NTSB investigations: Pratt & Whitney PT6 series

20 cases on aircraft whose registry engine model is Pratt & Whitney PT6 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

19782026
NTSB investigations: Pratt & Whitney PT6 series per year, 1978–2026: 20 cases
19781
19811
19991
20001
20011
20031
20051
20062
20081
20092
20112
20122
20131
20201
20211
20231

Latest 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 ('52033'))
  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.

NTSB WPR23LA338Accident · Serious injuriesClass 3 · LimitedFinal reportBell 212 · Balch Camp, CAThe pilot’s inadequate performance planning for the operation that resulted in an excessive gross weight for the operating conditions, leading to a loss of altitude during maneuvering and contact with trees. Contributing to the accident was the pilot’s…Sep 10, 2023 · N873HL · DestroyedNTSB WPR21LA268Accident · No injuriesClass 3 · LimitedFinal reportBell 212HP · Weed, CAThe pilot’s failure to maintain altitude during an approach to a lake. Contributing to the accident was the pilot’s failure to release the full water bucket as the helicopter was settling, which reduced the helicopter’s out-of-ground-effect performance.Jul 7, 2021 · N911KW · Substantial damageNTSB DCA20MA059Accident · 9 fatalClass 1 · MajorFinal reportSikorsky S76 · Calabasas, CAThe pilot’s decision to continue flight under visual flight rules into instrument meteorological conditions, which resulted in the pilot’s spatial disorientation and loss of control. Contributing to the accident was the pilot’s likely self-induced pressure…Jan 26, 2020 · N72EX · DestroyedNTSB CEN14CA082Accident · No injuriesData collectionFinal reportSikorsky S 76B · Port Fourchon, LAThe pilot's loss of control of the helicopter when it entered a settling with power condition during sudden gusty wind conditions on takeoff resulting in the helicopter subsequently impacting terrain.Dec 5, 2013 · N707MY · Substantial damageNTSB WPR13IA020Incident · No injuriesIncident investigationFinal reportAgusta A119 · Dolan Springs, AZInsufficient clearance between a truck and the main rotor blades of a helicopter on the ground with the engine running because of the lack of on-scene coordination between the agencies that responded to and were tasked with managing the vehicle accident site.Oct 20, 2012 · N207CF · Minor damageNTSB CEN12FA250Accident · No injuriesField investigationFinal reportSikorsky S-76B · Gulf of Mexico, LAThe intermittent loss of engine power due to a "stuck" stepper motor in the No. 2 engine's fuel control as a result of an inadequate overhaul. Contributing to the accident was the pilot's decision to continue flying the helicopter with a known defect, his…Apr 17, 2012 · N56RD · Substantial damageNTSB WPR11LA277Accident · Serious injuriesLimited investigationFinal reportBell 212 · Mesa, AZThe pilot's failure to maintain helicopter control while in a low hover.Jun 21, 2011 · N49678 · DestroyedNTSB WPR11FA163Accident · Serious injuriesField investigationFinal reportSikorsky S-58ET · El Segundo, CAA partial loss of engine power and the failure of the external hook to release the load for undetermined reasons.Mar 13, 2011 · N33602 · Substantial damageNTSB WPR10FA029Accident · No injuriesField investigationFinal reportAgusta A119 · Blythe, CAThe loss of engine power during cruise flight for undetermined reasons.Oct 23, 2009 · N119AH · Substantial damageNTSB WPR09TA356Accident · 1 fatalFinal reportBell 212 · Willow Creek, CAThe rappeller's failure to properly latch the rappelling harness to the rappelling assembly before exiting the helicopter.Jul 21, 2009 · N212HP · No damageNTSB LAX08LA200Accident · Minor injuriesLimited investigationFinal reportSikorsky S-76A · Santa Maria, CAThe copilot's misjudged clearance from an object during a hovering turn for landing. Contributing to the accident were the inadequately marked heliport surface and the close proximity of an obstruction near the landing area.Jun 27, 2008 · N343AA · Substantial damageNTSB LAX07FA056Accident · 3 fatalField investigationFinal reportBell 412SP · Hesperia, CAThe pilot's inadvertent encounter with instrument meteorological conditions and subsequent failure to maintain terrain clearance. Contributing to the accident were the dark night conditions, fog, and mountainous terrain.Dec 11, 2006 · N410MA · DestroyedNTSB LAX06TA284Accident · No injuriesFinal reportBell 212 · Happy Camp, CAFailure of compressor second stage stator vane for undetermined reasons while maneuvering.Sep 4, 2006 · N873HL · Substantial damageNTSB DEN05FA103Accident · 3 fatalField investigationFinal reportAgusta A119 · Mancos, COa loss of engine power for undetermined reasons and the pilot's inability to get into autorotation prior to impacting the ground. A factor contributing to the accident was the helicopter's low altitude when power was lost.Jun 30, 2005 · N403CF · Substantial damageNTSB ANC03GA023Accident · Serious injuriesFinal reportBell 212 · McMurdo Station, AYThe pilot's continued operation of the helicopter with an unstable external load, which resulted in damage to the cargo hook assembly, adjacent throttle controls, and subsequent loss of engine power, precipitating an emergency descent and impact with terrain.…Jan 17, 2003 · N1079U · Substantial damageNTSB DEN01TA134Accident · No injuriesFinal reportBell 205A-1 · Jackson, WYthe Bell 212 helicopter pilot's inadequate visual lookout which resulted in a midair collision.Jul 31, 2001 · N205BR · 2 aircraft · Substantial damageNTSB DEN00TA160Accident · Minor injuriesFinal reportBell 212 · Jackson, WYLoss of control for undetermined reasons.Aug 31, 2000 · N8224V · Substantial damageNTSB MIA00FA030Accident · 2 fatalField investigationFinal reportBell 212 · Philadelphia, MSThe failure of the pilot and company maintenance personnel during preflight and periodic inspections to identify the signs of fretting and looseness in the "red" main rotor blade pitch change horn to main rotor blade grip attachment, resulting in the…Nov 27, 1999 · N8144M · DestroyedNTSB FTW81DPG59Accident · No injuriesClosedAero Comdr S2R · Swifton, ARAug 5, 1981 · N8817Q · Substantial damageNTSB FTW78DRA33Accident · No injuriesClosedAero-Comdr S-2R · Beasley, TXJul 18, 1978 · N8817Q · Substantial damage