# NTSB investigations: Pratt & Whitney JT8D series, 1999

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 NYC99IA231](https://openairdocs.org/ntsb/NYC99IA231.md): McDonnell Douglas MD-88 · Covington, KY · Incident · No injuries · Incident investigation · Final report · Sep 18, 1999 · N947DL · Minor damage
  > Deteriorated wire insulation and shorting at a short radius bend to the electrical wiring in the right side alternate static port heater, which resulted in electrical arcing and a fire sustained by overlaying thermal acoustic insulation.
- [NTSB LAX99IA230](https://openairdocs.org/ntsb/LAX99IA230.md): Boeing DC-9-82 · San Diego, CA · Incident · No injuries · Incident investigation · Final report · Jun 25, 1999 · N450AA · No damage
  > failure of the number three bearing. The resulting oil leak from the bearing led to coke/carbon buildup, which resulted in chafing of the turbine's low-pressure compressor drive shaft on the rear compressor seal tube and subsequent fracture of the drive shaft.
- [NTSB CHI99IA115](https://openairdocs.org/ntsb/CHI99IA115.md): McDonnell Douglas DC-9-14 · Grand Rapids, MI · Incident · No injuries · Incident investigation · Final report · Mar 22, 1999 · N600ME · No damage
  > the frozen elevator control. Factors were the rain and the low temperatures.
- [NTSB DCA99WA049](https://openairdocs.org/ntsb/DCA99WA049.md): Boeing 727-200 · Calgary, Canada · Incident · No injuries · Foreign investigation · Mar 11, 1999 · N8873Z · Minor damage
- [NTSB ATL99LA049](https://openairdocs.org/ntsb/ATL99LA049.md): McDonnell Douglas MD-80 · Raleigh, NC · Accident · Serious injuries · Limited investigation · Final report · Feb 8, 1999 · N433AA · No damage
  > The flight encountered clear air turbulence while descending through 17,000 feet mean sea level (MSL).
- [NTSB ANC99IA027](https://openairdocs.org/ntsb/ANC99IA027.md): McDonnell Douglas MD-82 · Fairbanks, AK · Incident · No injuries · Incident investigation · Final report · Feb 5, 1999 · N934AS · No damage
  > The restricted/delayed movement of the elevator flight control due to extremely cold weather conditions.

## 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") = 1999
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52053', '52377'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52053&year=1999

---
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.