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NTSB investigations: Pratt & Whitney PT6A series, AZ

23 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19782026

Where

Latest cases

Query with 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" = 'AZ' 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

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\" = 'AZ' 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" = 'AZ' 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

Run 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 WPR17LA207Accident · No injuriesLimited investigationFinal reportCessna 208B · Sedona, AZThe pilot's failure to maintain clearance from a light pole while taxiing.Sep 16, 2017 · N786WW · Substantial damage NTSB WPR11LA245Accident · No injuriesLimited investigationFinal reportPiper PA-46-310P · Lake Havasu, AZThe failure of the low pressure switch in the normal landing gear system, which prevented normal operation of that system, and the misrigging of the emergency extension gear release valve, which prevented the system from being depressurized to allow for the…Jun 2, 2011 · N712MK · Substantial damage NTSB OPS10IA015Incident · No injuriesIncident investigationFinal reportCessna 208B · Phoenix, AZThe Cessna 208 pilot’s failure to identify the correct landing runway.Mar 20, 2010 · N992FE · 2 aircraft · No damage NTSB WPR10IA045Incident · Minor injuriesIncident investigationFinal reportBeech C-99 · Show Low, AZAn in-flight collision with a bird during initial descent.Nov 4, 2009 · N330AV · Minor damage NTSB SEA08IA096Incident · No injuriesIncident investigationFinal reportRaytheon 1900D · Page, AZThe flight crew’s unprofessional behavior and deviation from standard operating procedures which resulted in an in-flight emergency.Mar 26, 2008 · N261GL · Minor damage NTSB SEA08LA082Accident · Serious injuriesLimited investigationFinal reportRaytheon 1900D · Kayenta, AZThe flight crew's failure to execute a missed approach, which resulted in a runway excursion after landing. Contributing to the accident were the inoperative lights, weather conditions below published approach minimums, and the slush contaminated runway.Feb 22, 2008 · N305PC · Substantial damage NTSB SEA07CA244Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Salome, AZThe pilot's inadequate compensation for the tailwind condition and failure to maintain directional control during the takeoff roll/run, which resulted in a ground loop.Aug 30, 2007 · N8521Z · Substantial damage NTSB LAX07FA012Accident · 5 fatalField investigationFinal reportPiper PA-42 · Prescott, AZThe failure of the pilot following a jet aircraft to maintain adequate separation from the high velocity jet core exhaust. The separation of the T-tail upper section vertical stabilizer of the following aircraft due to contact with the high velocity jet core…Oct 18, 2006 · N121CS · Destroyed NTSB LAX06CA142Accident · No injuriesData collectionFinal reportAir Tractor 502A · Stanfield, AZthe pilot's inadequate compensation for the wind conditions and failure to maintain directional control during the landing roll.Apr 12, 2006 · N1539X · Substantial damage NTSB LAX05LA244Accident · Minor injuriesLimited investigationFinal reportCessna 208B · Globe, AZThe fatigue failure of the compressor turbine stator vane, the liberation of vane material into the compressor turbine, and the total loss of engine power. Also causal was the operator's failure to inspect the compressor turbine vane during fuel nozzle checks.Jul 22, 2005 · N717BT · Substantial damage NTSB LAX05LA203Accident · Serious injuriesLimited investigationFinal reportBeech C90 · Marble Canyon, AZthe pilot's failure to maintain an adequate airspeed while maneuvering during a go-around, which resulted in a stall.Jun 13, 2005 · N49LL · Substantial damage NTSB LAX04LA043Accident · No injuriesLimited investigationFinal reportCessna 208B · Phoenix, AZthe pilot's improper decision to taxi behind another airplane conducting an engine run-up, which resulted in a jet blast encounter.Nov 13, 2003 · N717BT · Substantial damage NTSB LAX03LA122Accident · No injuriesLimited investigationFinal reportAyres S2R-T34 · Avondale, AZThe pilot failed to maintain adequate visual lookout and did not maintain clearance from power lines. The backhoe's location, which caused the pilot to alter his planned flight path, was a factor.Apr 1, 2003 · N30913 · Substantial damage NTSB DEN03FA012Accident · 4 fatalField investigationFinal reportCessna 208B · Parks, AZthe pilot's improper in flight planning/decision making, his flight into known icing conditions, and his failure to maintain adequate airspeed which resulted in the inadvertent stall/spin and impact with terrain. Factors contributing to the accident were the…Nov 8, 2002 · N514DB · Destroyed NTSB LAX02LA240Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-502 · San Manuel, AZthe pilot's failure to maintain adequate airspeed while maneuvering in a box canyon, which resulted in a stall/mush. A factor in the accident was downdraft conditions that led to an uncontrolled decent.Jul 27, 2002 · N293JK · Substantial damage NTSB LAX02LA147Accident · No injuriesLimited investigationFinal reportAir Tractor AT-802A · Kingman, AZThe failure of the pilot to maintain directional control during landing.May 2, 2002 · N90802 · Substantial damage NTSB LAX01LA114Accident · No injuriesLimited investigationFinal reportAir Tractor AT-802 A · Maricopa, AZInadequate selection of landing facilities and improper placement of vehicles near the runway. An additional factor was the use of a runway which resulted in a downwind landing.Mar 10, 2001 · N6059L · Substantial damage NTSB LAX00FA169Accident · 1 fatalField investigationFinal reportAir Tractor 502A · Queen Creek, AZThe fatigue failure and in-flight separation of the left wing due to the manufacturer's underestimation during the aircraft design process of the time interval from fatigue crack initiation to failure, and, the manufacturer's subsequent specification of an…Apr 22, 2000 · N15466 · Destroyed NTSB LAX98FA013Accident · No injuriesField investigationFinal reportBeech 99-C99 · Meadview, AZThe pilot's inadequate in-flight decision, inadequate visual lookout, and his failure to maintain adequate obstacle clearance. Contributing was low altitude flight.Oct 15, 1997 · N227AV · Substantial damage NTSB LAX95LA283Accident · No injuriesLimited investigationFinal reportPZL-Mielec PZL-M-18 · Sacaton, AZThe loss of engine power due to a decoupling of the accessory drive that runs the high pressure engine-driven fuel pump.Aug 9, 1995 · N6657C · Substantial damage NTSB LAX92LA133Accident · Minor injuriesLimited investigationFinal reportHelio HST-550A · Salome, AZThe pilot's inadequate in-flight planning, improper altitude, and delaying the required remedial action to prevent the collision with the mountain. Contributing to the accident was the unfavorable wind and downdraft conditions.Mar 1, 1992 · N550HZ · Destroyed NTSB LAX87LA250Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Grand Canyon, AZWhile taxiing for takeoff, the underside of the left wing struck the boom of a backhoe parked adjacent to the aircraft ramp. The unattended backhoe was parked in a dirt area adjacent to the ramp with the boom in the extended position while the operator was on…Jun 29, 1987 · N74GC · Substantial damage NTSB LAX78DUJ99Accident · No injuriesClosedAero Comdr S2R · Gila Bend, AZAug 27, 1978 · N5052X · Destroyed