# NTSB investigations: Pratt & Whitney R-985 series, IN

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 CHI93LA373](https://openairdocs.org/ntsb/CHI93LA373.md): Beech 18-C45G · Jeffersonville, IN · Accident · No injuries · Limited investigation · Final report · Sep 20, 1993 · N80323 · Substantial damage
  > the mechanical binding of the landing gear extension mechanism.
- [NTSB CHI89DEX06](https://openairdocs.org/ntsb/CHI89DEX06.md): Grumman G-164A · Sullivan, IN · Accident · No injuries · Final report · Aug 2, 1989 · N952X · Substantial damage
  > A failure of the supercharger oil seal which resulted in a partial loss of engine power during takeoff and the uncontrolled touchdown during the forced landing. Factors related to the accident were: partial failure of the supercharger and spark plub fowling.
- [NTSB CHI87DEX07](https://openairdocs.org/ntsb/CHI87DEX07.md): Boeing E75 · Mccordsville, IN · Accident · Serious injuries · Final report · Jun 19, 1987 · N550LR · Destroyed
  > During initial climb the engine sustained a total power failure and the pilot attempted to return to the airport. The aircraft impacted in a soybean field approximately 200 feet short of the runway in a 20 degree nose down attitude. Investigation revealed the…
- [NTSB CHI83LA093](https://openairdocs.org/ntsb/CHI83LA093.md): Beech D18S · Plymouth, IN · Accident · No injuries · Limited investigation · Final report · Jan 28, 1983 · N113B · Substantial damage
  > Pilot landed the aircraft with the landing gear up. He said he put the gear selector down but after landing the lever was up. He also mistook gear up warning horn for a stall warning. No malfunctions were reported.
- [NTSB CHI81DEV35](https://openairdocs.org/ntsb/CHI81DEV35.md): Grumman G-164A · Dana, IN · Accident · Minor injuries · Closed · Sep 23, 1981 · N9968 · Destroyed
- [NTSB CHI80FET24](https://openairdocs.org/ntsb/CHI80FET24.md): Grumman G-164 · Howe, IN · Accident · No injuries · Closed · Aug 15, 1980 · N48348 · Substantial damage
- [NTSB CHI79FEX09](https://openairdocs.org/ntsb/CHI79FEX09.md): Beechcraft E18S · Indianapolis, IN · Accident · No injuries · Closed · Dec 7, 1978 · N46952 · Substantial damage
- [NTSB CHI78FEX34](https://openairdocs.org/ntsb/CHI78FEX34.md): Grumman G-164B · Kokomo, IN · Accident · No injuries · Closed · Aug 24, 1978 · N6532K · Destroyed
- [NTSB CHI77DEX40](https://openairdocs.org/ntsb/CHI77DEX40.md): Stearman PT-17 · Converse, IN · Accident · No injuries · Closed · Jul 13, 1977 · N52014 · Substantial damage
- [NTSB CHI77DET19](https://openairdocs.org/ntsb/CHI77DET19.md): Grumman G-164A · Hebron, IN · Accident · No injuries · Closed · Jun 24, 1977 · N930X · Substantial damage
- [NTSB CHI72FEA01](https://openairdocs.org/ntsb/CHI72FEA01.md): Boeing A75N1 · Greensburg, IN · Accident · No injuries · Closed · Jul 8, 1971 · N49954 · Substantial damage
- [NTSB CHI66F0308](https://openairdocs.org/ntsb/CHI66F0308.md): Beechcraft C-18S · Jamestown, IN · Accident · No injuries · Closed · Sep 8, 1965 · N4723C · Substantial damage
- [NTSB UNK64X3867](https://openairdocs.org/ntsb/UNK64X3867.md): Beechcraft C18 · Brownsburg, IN · Accident · No injuries · Closed · Sep 7, 1964 · N44569 · 2 aircraft · 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" = 'IN' 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 ('52008'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52008&state=IN

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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.