Final NTSB investigations: Pratt & Whitney PT6A series, 2023
9 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\") = 2023
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") = 2023
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 CEN24LA058Accident · No injuriesClass 4 · LimitedFinal reportPiper PA46-500TP · Ann Arbor, MIThe airplane’s encounter with unexpected wind shear during final approach, which resulted in a hard landing short of the runway.NTSB CEN24FA021Accident · 1 fatalClass 3 · FieldFinal reportAir Tractor AT-502B · Vidalia, LAThe pilot’s failure to maintain clearance from power lines during an aerial application flight. Contributing to the accident was the pilot’s cell phone use and the position of the sun, which reduced the pilot’s ability to perceive the location of the power…NTSB ERA24LA012Accident · No injuriesClass 3 · LimitedFinal reportBeech 300 · Atlanta, GAThe pilot’s failure to maintain a proper approach speed, which resulted in a runway overrun. Contributing to the runway overrun were the pilot’s application of full reverse at an airspeed higher than that allowed by the system, which added power and forward…NTSB WPR23LA333Accident · No injuriesClass 4 · LimitedFinal reportAyres S2R-T34 · Three Rocks, CAThe airplane’s exceedance of the critical angle of attack, resulting in an aerodynamic stall and impact with terrain.NTSB CEN23LA377Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT-502 · Great Bend, NDThe pilot’s hard landing on a road and subsequent loss of control, resulting in the airplane impacting a ditch.NTSB ERA23LA327Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT502 · Leipsic, OHThe incorrect assembly of the turbine engine’s reduction gear box second-stage ring gear, which resulted in an internal failure of multiple engine components and a total loss of power.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 WPR23LA217Accident · Minor injuriesClass 4 · LimitedFinal reportAir Tractor AT-502B · Bakersfield, CAThe pilot’s improper use of flaps during the takeoff sequence which resulted in a runway overrun and collision with trees.NTSB ERA23LA215Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-402A · Good Hope, ALThe pilot’s decision to land on a runway where there was insufficient clearance from obstructions (wheat crop) to operate safely.