# NTSB investigations: Pratt & Whitney JT9D-3A, 1988

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 DCA88IA044](https://openairdocs.org/ntsb/DCA88IA044.md): Mcdonnell Douglas DC-10-40 · Boston, MA · Incident · No injuries · Incident investigation · Final report · Mar 30, 1988 · N154US · Minor damage
  > The improper installation of the battery ground connection that resulted in premature loosening of the connection and electrical arc ignition of pooled fuel in the cac bilge. The fuel was not drained overboard due to inoperative cac bilge area drain valves.…
- [NTSB CHI88IA073](https://openairdocs.org/ntsb/CHI88IA073.md): Boeing 747-227B · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Feb 19, 1988 · N635US · 2 aircraft · No damage
  > Failure of the tower cab supervisor to assure that coordination between the south local controller and north local controller had been completed. A factor is the failure of FAA tower management to insure there were personnel manning the cab coordinator…
- [NTSB CHI88IA040](https://openairdocs.org/ntsb/CHI88IA040.md): Boeing 747-251F · Minneapolis, MN · Incident · No injuries · Incident investigation · Final report · Jan 9, 1988 · N618US · No damage
  > Aircraft experienced a loss of aileron ctl when ice formed around aileron control cables and restricted their movement. Water draining through open plenum drains in the main landing gear wheel well froze when exposed to below freezing temperatures at 35,000…

## 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") = 1988
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52050'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52050&year=1988

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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.