NTSB investigations: Pratt & Whitney PT6A series, IL
21 cases on aircraft whose registry engine model is Pratt & Whitney PT6A series. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1977 | 1 |
|---|---|
| 1991 | 1 |
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 1 |
| 2003 | 2 |
| 2004 | 1 |
| 2009 | 1 |
| 2010 | 4 |
| 2013 | 2 |
| 2014 | 1 |
| 2015 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB CEN25LA313Accident · Minor injuriesClass 3 · LimitedPreliminary reportAir Tractor AT-502 · Lawrenceville, ILOn 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 CEN23LA317Accident · No injuriesClass 3 · LimitedFinal reportGrumman G-164A · Patoka, ILA 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 CEN22LA310Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-502B · Wyoming, ILThe pilot’s improper landing flare, which resulted in a hard, bounced landing.NTSB CEN16LA052Accident · No injuriesLimited investigationFinal reportCessna 208B · Chicago, ILThe failure of the driver of the service vehicle to yield to the taxiing airplane, which resulted in a near-collision and tail strike.NTSB CEN14LA349Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-502 · Carthage, ILThe 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 CEN13LA421Accident · No injuriesLimited investigationFinal reportCessna 208B · Chicago, ILThe 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 CEN13LA473Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Nauvoo, ILA fatigue failure of an engine compressor turbine blade, which resulted in extensive secondary engine damage and a complete loss of engine power.NTSB CEN10LA437Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-602 · Yates City, ILThe loss of engine power for undetermined reasons.NTSB CEN10CA343Accident · No injuriesData collectionFinal reportAir Tractor AT-402B · Virden, ILThe 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 OPS10IA155Incident · No injuriesIncident investigationFinal reportEmbraer EMB-135KL · Chicago, ILThe 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 CEN10LA143Accident · No injuriesLimited investigationFinal reportBeech 65-A90 · DeKalb, ILThe 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 CEN09CA323Accident · Minor injuriesData collectionFinal reportAir Tractor AT-502 · Mendota, ILThe pilot's inadequate preflight planning and preparation and his failure to perform an aborted takeoff.NTSB CHI04LA298Accident · No injuriesLimited investigationFinal reportCessna 208B · Decatur, ILThe 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 CHI03LA270Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Hudson, ILThe pilot failed to abort the takeoff. A factor was the soybean crop.NTSB CHI03LA118Accident · 2 fatalLimited investigationFinal reportAir Tractor AT-503A · Pontiac, ILThe 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 CHI03FA041Accident · 1 fatalField investigationFinal reportCessna 208B · Rockford, ILThe 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 CHI01LA167Accident · Serious injuriesLimited investigationFinal reportde Havilland DHC-6 Twin Otter · Ottawa, ILthe failure of the passenger to maintain clearance from the windmilling propeller after exiting the airplane.NTSB CHI01FA084Accident · Minor injuriesField investigationFinal reportBeech 1900D · Chicago, ILThe 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 CHI00LA176Accident · Minor injuriesLimited investigationFinal reportBeech B200 · Joliet, ILthe 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 CHI91LA103Accident · No injuriesLimited investigationFinal reportShort Brothers SD3-60 · Chicago, ILAn excessive landing flare by the copilot. Factors associated with the accident are the inoperative wing flaps and the captain's inadequate supervison.NTSB CHI78FEE14Accident · No injuriesClosedBeech E18 · Chicago, IL