Final NTSB investigations: Pratt & Whitney PT6A series, 1997
22 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
| 1964 | 1 |
|---|---|
| 1969 | 1 |
| 1977 | 1 |
| 1978 | 1 |
| 1980 | 3 |
| 1981 | 1 |
| 1982 | 2 |
| 1983 | 1 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 5 |
| 1988 | 1 |
| 1989 | 2 |
| 1990 | 3 |
| 1991 | 5 |
| 1992 | 6 |
| 1993 | 2 |
| 1994 | 7 |
| 1995 | 10 |
| 1996 | 9 |
| 1997 | 22 |
| 1998 | 13 |
| 1999 | 13 |
| 2000 | 19 |
| 2001 | 24 |
| 2002 | 27 |
| 2003 | 32 |
| 2004 | 24 |
| 2005 | 24 |
| 2006 | 21 |
| 2007 | 28 |
| 2008 | 20 |
| 2009 | 19 |
| 2010 | 17 |
| 2011 | 23 |
| 2012 | 21 |
| 2013 | 20 |
| 2014 | 19 |
| 2015 | 14 |
| 2016 | 24 |
| 2017 | 19 |
| 2018 | 15 |
| 2019 | 16 |
| 2020 | 18 |
| 2021 | 9 |
| 2022 | 11 |
| 2023 | 9 |
| 2024 | 16 |
| 2025 | 5 |
| 2026 | 3 |
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 year(c.\"eventDate\") = 1997
AND c.\"completionStatus\" = 'Completed'
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 year(c."eventDate") = 1997
AND c."completionStatus" = 'Completed'
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 NYC98LA050Accident · No injuriesLimited investigationFinal reportBeech 1900D · Windsor Locks, CTThe inadequate snow removal by airport personnel. Contributing factors were the snowbank and whiteout conditions.NTSB FTW98LA035Accident · No injuriesLimited investigationFinal reportPilatus PC-6 · Lexington, TXthe pilot's selection of an unsuitable landing area. A factor relating to the accident was: the uneven terrain (with swales) at the edge of the landing area.NTSB ANC98IA004Incident · No injuriesIncident investigationFinal reportCessna 208B · Kasigluk, AKinadequate inspection of the aileron by company maintenance personnel, and the pilot's inadequate preflight inspection of the aileron, which led to the jamming of the left aileron due to loose balance weight retaining screws.NTSB NYC98LA013Accident · Minor injuriesLimited investigationFinal reportBeech 1900D · Pittsburgh, PAthe tug driver's failure to obey a stop sign and his failure to yield right-of-way to the airplane.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.NTSB DCA98MA002Accident · 9 fatalMajor investigationFinal reportCessna 208B · Montrose, COthe pilot's failure to maintain sufficient airspeed for undetermined reasons while maneuvering the airplane near the maximum gross weight and aft cg in or near instrument meteorological conditions, resulting in the loss of control and entry into a stall/spin.…NTSB FTW97LA331Accident · No injuriesLimited investigationFinal reportAir Tractor AT-802A · Pineland, TXfailure of the right main wheel brake, during the landing roll. A factor relating to the accident was: the pilot's failure (or inability) to maintain directional control of the airplane, after loss of right braking action.NTSB FTW97LA329Accident · No injuriesLimited investigationFinal reportFairchild Heli-Porter PC6/B2-H2 · Gillette, WYFailure by the pilot in command to follow procedures and retrim the stabilizer for landing.NTSB FTW97FA285Accident · 1 fatalField investigationFinal reportAyres S2R-T15 · Oakridge, LAThe pilot's failure to maintain clearance for undetermined reasons.NTSB LAX97LA250Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Elko, NVThe failure of maintenance personnel to correctly diagnose and correct a reoccurring nose gear steering problem, and the improperly tensioned nose wheel steering actuator cables which provided the pilot with an erroneous cockpit indication that the nose gear…NTSB MIA97LA195Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Tunica, MSThe pilots poor preflight planning preparation for attempting to takeoff with a tailwind and with the hopper loaded 3/4 full during a 93degree F., day at a density altitude of 2,400 feet.NTSB ATL97LA088Accident · No injuriesLimited investigationFinal reportAir Tractor AT-402B · Ridgely, TNThe pilot's inadequate preflight planning in that he failed to account for the high temperature and high density altitude, which resulted in an aerodynamic stall and loss of control. Factors were the tall crops and the ditch.NTSB NYC97IA123Incident · No injuriesIncident investigationFinal reportBeech 1900D · Clarksburg, WVThe right outboard flap detaching from the flap aft roller bearings, at the flap track, which was a result of the manufacturer's inadequate inspection program.NTSB FTW97LA225Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502A · Chesterville, TXan undetermined malfunction/failure of the propeller reversing system.NTSB FTW97LA223Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-400A · Black Oak, ARThe loss of engine power due to compressor turbine blade failure. A factor was the lack of suitable terrain for the forced landing.NTSB FTW97LA196Accident · Minor injuriesLimited investigationFinal reportAyres S2R-T34 · Welsh, LAThe pilot's failure to maintain clearance with a moving vehicle. Factors were: the lack of runway signs and a runway safety area, and the difficulty for the pilot and driver of the vehicle to visually detect each other due to high vegetation at the edge of…NTSB FTW97LA140Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Watson, ARThe pilot's failure to attain lift off speed and the ground loop/swerve encountered. Factors were the gravel and soft terrain at the end of the runway.NTSB LAX97LA125Accident · No injuriesLimited investigationFinal reportCessna 425 · Fresno, CAfailure of the right brake to function, due to the installation mechanic's failure to completely bleed all air from the lines. A factor in the accident was the pilot's decision to fly the unairworthy aircraft before the engine/propeller installation had been…NTSB FTW97LA088Accident · Minor injuriesLimited investigationFinal reportBeech B90 · Longmont, COFailure of the pilot to refuel the airplane, resulting in fuel exhaustion. Factors were the pilot's reference to similar but different aircraft performance charts, and the operator's failure to provide the pilot with the proper performance charts.NTSB NYC97FA045Accident · Minor injuriesField investigationFinal reportBeech 1900D · Bangor, METhe inadequate flight and winter operations training provided by the operator, and the pilot's improper decision to abort the takeoff while airborne above V1, due to a false stall warning horn. Also casual was the airport operations improper decision to…NTSB MIA97GA059Accident · 1 fatalFinal reportAyres S2RHG-T65 · Guaviare, Colombiathe pilot's failure to maintain adequate altitude/clearance while maneuvering at a low altitude.NTSB FTW97LA074Accident · No injuriesLimited investigationFinal reportBeech C90A · Rio Grande City, TXThe pilot's failure to maintain clearance with the tower. Factors were the low ceilings and the pilot's diverted attention to his navigation.