NTSB investigations: Pratt & Whitney PT6A series
47 cases on aircraft whose registry engine model is Pratt & Whitney PT6A series, where the first occurrence was “In flight collision with object”. 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 |
|---|---|
| 1987 | 1 |
| 1990 | 1 |
| 1992 | 1 |
| 1994 | 3 |
| 1996 | 2 |
| 1997 | 5 |
| 1998 | 3 |
| 1999 | 3 |
| 2000 | 4 |
| 2001 | 4 |
| 2002 | 3 |
| 2003 | 3 |
| 2004 | 4 |
| 2005 | 3 |
| 2006 | 2 |
| 2007 | 4 |
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\" = 220))
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" = 220))
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 ANC07FA073Accident · 4 fatalField investigationFinal reportPiper PA-46-350P · Sitka, AKThe pilot's failure to maintain altitude/distance from obstacles during an IFR circling approach, and his failure to follow the instrument approach procedure. Contributing to the accident was clouds.NTSB DFW07CA123Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Banquete, TXThe pilot's failure to maintain clearance from the power transmission line(s). A contributing factor was the low altitude selected by the pilot.NTSB CHI07LA147Accident · 1 fatalLimited investigationFinal reportThrush S2RHG-T65 · Tyndall, SDThe pilot not maintaining altitude/clearance from a powerline while maneuvering. A factor was the low visibility associated with the thunderstorm and the powerlines.NTSB CHI07FA068Accident · Serious injuriesField investigationFinal reportCessna 208B · Alliance, NEThe pilot's descent below minimum descent altitude while on a nonprecision approach. A contributing factor was a low ceiling.NTSB ATL07CA011Accident · No injuriesData collectionFinal reportAir Tractor AT-802A · Linden, ALThe pilot's attempt to takeoff downwind resulting in the airplane not clearing trees at the end of the runway.NTSB DFW06CA182Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Marvell, ARThe pilot's failure to maintain clearance with terrain during takeoff.NTSB CHI05LA164Accident · 1 fatalLimited investigationFinal reportRockwell S-2R · Bristol, SDThe pilot's failure to maintain clearance with the static lines between the transmission towers. A factor associated with the accident were the static lines.NTSB DFW05IA150Incident · No injuriesIncident investigationFinal reportCessna 208B · Clarendon, TXThe loss of total engine power due to damage of the compressor stator vanes caused by a foreign object. A contributing factor was an in-flight ingestion of bird(s).NTSB DFW05CA079Accident · No injuriesData collectionFinal reportAir Tractor AT-402 · Dumas, ARThe pilot's failure to maintain clearance from the power lines.NTSB SEA05LA010Accident · No injuriesLimited investigationFinal reportBeech 99A · Billings, MTthe pilot's failure to follow the instrument approach procedure, which resulted in a premature descent below the decision height and subsequent collision with a building.NTSB ATL04CA146Accident · Minor injuriesData collectionFinal reportAir Tractor AT-402A · Hillsboro, ALThe pilot's inadequate visual lookout and failure to maintain adequate obstacle clearance, which resulted in collision with transmission wires.NTSB FTW04CA112Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · San Angelo, TXThe pilot's improper preflight performance planning, and his failure to establish a climb. Factors were the high density altitude and crosswind.NTSB FTW04LA108Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-402B · Goliad, TXThe pilot's failure to maintain clearance with power lines while maneuvering during an aerial application flight.NTSB CHI03LA273Accident · Minor injuriesLimited investigationFinal reportAyres S2R-T660 · Blytheville, ARThe pilot's inadequate visual lookout and altitude/clearance not being maintained from the transmission wires. A factor to the accident was the transmission wires.NTSB FTW03LA158Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Edna, TXThe pilot's failure to maintain clearance with the transmission wires while maneuvering during an aerial application flight. A contributing factor was the haze restricting the visibility.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.NTSB CHI02LA259Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-402A · Cherokee, IAThe pilot failed to maintain clearance with the power lines resulting in the rudder separation and the subsequent loss of aircraft control. A factor associated with the accident was the power line that was contacted.NTSB ANC02LA079Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6 · Toksook Bay, AKA bird strike during takeoff, which resulted in damage to the right wing.NTSB FTW02LA116Accident · No injuriesLimited investigationFinal reportAir Tractor 502B · Palestine, ARthe pilot's failure to maintain clearance with the power line while maneuvering during an aerial application flight.NTSB MIA02FA037Accident · 2 fatalField investigationFinal reportCessna 208B · Bessemer, ALThe poor in-flight planning by the pilot-in-command for his initiation of the ILS approach to runway 05 with weather conditions below minimums for the approach contrary to the federal aviation regulations, and the failure of the pilot to maintain control of…NTSB FTW02LA034Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-802A · Benton, LAin-flight collision with trees while on final approach to land for an undetermined reason.NTSB MIA01LA205Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-402A · Whitakers, NCthe pilot's failure to maintain an adequate visual lookout and the proper clearance from obstacles while conducting aerial applications, which resulted in an inflight collision with a power utility pole.NTSB CHI01LA183Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-402 · Catron, MOthe failure of the pilot to maintain clearance from the electrical wires.NTSB MIA01LA037Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Belle Glade, FLThe pilot's failure to maintain a visual lookout during a swath run resulting in an in-flight collision with known wires along the swath run, and a loss of directional control on landing roll due to flight control damage sustained during the in-flight…NTSB FTW00LA257Accident · No injuriesLimited investigationFinal reportAir Tractor 402B · Segraves, TXThe pilot's failure to maintain clearance with the irrigation system. A factor was the whirlwind weather condition.NTSB FTW00LA232Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Helena, ARthe pilot's failure to maintain obstacle clearance. A contributing factor was the sun glare.NTSB FTW00LA195Accident · Minor injuriesLimited investigationFinal reportAyres S2R-T34 · Anahuac, TXThe pilot's failure to maintain clearance with the power line. A factor was the lack of suitable terrain for the forced landing.NTSB FTW99LA249Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Seminole, TXThe pilot's failure to maintain obstacle clearance.NTSB LAX99TA274Accident · No injuriesFinal reportAir Tractor AT-802A · Elko, NVThe pilot's failure to maintain an adequate terrain/obstacle clearance altitude margin while engaged in fire fighting operations.NTSB MIA99LA229Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-402 · Holly Bluff, MSThe pilot's failure to maintain visual separation between his airplane and a tree while maneuvering during aerial application and the subsequent collision with the tree and the terrain. A factor in the accident was the sunglare on the airplane's windscreen.NTSB ATL99LA009Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT502B · Bainbridge, GAThe pilot's inadequate visual lookout which resulted in a collision with an irrigation unit located in the field.NTSB FTW99LA005Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Ringling, OKThe pilot's failure to maintain obstacle clearance. A factor was the sun glare which impaired the pilot's vision.NTSB FTW98LA383Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-502B · Portales, NMThe pilot's failure to maintain adequate altitude/clearance during an aerial application. Also causal was the inadvertent ground loop/swerve during the landing.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 FTW97FA285Accident · 1 fatalField investigationFinal reportAyres S2R-T15 · Oakridge, LAThe pilot's failure to maintain clearance for undetermined reasons.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 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.NTSB ATL96LA130Accident · 1 fatalLimited investigationFinal reportAir Tractor 402 · Mayersville, MSthe pilot's misjudgment of his ground speed and distance to trees during the swath run, and his delayed pull-up at the end of the swath run, which resulted in his failure to remain clear of the trees. The tail wind and location of the trees were related…NTSB ANC96LA076Accident · Minor injuriesLimited investigationFinal reportBeech 99C · Barrow, AKan in-flight collision with a bird.NTSB FTW94LA257Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-502 · Bosco, LAThe pilot's failure to maintain clearance with the telephone pole.NTSB FTW94LA239Accident · No injuriesLimited investigationFinal reportAir Tractor AT-501 · Marianna, ARA premature liftoff. Factors were the tall, wet grass and a tail wind component.NTSB FTW94LA098Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-502 · Moro, ARThe pilot's failure to maintain clearance of power lines.NTSB FTW92DRD04Accident · Minor injuriesFinal reportAir Tractor AT-502 · Mamou, LAThe pilot's failure to maintain proper clearance.NTSB NYC90DGM01Accident · Serious injuriesFinal reportAir Tractor AT-400 · Tyrone, PAThe pilot's failure to maintain adequate clearance from obstructions during low level aerial application operations. The pilot's inadequate visual lookout was a factor.NTSB LAX87DVA09Accident · No injuriesFinal reportAyres S2R-T34 · Mendota, CADuring an agricultural application flight, the aircraft struck a pole that was located 30 feet within the field boundary. The pilot stated that due to the dawn light and the way the pole blended in with the field along with a light amount of chemical on the…NTSB FTW82DA372Accident · No injuriesFinal reportAir Tractor AT-400 · Muleshoe, TXPilot collided with a water spraying machine while making crop spray pass. Landing gear tore off.