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

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 CEN22LA354](https://openairdocs.org/ntsb/CEN22LA354.md): Air Tractor AT-301 · Lamoni, IA · Accident · No injuries · Class 3 · Limited · Final report · Aug 1, 2022 · N4326S · Destroyed
  > A loss of airplane performance for reasons that could not be determined.
- [NTSB CEN21LA329](https://openairdocs.org/ntsb/CEN21LA329.md): Grumman Acft ENG Cor-Schweizer G-164B · Amana, IA · Accident · No injuries · Class 3 · Limited · Final report · Jul 19, 2021 · N8422K · Substantial damage
  > The loss of engine power for reasons that could not be determined.
- [NTSB CEN11CA565](https://openairdocs.org/ntsb/CEN11CA565.md): Weatherly 201C · Bronson, IA · Accident · No injuries · Data collection · Final report · Aug 10, 2011 · N9054W · Substantial damage
  > The pilot's failure to maintain clearance from terrain while maneuvering during an aerial application flight.
- [NTSB CEN11CA497](https://openairdocs.org/ntsb/CEN11CA497.md): Grumman Schweizer G-164A · North English, IA · Accident · No injuries · Data collection · Final report · Jul 21, 2011 · N5439 · Substantial damage
  > The pilot's improper flare which resulted in a hard landing.
- [NTSB CHI07CA210](https://openairdocs.org/ntsb/CHI07CA210.md): Boeing A-75N1 · Oelwein, IA · Accident · No injuries · Data collection · Final report · Jul 14, 2007 · N7034Y · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during a landing roll. Factors associated with the accident was the gusty crosswind condition and the corn crop.
- [NTSB CHI06CA225](https://openairdocs.org/ntsb/CHI06CA225.md): Weatherly 620B · Sioux Center, IA · Accident · No injuries · Data collection · Final report · Aug 8, 2006 · N9012P · Substantial damage
  > The pilot's mismanagement of the fuel system which resulted in the loss of engine power due to fuel starvation and his failure to maintain aircraft control during the subsequent forced landing. A factor to the accident was the soybean crop.
- [NTSB CHI05LA214](https://openairdocs.org/ntsb/CHI05LA214.md): Grumman G-164 · Marshalltown, IA · Accident · Minor injuries · Limited investigation · Final report · Aug 7, 2005 · N636U · Substantial damage
  > The loss of engine power for an undetermined reason. A factor was the corn crop.
- [NTSB CHI05LA213](https://openairdocs.org/ntsb/CHI05LA213.md): Weatherly 620-B · Osage, IA · Accident · Serious injuries · Limited investigation · Final report · Aug 6, 2005 · N6305W · Destroyed
  > The partial loss of engine power for an undetermined reason. Contributing factors were the wires and the trees.
- [NTSB CHI04LA220](https://openairdocs.org/ntsb/CHI04LA220.md): Allied Ag Cat Productions G-164B · Moville, IA · Accident · 1 fatal · Limited investigation · Final report · Aug 11, 2004 · N48424 · Destroyed
  > The pilot's inadequate in-flight planning/decision by his failure to maintain obstacle clearance. Contributing factors were low altitude flying and the tree.
- [NTSB CHI90LA206](https://openairdocs.org/ntsb/CHI90LA206.md): Beech D17S · Oelwein, IA · Accident · No injuries · Limited investigation · Final report · Jul 27, 1990 · N480 · Substantial damage
  > Inadequate visual outlook by the pilot in command.
- [NTSB MKC83IA152](https://openairdocs.org/ntsb/MKC83IA152.md): Beech E18S · Cedar Rapids, IA · Incident · No injuries · Incident investigation · Final report · Jul 11, 1983 · N5600D · Minor damage
  > The tailwheel failed to extend fully due to a lack of lubrication. The acft was landed normally and the tailwheel collapsed.
- [NTSB MKC80DA032](https://openairdocs.org/ntsb/MKC80DA032.md): Beech 18S · Cedar Rapids, IA · Accident · No injuries · Closed · Apr 24, 1980 · N166H · Substantial damage
- [NTSB MKC75DCD24](https://openairdocs.org/ntsb/MKC75DCD24.md): Lockheed 12A · Osage, IA · Accident · No injuries · Closed · Nov 21, 1974 · N18137 · Substantial damage
- [NTSB MKC71AK016](https://openairdocs.org/ntsb/MKC71AK016.md): Cessna 337C · Keokuk, IA · Accident · Serious injuries · Closed · Sep 29, 1970 · N2553S · 2 aircraft · Destroyed
- [NTSB MKC70D0143](https://openairdocs.org/ntsb/MKC70D0143.md): Boeing A75 · Hawarden, IA · Accident · No injuries · Closed · Jul 29, 1969 · N54545 · Substantial 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" = 'IA' 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=IA

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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.