NTSB investigations: Pratt & Whitney PT6A series, 1991
5 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 | 9 |
| 1995 | 10 |
| 1996 | 10 |
| 1997 | 23 |
| 1998 | 14 |
| 1999 | 16 |
| 2000 | 20 |
| 2001 | 24 |
| 2002 | 28 |
| 2003 | 34 |
| 2004 | 26 |
| 2005 | 25 |
| 2006 | 21 |
| 2007 | 32 |
| 2008 | 22 |
| 2009 | 19 |
| 2010 | 18 |
| 2011 | 23 |
| 2012 | 21 |
| 2013 | 20 |
| 2014 | 20 |
| 2015 | 15 |
| 2016 | 25 |
| 2017 | 19 |
| 2018 | 15 |
| 2019 | 17 |
| 2020 | 19 |
| 2021 | 9 |
| 2022 | 12 |
| 2023 | 10 |
| 2024 | 18 |
| 2025 | 11 |
| 2026 | 8 |
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\") = 1991
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") = 1991
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 ANC91FA142Accident · No injuriesField investigationFinal reportCessna 208 · Dillingham, AKThe pilot's inattentive preflight inspection which resulted in his failure to properly secure the engine oil tube filler cap resulting in the loss of engine oil and oil pressure and the pilot's failure to properly compensate for wind conditions during the…NTSB FTW91DRG04Accident · Serious injuriesFinal reportAir Tractor AT-402 · Taft, TXThe pilot's failure to maintain proper terrain clearance.NTSB CHI91DER07Accident · No injuriesFinal reportPiper PA-36-375 · Breckentidge, MNThe pilot's failure to take adequate remedial action during the attempted climb out. A related factor is the premature lift off.NTSB MIA91IA117Incident · No injuriesIncident investigationFinal reportEmbraer EMB-110P1 · Ochopee, FLFailure of the student to use the checklist, inadequate supervision by the pic/cfi, and inadequate supervision by the FAA principle operations inspector.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.