# NTSB investigations: Pratt & Whitney JT8D series: Loss of engine power(total) - mech failure/malf

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 CHI01IA211](https://openairdocs.org/ntsb/CHI01IA211.md): McDonnell Douglas MD-83 · Whiteman AFB, MO · Incident · No injuries · Incident investigation · Final report · Jul 12, 2001 · N9413T · Minor damage
  > The separation of a fan blade due to fatigue failure which led to case separation and loss of engine power in the left engine.
- [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 LAX97IA170](https://openairdocs.org/ntsb/LAX97IA170.md): McDonnell Douglas MD-82 · Tucson, AZ · Incident · No injuries · Incident investigation · Final report · Apr 28, 1997 · N470AA · Minor damage
  > an undetermined failure in the #1 (left) engine turbine assembly, which resulted in a fracture of the first stage nozzle guide vane (NGV) and subsequent damage to the turbine blades.
- [NTSB DCA96MA068](https://openairdocs.org/ntsb/DCA96MA068.md): McDonnell Douglas MD-88 · Pensacola, FL · Accident · 2 fatal · Class 1 · Major · Final report · Jul 6, 1996 · N927DA · Substantial damage
  > the fracture of the left engine's front compressor fan hub, which resulted from the failure of Delta Air Lines' fluorescent penetrant inspection process to detect a detectable fatigue crack initiating from an area of altered microstructure that was created…
- [NTSB CHI87IA100](https://openairdocs.org/ntsb/CHI87IA100.md): Mcdonnell Douglas DC-9-82 · Minneapolis, MN · Incident · No injuries · Incident investigation · Final report · Mar 23, 1987 · N409AA · Minor damage
  > The aircraft landed uneventfully after the right engine failed during a descent. The shutdown occurred after failed antirotation pins allowed gas loads to drive normally stationary third stage vane clusters in the low pressure turbine area. Rotation of the…
- [NTSB LAX84IA195](https://openairdocs.org/ntsb/LAX84IA195.md): Mcdonnell Douglas DC-9-82 · Santa Ana, CA · Incident · No injuries · Incident investigation · Final report · Feb 17, 1984 · N203AA · No damage
  > Shortly after takeoff a ttl pwr loss was experienced on the number 1 engine. Examination of the engine revealed substantial damage occurred in the compressor section from stage 6 rearward. 40 stage 8 compressor blades were forced completely out of their disk…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52053', '52377')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 351))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52053&occurrence=351

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