# NTSB investigations: Pratt & Whitney JT8D-9 series, IL

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 CHI00IA009](https://openairdocs.org/ntsb/CHI00IA009.md): McDonnell Douglas DC-9-51 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Oct 14, 1999 · N766NC · No damage
  > The landing gear's wheel separation due to the improper installation of the wheel by company maintenance personnel using incomplete maintenance steps, and the maintenance steps not listed in the manufacturer's manual. Factors were the airport perimeter wall…
- [NTSB CHI93LA043](https://openairdocs.org/ntsb/CHI93LA043.md): Boeing 727-232 · Chicago, IL · Accident · Serious injuries · Limited investigation · Final report · Nov 28, 1992 · N401DA · No damage
  > The captain's inadequate coordination with the ground and flight crew. Factors related to the accident were: the passenger's perception that the APU exhaust was a fire, which resulted in action that initiated an evacuation.
- [NTSB CHI90IA166](https://openairdocs.org/ntsb/CHI90IA166.md): Mcdonnell Douglas DC-9-32 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Jun 29, 1990 · N948ML · No damage
  > The pilot-in-command's inadequate weather evaluation. Factors in the incident were the weather and artcc's failure to issue a weather advisory.
- [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 CHI83FA251](https://openairdocs.org/ntsb/CHI83FA251.md): Boeing 727-222A · Chicago, IL · Accident · Serious injuries · Field investigation · Final report · Jun 11, 1983 · N7273U · Substantial damage
  > During the takeoff roll, the #1 eng failed & the takeoff was aborted at aprx 70 KTS. The aircrew taxied the acft clear of the rwy & stopped on the reverse high speed turnoff. The aircrew of another company acft transmitted that the #1 eng was on fire. There…
- [NTSB CHI79FI070](https://openairdocs.org/ntsb/CHI79FI070.md): Douglas DC-9 · Chicago, IL · Incident · No injuries · Closed · Aug 30, 1979 · N772NC · Minor damage
- [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 CHI72AC034](https://openairdocs.org/ntsb/CHI72AC034.md): Douglas DC-9 · Chicago, IL · Accident · No injuries · Closed · Oct 9, 1971 · N3308L · 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 c."eventStateOrRegion" = 'IL' AND c."eventCountry" = 'USA'
  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&state=IL

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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.