N8806Y · Destroyed
  > Failure of the pilot to maintain an adequate visual outlook to detect power transmission wires in his flight path resulting in an abrupt maneuver and subsequent inadvertent stall.
- [NTSB FTW91LA087](https://openairdocs.org/ntsb/FTW91LA087.md): Boeing A-75 · Horseshoe Bend, AR · Accident · No injuries · Limited investigation · Final report · May 30, 1991 · N4561N · Substantial damage
  > The pilot's failure to maintain directional control of the airlane. A factor was the crosswind.
- [NTSB MIA91LA147](https://openairdocs.org/ntsb/MIA91LA147.md): Waco UPF-7 · Key West, FL · Accident · No injuries · Limited investigation · Final report · May 15, 1991 · N32133 · Substantial damage
  > A momentary loss of engine power due to undetermined reasons.
- [NTSB SEA91LA102](https://openairdocs.org/ntsb/SEA91LA102.md): Boeing A-75 · Seattle, WA · Accident · Minor injuries · Limited investigation · Final report · May 11, 1991 · N53280 · Substantial damage
  > The pilot did not maintain directional control during the landing roll. The factor to the accident was: the pilot's remedial action was inadequate.
- [NTSB LAX91FA094](https://openairdocs.org/ntsb/LAX91FA094.md): Boeing N2S-3 · Sonoma, CA · Accident · 2 fatal · Field investigation · Final report · Feb 9, 1991 · N1065M · Destroyed
  > The pilot-in-command/cfi's performance of a low altitude aerobatic maneuver from which he failed to recover. Factors which contributed to the accident related to the pic's improper inflight decision, poor judgment, and his psychological condition.

## 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") = 1991
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17018'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17018&year=1991

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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.