# NTSB investigations: Pratt & Whitney R1340 series, IL

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 CEN25LA283](https://openairdocs.org/ntsb/CEN25LA283.md): Air Tractor AT-301 · Hartsburg, IL · Accident · No injuries · Class 4 · Limited · Final report · Jul 23, 2025 · N2371V · Substantial damage
  > The pilot’s failure to maintain control of the airplane during takeoff with a tailwind from a wet turf airstrip.
- [NTSB GAA18CA401](https://openairdocs.org/ntsb/GAA18CA401.md): Grumman G164 · Rochelle, IL · Accident · No injuries · Data collection · Final report · Jul 5, 2018 · N6795Q · Substantial damage
  > The pilot’s failure to move the power lever to the proper position before takeoff, which resulted in insufficient airspeed and a subsequent aerodynamic stall.
- [NTSB CEN10LA420](https://openairdocs.org/ntsb/CEN10LA420.md): Air Tractor AT-401 · Toulin, IL · Accident · No injuries · Limited investigation · Final report · Jul 21, 2010 · N45297 · Substantial damage
  > A partial loss of engine power as a result of a cracked cylinder and the reduced visibility due to the oil-covered windshield.
- [NTSB CEN09CA535](https://openairdocs.org/ntsb/CEN09CA535.md): Air Tractor AT-301 · Leland, IL · Accident · No injuries · Data collection · Final report · Aug 17, 2009 · N73102 · Substantial damage
  > A total loss of engine power in flight due to a loss of engine oil as a result of the separation of the propeller hub components for undetermined reasons.
- [NTSB CEN09CA514](https://openairdocs.org/ntsb/CEN09CA514.md): Air Tractor AT-301 · DeWitt, IL · Accident · Minor injuries · Data collection · Final report · Aug 10, 2009 · N5018S · Substantial damage
  > The pilot's failure to maintain clearance from the tree during the aerial application maneuver.
- [NTSB CEN09LA355](https://openairdocs.org/ntsb/CEN09LA355.md): Aero Commander S2R · Cordova, IL · Accident · 1 fatal · Limited investigation · Final report · Jun 12, 2009 · N1734S · Destroyed
  > The pilot’s failure to maintain clearance with terrain after clearing an obstacle during an agricultural application pass.
- [NTSB CHI08CA198](https://openairdocs.org/ntsb/CHI08CA198.md): Rockwell S2R · Carthage, IL · Accident · No injuries · Data collection · Final report · Jul 18, 2008 · N8466V · Substantial damage
  > The pilot failed to maintain directional control during the takeoff roll. Contributing to the accident were the uneven runway, the runway edge, and the cornfield.
- [NTSB CHI07CA303](https://openairdocs.org/ntsb/CHI07CA303.md): North American SNJ-5 · Bloomington, IL · Accident · No injuries · Data collection · Final report · Sep 22, 2007 · N11HP · Substantial damage
  > The pilot's failure to maintain directional control during takeoff roll which resulted in a ground loop.
- [NTSB CHI07LA221](https://openairdocs.org/ntsb/CHI07LA221.md): Grumman G-164A · Moline, IL · Accident · Serious injuries · Limited investigation · Final report · Jul 22, 2007 · N9828 · Destroyed
  > Fatigue failure of the engine cylinder during cruise flight resulting in a loss of engine power. Additional causes were the pilot's failure to maintain sufficient airspeed and the resulting inadvertent stall during the forced landing. A contributing factor…
- [NTSB CHI07CA188](https://openairdocs.org/ntsb/CHI07CA188.md): Air Tractor AT-301 · Walkerville, IL · Accident · No injuries · Data collection · Final report · Jun 30, 2007 · N5230S · Destroyed
  > The altitude/clearance not maintained by the pilot during the aerial application flight. The corn was a contributing factor.
- [NTSB CHI02CA224](https://openairdocs.org/ntsb/CHI02CA224.md): Air Tractor AT-301 · Malta, IL · Accident · Minor injuries · Data collection · Final report · Jul 26, 2002 · N2326S · Substantial damage
  > The probable cause of this accident was fuel exhaustion, due to a failure to properly compute initial fuel quantity and/or fuel consumption.
- [NTSB CHI01LA135](https://openairdocs.org/ntsb/CHI01LA135.md): Air Tractor AT-401 · Warsaw, IL · Accident · No injuries · Limited investigation · Final report · May 12, 2001 · N1008Q · Substantial damage
  > the rocker assembly failure during low level maneuvering. Factors were the soft and sandy terrain and the unsuitable terrain the pilot encountered during the forced landing.
- [NTSB CHI99LA268](https://openairdocs.org/ntsb/CHI99LA268.md): Air Tractor AT-401B · Edelstein, IL · Accident · Serious injuries · Limited investigation · Final report · Jul 31, 1999 · N61775 · Substantial damage
  > an inadequate fuel supply which resulted in fuel exhaustion. Factors associated with the accident were the low altitude at which the power loss occurred and the corn crop the airplane contacted.
- [NTSB CHI94LA292](https://openairdocs.org/ntsb/CHI94LA292.md): Grumman G-164A · Clifton, IL · Accident · Minor injuries · Limited investigation · Final report · Aug 23, 1994 · N8971H · Destroyed
  > the pilots failure to keep visual contact with and to avoid unmarked powerlines adjacent to the crop field he was spraying.
- [NTSB CHI90DEE07](https://openairdocs.org/ntsb/CHI90DEE07.md): Schweizer G-164B · Deer Grove, IL · Accident · Minor injuries · Final report · Jun 26, 1990 · N8483K · Substantial damage
  > The pilot's inadequate visual lookout, resulting in collision with a power line.
- [NTSB CHI85LA268](https://openairdocs.org/ntsb/CHI85LA268.md): North American AT-6G · Dixon, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 1985 · N29931 · Substantial damage
  > Reportedly, the plt made a touch-&-go landing while following an snj acft. He stated that during the takeoff, the acft had accelerated to 85 mph when he lowered the tail slightly & the acft lifted off normally. He reported that the acft was aprx 4 to 5 ft off…
- [NTSB CHI80FEV27](https://openairdocs.org/ntsb/CHI80FEV27.md): Grumman G-164B · Atlanta, IL · Accident · No injuries · Closed · Jul 14, 1980 · N6654K · Substantial damage
- [NTSB CHI78DEV24](https://openairdocs.org/ntsb/CHI78DEV24.md): Grumman G-164 · Hudson, IL · Accident · No injuries · Closed · Mar 27, 1978 · N4238 · Substantial damage
- [NTSB CHI77FEE33](https://openairdocs.org/ntsb/CHI77FEE33.md): Boeing E75 · Lockport, IL · Accident · Minor injuries · Closed · Jul 16, 1977 · N4593N · 2 aircraft · Substantial damage
- [NTSB CHI75FEE16](https://openairdocs.org/ntsb/CHI75FEE16.md): Boeing E75 · Streator, IL · Accident · No injuries · Closed · Aug 26, 1974 · N4593N · Substantial damage
- [NTSB CHI74DEV41](https://openairdocs.org/ntsb/CHI74DEV41.md): Grumman G-164A · Ware, IL · Accident · No injuries · Closed · Mar 27, 1974 · N7248 · Substantial damage
- [NTSB CHI69F0010](https://openairdocs.org/ntsb/CHI69F0010.md): N.American AT-6 · Naperville, IL · Accident · Serious injuries · Closed · May 12, 1968 · N2805G · 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" = 'IL' 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 ('52016'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52016&state=IL

---
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.