NTSB investigations: Pratt & Whitney PT6A series
18 cases on aircraft whose registry engine model is Pratt & Whitney PT6A series, where the first occurrence was “Loss of control - on ground/water”. 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
| 1982 | 1 |
|---|---|
| 1989 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1998 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 2 |
| 2004 | 2 |
| 2005 | 2 |
| 2006 | 2 |
| 2007 | 2 |
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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52032', '52034')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 260))
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52032', '52034')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 260))
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 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.NTSB CHI07LA246Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Hampton, IAThe pilot's failure to maintain directional control during landing. Contributing to the accident was a ditch.NTSB DEN07LA030Accident · No injuriesLimited investigationFinal reportPiper PA-46-500TP · Steamboat Springs, COThe inadequate design of the engine mount, which caused an uncommanded left turn, loss of directional control, and impact with snow-covered terrain. Contributing to the accident was the low nose gear tire pressure.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.NTSB ANC06CA012Accident · No injuriesData collectionFinal reportCessna 208 · Brevig Mission, AKThe pilot's inadequate compensation for crosswind conditions, which resulted in the left wing striking the ground while taxiing. A factor in the accident was a crosswind.NTSB ANC06CA011Accident · No injuriesData collectionFinal reportCessna 208B · Newtok, AKThe pilot's inadequate compensation for gusting crosswind conditions, which resulted in the airplane exiting the runway, encountering snow, and the nose gear collapsing. Factors associated with the accident were the gusting wind and the icy runway.NTSB FTW04CA139Accident · No injuriesData collectionFinal reportAir Tractor AT-402 · Beedeville, ARThe pilot's failure to maintain directional control of the airplane during landing roll-out. Contributing factors were the crosswind and condition of the the runway.NTSB ANC04LA032Accident · No injuriesLimited investigationFinal reportCessna 208B · Toksook Bay, AKThe pilot's inadequate planning and decision to initiate a takeoff into a crosswind that exceeded the airplane's demonstrated crosswind component, which resulted in a loss of directional control during the takeoff roll, and subsequent collision with terrain…NTSB LAX02LA147Accident · No injuriesLimited investigationFinal reportAir Tractor AT-802A · Kingman, AZThe failure of the pilot to maintain directional control during landing.NTSB NYC02LA069Accident · No injuriesLimited investigationFinal reportPiper P46T · Philadelphia, PAThe pilot's improper recovery from a bounced landing. A factor was the pilot's failure to flare during initial touchdown.NTSB SEA01LA139Accident · No injuriesLimited investigationFinal reportPilatus PC-6/B2-H4 · Great Falls, MTPilot's failure to maintain directional control of the aircraft while landing.NTSB CHI00FA071Accident · No injuriesField investigationFinal reportBeech 1900D · Escanaba, MIthe failure of the flightcrew to maintain directional control due to unsafe/hazardous conditions on the runway that was not relayed to them. Factors were the uneven snow covered runway and the snowbank.NTSB CHI98LA243Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-502 · Minto, NDthe pilot's selection of unsuitable terrain for takeoff. Factors were wet and soft runway conditions, and a ditch and the end of the overrun area.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 LAX96LA328Accident · No injuriesLimited investigationFinal reportCessna 425 · Auburn, CAfailure of the right brake system (master cylinder O-ring seal). Factors relating to the accident were: the narrow runway, and the presence of a ditch adjacent to the runway.NTSB MIA95LA173Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Belzoni, MSInadequate compensation for wind conditions by the pilot. The gusty crosswind was a factor.NTSB MKC90LA023Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-502 · Heafer, ARThe intentional swerve by the pilot during the takeoff roll. Contributing to the accident was the rough and soft terrain conditions.NTSB FTW82DA301Accident · No injuriesFinal reportBeech B99A · Abilene, TXThe pilot was in the left seat and was getting a check ride from the chief pilot who was in the right seat. After making a series of touch-and-go landings, the aircraft pulled slightly to the left during a takeoff. A full pattern was then flown to runway 17R…