# NTSB investigations: Pratt & Whitney PT6A 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 CEN25LA313](https://openairdocs.org/ntsb/CEN25LA313.md): Air Tractor AT-502 · Lawrenceville, IL · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Aug 10, 2025 · N9193V · Substantial damage
  > On August 10, 2025, about 1321 central daylight time, an Air Tractor AT-502, was substantially damaged when it was involved in an accident near Lawrenceville, Illinois. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of…
- [NTSB CEN23LA317](https://openairdocs.org/ntsb/CEN23LA317.md): Grumman G-164A · Patoka, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 22, 2023 · N9892 · Substantial damage
  > A partial loss of engine power due to the failure of two compressor turbine blades as a result of the engine operating near or above the engine’s operating limits for an undetermined amount of time beyond the recommended engine’s TBO limit, which led to…
- [NTSB CEN22LA310](https://openairdocs.org/ntsb/CEN22LA310.md): Air Tractor AT-502B · Wyoming, IL · Accident · No injuries · Class 4 · Limited · Final report · Jul 10, 2022 · N205SK · Substantial damage
  > The pilot’s improper landing flare, which resulted in a hard, bounced landing.
- [NTSB CEN16LA052](https://openairdocs.org/ntsb/CEN16LA052.md): Cessna 208B · Chicago, IL · Accident · No injuries · Limited investigation · Final report · Nov 3, 2015 · N732MD · Substantial damage
  > The failure of the driver of the service vehicle to yield to the taxiing airplane, which resulted in a near-collision and tail strike.
- [NTSB CEN14LA349](https://openairdocs.org/ntsb/CEN14LA349.md): Air Tractor AT-502 · Carthage, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 7, 2014 · N9185G · Substantial damage
  > The airplane’s inability to climb out of ground effect, which resulted from the pilot using a lower power setting than needed for takeoff due to the mechanic’s installation of the wrong engine torque gauge.
- [NTSB CEN13LA421](https://openairdocs.org/ntsb/CEN13LA421.md): Cessna 208B · Chicago, IL · Accident · No injuries · Limited investigation · Final report · Jul 17, 2013 · N732MD · Substantial damage
  > The gate agent’s premature removal of the tailstand without confirming with the flight crew that it was safe to remove, which allowed the airplane to tilt backward when a passenger stood up and stepped toward the back of the airplane.
- [NTSB CEN13LA473](https://openairdocs.org/ntsb/CEN13LA473.md): Air Tractor AT-502B · Nauvoo, IL · Accident · No injuries · Limited investigation · Final report · Jul 15, 2013 · N6113C · Substantial damage
  > A fatigue failure of an engine compressor turbine blade, which resulted in extensive secondary engine damage and a complete loss of engine power.
- [NTSB CEN10LA437](https://openairdocs.org/ntsb/CEN10LA437.md): Air Tractor AT-602 · Yates City, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 25, 2010 · N8521L · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN10CA343](https://openairdocs.org/ntsb/CEN10CA343.md): Air Tractor AT-402B · Virden, IL · Accident · No injuries · Data collection · Final report · Jun 19, 2010 · N5120E · Substantial damage
  > The pilot's decision to take off from a wet grass runway at an airplane weight and density altitude that precluded a normal takeoff and climb.
- [NTSB OPS10IA155](https://openairdocs.org/ntsb/OPS10IA155.md): Embraer EMB-135KL · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Apr 22, 2010 · N806AE · 2 aircraft · No damage
  > The air traffic controller's issuance of an improper takeoff clearance to the pilot of the Embraer. Contributing to the incident was the instructor’s inadequate monitoring of the trainee local controller.
- [NTSB CEN10LA143](https://openairdocs.org/ntsb/CEN10LA143.md): Beech 65-A90 · DeKalb, IL · Accident · No injuries · Limited investigation · Final report · Mar 2, 2010 · N129LA · Substantial damage
  > The collapse of the landing gear during landing due to the company's improper maintenance practices and the pilot's decision to take off with an overextended landing gear strut.
- [NTSB CEN09CA323](https://openairdocs.org/ntsb/CEN09CA323.md): Air Tractor AT-502 · Mendota, IL · Accident · Minor injuries · Data collection · Final report · May 29, 2009 · N198LA · Substantial damage
  > The pilot's inadequate preflight planning and preparation and his failure to perform an aborted takeoff.
- [NTSB CHI04LA298](https://openairdocs.org/ntsb/CHI04LA298.md): Cessna 208B · Decatur, IL · Accident · No injuries · Limited investigation · Final report · Sep 29, 2004 · N276PM · Substantial damage
  > The pilot's inadequate preflight preparation, and his subsequent selection of a runway for takeoff that was listed as out of service, resulting in a collision with barricades and uneven terrain during takeoff.
- [NTSB CHI03LA270](https://openairdocs.org/ntsb/CHI03LA270.md): Air Tractor AT-502 · Hudson, IL · Accident · No injuries · Limited investigation · Final report · Aug 15, 2003 · N9187Z · Substantial damage
  > The pilot failed to abort the takeoff. A factor was the soybean crop.
- [NTSB CHI03LA118](https://openairdocs.org/ntsb/CHI03LA118.md): Air Tractor AT-503A · Pontiac, IL · Accident · 2 fatal · Limited investigation · Final report · May 5, 2003 · N503D · Substantial damage
  > The pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall/spin. A factor associated with the accident was the low altitude maneuver.
- [NTSB CHI03FA041](https://openairdocs.org/ntsb/CHI03FA041.md): Cessna 208B · Rockford, IL · Accident · 1 fatal · Field investigation · Final report · Dec 18, 2002 · N277PM · Destroyed
  > The pilot's failure to maintain control of the airplane during the ILS approach. Factors associated with the accident were the low ceilings, high winds, crosswind, and wind shear conditions that existed.
- [NTSB CHI01LA167](https://openairdocs.org/ntsb/CHI01LA167.md): de Havilland DHC-6 Twin Otter · Ottawa, IL · Accident · Serious injuries · Limited investigation · Final report · Jun 16, 2001 · N30EA · Minor damage
  > the failure of the passenger to maintain clearance from the windmilling propeller after exiting the airplane.
- [NTSB CHI01FA084](https://openairdocs.org/ntsb/CHI01FA084.md): Beech 1900D · Chicago, IL · Accident · Minor injuries · Field investigation · Final report · Feb 10, 2001 · N97UX · Substantial damage
  > The flightcrew not lowering the landing gear and/or verifying the landing gear position as required by three separate checklists, which resulted in an inadvertent gear-up landing. A factor to the accident was the flightcrew not complying with the required…
- [NTSB CHI00LA176](https://openairdocs.org/ntsb/CHI00LA176.md): Beech B200 · Joliet, IL · Accident · Minor injuries · Limited investigation · Final report · Jun 29, 2000 · N780CA · Substantial damage
  > the failure of the pilot to obtain fuel and the inadequate preflight planning and preparation by the pilot. Factors to the accident were the fuel exhaustion and the ravine at the end of the runway.
- [NTSB CHI91LA103](https://openairdocs.org/ntsb/CHI91LA103.md): Short Brothers SD3-60 · Chicago, IL · Accident · No injuries · Limited investigation · Final report · Mar 2, 1991 · N385MQ · Substantial damage
  > An excessive landing flare by the copilot. Factors associated with the accident are the inoperative wing flaps and the captain's inadequate supervison.
- [NTSB CHI78FEE14](https://openairdocs.org/ntsb/CHI78FEE14.md): Beech E18 · Chicago, IL · Accident · No injuries · Closed · Dec 22, 1977 · N202GW · 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 ('52032', '52034'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52032&state=IL

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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.