# NTSB investigations: CFM International CFM56 series, 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 LAX90IA293](https://openairdocs.org/ntsb/LAX90IA293.md): Boeing 737-322 · Los Angeles, CA · Incident · No injuries · Incident investigation · Final report · Aug 21, 1990 · N305UA · Minor damage
  > Improper maintenance service by a company employee who allowed a foreign object (flashlight) to remain in the landing gear extend/retract linkage during a night servicing before the flight.
- [NTSB DCA90IA048](https://openairdocs.org/ntsb/DCA90IA048.md): Airbus Industrie A320-211 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Aug 10, 1990 · N306US · Minor damage
  > The pilot(s) allowed the aircraft to rotate to an excessive nose high attitude, either during a takeoff or landing.
- [NTSB FTW90LA156](https://openairdocs.org/ntsb/FTW90LA156.md): Boeing B-737-300 · Corpus Christi, TX · Accident · Serious injuries · Limited investigation · Final report · Aug 9, 1990 · N327SW · No damage
  > The airplane's unexpected encounter with clear air turbulence.
- [NTSB MKC90IA070](https://openairdocs.org/ntsb/MKC90IA070.md): Boeing 737-300 · Wichita, KS · Incident · Minor injuries · Incident investigation · Final report · Mar 17, 1990 · N17317 · Minor damage
  > Improper installation of level arm.
- [NTSB LAX90LA122](https://openairdocs.org/ntsb/LAX90LA122.md): Boeing 737-300 · Santa Ana, CA · Accident · No injuries · Limited investigation · Final report · Mar 17, 1990 · N306AW · Substantial damage
  > The pilot's improper rotation during takeoff.
- [NTSB CHI90IA070](https://openairdocs.org/ntsb/CHI90IA070.md): Boeing B737-300 · Cedar Rapids, IA · Incident · No injuries · Incident investigation · Final report · Jan 20, 1990 · N338UA · Minor damage
  > The failure of all four main landing gear tires on takeoff due to the parking brake being locked.

## 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.engine_model_code IN ('13802'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=13802&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.