# Major NTSB investigations: Pratt & Whitney JT8D-9 series

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 CHI05MA111](https://openairdocs.org/ntsb/CHI05MA111.md): McDonnell Douglas DC-9-51 · Minneapolis, MN · Accident · Serious injuries · Major investigation · Final report · May 11, 2005 · N763NC · 2 aircraft · Substantial damage
  > the Captain of the other aircraft's decision to shutdown the left engine during taxi with no hydraulic pressure on the right side hydraulic system to effectively operate the brakes, steering, or thrust reversers. A factor was the fatigue fracture of the…
- [NTSB DCA90MA017](https://openairdocs.org/ntsb/DCA90MA017.md): Beech A100 · Atlanta, GA · Accident · 1 fatal · Class 1 · Major · Final report · Jan 19, 1990 · N44UE · 2 aircraft · Destroyed
  > (1) Failure of the federal aviation administration to provide air traffic control procedures that adequately take into consideration human performance factors such as those which resulted in the failure of the north local controller to detect the developing…
- [NTSB DCA89MA035](https://openairdocs.org/ntsb/DCA89MA035.md): McDonnell Douglas DC-9-33F · Saginaw, TX · Accident · 2 fatal · Class 1 · Major · Final report · Mar 18, 1989 · N931F · Destroyed
  > The loss of control of the airplane for undetermined reasons following the inflight opening of the improperly latched cargo door. Contributing to the accident were: inadequate procedures used by evergreen airlines and approved by the FAA for preflight…
- [NTSB CHI89MA046](https://openairdocs.org/ntsb/CHI89MA046.md): Boeing 737-201 · Chicago, IL · Accident · No injuries · Major investigation · Final report · Jan 20, 1989 · N242US · Substantial damage
  > Previous damage to the aft cone (engine mounting) bolt, which resulted in mismatched surfaces between the bolt and isolation mount, loss of torque during cyclic loading of the mounting bolt, and subsequent fatigue failure of the bolt.
- [NTSB CHI86MA142](https://openairdocs.org/ntsb/CHI86MA142.md): Mcdonnell Douglas DC-9-31 · Chicago, IL · Incident · No injuries · Major investigation · Final report · May 17, 1986 · N973VJ · 2 aircraft · Minor damage
  > U.S. Air flight 373 passed over American airlines flight 695 at the intersection of runways 32R and 4L while both aircraft were taking off. Both aircraft had been cleared for takeoff by the local controller at o'hare tower. The aircraft came within twenty…
- [NTSB DCA79AA009](https://openairdocs.org/ntsb/DCA79AA009.md): Boeing 747 · Chicago, IL · Accident · No injuries · Closed · Feb 15, 1979 · N804FT · 2 aircraft · Substantial damage
- [NTSB LAX77AA048](https://openairdocs.org/ntsb/LAX77AA048.md): Boeing 727 · Tucson, AZ · Accident · No injuries · Closed · Jun 3, 1977 · N32725 · 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.board_report_url IS NOT NULL OR c."investigationClass" = 'Class 1' OR c."caseType" = 'Major - Launch')
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52048'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52048&major=1

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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.