# NTSB investigations: Pratt & Whitney PT6A series

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

Page 6 of 13 · 650 cases

## Cases, newest first

- [NTSB ERA11LA298](https://openairdocs.org/ntsb/ERA11LA298.md): Thrush S2R-T660 · Greenwood, MS · Accident · No injuries · Limited investigation · Final report · May 13, 2011 · N660KP · Substantial damage
  > A partial loss of engine power during low-altitude maneuvering for undetermined reasons.
- [NTSB WPR11CA222](https://openairdocs.org/ntsb/WPR11CA222.md): Thrush S2R-T34 · Pleasant Grove, CA · Accident · No injuries · Data collection · Final report · May 11, 2011 · N510CW · Substantial damage
  > The pilot's failure to maintain directional control during the landing.
- [NTSB WPR11FA221](https://openairdocs.org/ntsb/WPR11FA221.md): Air Tractor AT-802A · Miles City, MT · Accident · 1 fatal · Field investigation · Final report · May 9, 2011 · N8523H · Substantial damage
  > The pilot's continued visual flight rules flight into deteriorating weather conditions in an airplane not equipped for instrument flight, which resulted in a collision with terrain.
- [NTSB CEN11LA323](https://openairdocs.org/ntsb/CEN11LA323.md): Air Tractor AT-402A · Arriba, CO · Accident · Serious injuries · Limited investigation · Final report · May 5, 2011 · N5192F · Substantial damage
  > The pilot’s controlled flight into terrain for undetermined reasons.
- [NTSB WPR11LA218](https://openairdocs.org/ntsb/WPR11LA218.md): Piper PA46-500TP · Rock Springs, WY · Accident · No injuries · Limited investigation · Final report · May 3, 2011 · N46ME · Substantial damage
  > The overstress fracture of the right aileron midspan hinge bracket due to modal vibrations created by a deflated right main landing gear tire during the takeoff roll.
- [NTSB CEN11CA309](https://openairdocs.org/ntsb/CEN11CA309.md): Cessna 208B · El Paso, TX · Accident · No injuries · Data collection · Final report · Apr 27, 2011 · N208TF · Substantial damage
  > The pilot's loss of control as result of the gusting wind.
- [NTSB CEN11LA296](https://openairdocs.org/ntsb/CEN11LA296.md): Air Tractor AT-802A · New Madrid, MO · Accident · Serious injuries · Limited investigation · Final report · Apr 19, 2011 · N802KC · 2 aircraft · Substantial damage
  > The failure of both pilots to see and avoid the other airplane, which resulted in a midair collision.
- [NTSB CEN11CA287](https://openairdocs.org/ntsb/CEN11CA287.md): Air Tractor AT503 · Telephone, TX · Accident · Minor injuries · Data collection · Final report · Apr 13, 2011 · N503AD · Substantial damage
  > The pilot's failure to maintain adequate airspeed which resulted in an aerodynamic stall.
- [NTSB CEN11CA224](https://openairdocs.org/ntsb/CEN11CA224.md): Ayres S2R-T34 · Swan Lake, AR · Accident · Minor injuries · Data collection · Final report · Mar 12, 2011 · N92KM · Substantial damage
  > An in-flight collision with power lines following an encounter with a wind gust.
- [NTSB WPR11FA158](https://openairdocs.org/ntsb/WPR11FA158.md): Cessna 208B · Bakersfield, CA · Accident · No injuries · Field investigation · Final report · Mar 10, 2011 · N930FE · Substantial damage
  > The malfunction of a master brake cylinder, which resulted in a loss of braking action and subsequent loss of directional control and collision with three vehicles during taxi. Contributing to the accident was the inappropriate design and manufacture of the…
- [NTSB ERA11FA183](https://openairdocs.org/ntsb/ERA11FA183.md): Dehavilland DHC-6-100 · Hampton, GA · Accident · 2 fatal · Field investigation · Final report · Mar 8, 2011 · N157KM · Substantial damage
  > The pilot did not maintain airspeed while maneuvering, which resulted in an aerodynamic stall.
- [NTSB ANC11LA009](https://openairdocs.org/ntsb/ANC11LA009.md): Cessna 208B · Kipnuk, AK · Accident · No injuries · Limited investigation · Final report · Jan 6, 2011 · N715HE · Substantial damage
  > The pilot’s decision to land long on the icy snow-covered runway, resulting in a runway excursion and collision with terrain.
- [NTSB ERA11WA090](https://openairdocs.org/ntsb/ERA11WA090.md): Hawker Beechcraft TC-45J · Nassau, Bahamas · Accident · 2 fatal · Foreign investigation · Dec 14, 2010 · N38L · Destroyed
  > On December 14, 2010, about 1442 eastern standard time, a Hawker Beechcraft TC-45J, N38L, registered to and operated by Monarch Air Group, impacted ocean waters about 7 miles southwest of Lynden Pindling International Airport (MYNN), Nassau, Bahamas. The…
- [NTSB CEN11IA106](https://openairdocs.org/ntsb/CEN11IA106.md): Piper PA-46-500TP · Olathe, KS · Incident · No injuries · Incident investigation · Final report · Oct 21, 2010 · N767TP · No damage
  > The loss of engine power for undetermined reasons.
- [NTSB WPR10IA482](https://openairdocs.org/ntsb/WPR10IA482.md): Beech F90 · Idaho Falls, ID · Incident · No injuries · Incident investigation · Final report · Sep 29, 2010 · N124BK · Minor damage
  > The partial retraction/collapse of the main landing gear during the landing roll for undetermined reasons.
- [NTSB CEN10CA445](https://openairdocs.org/ntsb/CEN10CA445.md): Air Tractor AT-502B · Zwingle, IA · Accident · Minor injuries · Data collection · Final report · Jul 28, 2010 · N6030U · Substantial damage
  > The pilot's failure to maintain clearance from wires during the agricultural flight.
- [NTSB CEN10LA437](https://openairdocs.org/ntsb/CEN10LA437.md): Air Tractor AT-602 · Yates City, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 25, 2010 · N8521L · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN10CA343](https://openairdocs.org/ntsb/CEN10CA343.md): Air Tractor AT-402B · Virden, IL · Accident · No injuries · Data collection · Final report · Jun 19, 2010 · N5120E · Substantial damage
  > The pilot's decision to take off from a wet grass runway at an airplane weight and density altitude that precluded a normal takeoff and climb.
- [NTSB CEN10LA315](https://openairdocs.org/ntsb/CEN10LA315.md): Beech 1900D · Denver, CO · Accident · No injuries · Limited investigation · Final report · Jun 12, 2010 · N195GL · Substantial damage
  > The pre-existent damage of the right-hand landing gear actuator attachment lug which led to fatigue cracking and eventual overload failure resulting in a collapsed gear upon landing.
- [NTSB ERA10CA309](https://openairdocs.org/ntsb/ERA10CA309.md): Air Tractor AT-402B · Alcolu, SC · Accident · No injuries · Data collection · Final report · Jun 10, 2010 · N5085Q · Substantial damage
  > The pilot’s failure to maintain clearance from a tree. Contributing to the accident was the sunglare.
- [NTSB CEN10LA298](https://openairdocs.org/ntsb/CEN10LA298.md): Air Tractor AT-502B · Pollard, AR · Accident · No injuries · Limited investigation · Final report · Jun 4, 2010 · N6083G · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB WPR10LA260](https://openairdocs.org/ntsb/WPR10LA260.md): Socata TBM · Lost Hills, CA · Accident · No injuries · Limited investigation · Final report · May 23, 2010 · N750AB · Substantial damage
  > A loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the pilot's failure to obtain the proper…
- [NTSB CEN10CA265](https://openairdocs.org/ntsb/CEN10CA265.md): Ayres S2R-R1340 · Roe, AR · Accident · No injuries · Data collection · Final report · May 21, 2010 · N107CA · Substantial damage
  > The pilot's decision to take off with a tailwind, resulting in a runway overrun.
- [NTSB OPS10IA155](https://openairdocs.org/ntsb/OPS10IA155.md): Embraer EMB-135KL · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Apr 22, 2010 · N806AE · 2 aircraft · No damage
  > The air traffic controller's issuance of an improper takeoff clearance to the pilot of the Embraer. Contributing to the incident was the instructor’s inadequate monitoring of the trainee local controller.
- [NTSB CEN10LA217](https://openairdocs.org/ntsb/CEN10LA217.md): Air Tractor AT-802A · Alpine, TX · Accident · No injuries · Limited investigation · Final report · Apr 21, 2010 · N9197F · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB OPS10IA015](https://openairdocs.org/ntsb/OPS10IA015.md): Cessna 208B · Phoenix, AZ · Incident · No injuries · Incident investigation · Final report · Mar 20, 2010 · N992FE · 2 aircraft · No damage
  > The Cessna 208 pilot’s failure to identify the correct landing runway.
- [NTSB CEN10LA143](https://openairdocs.org/ntsb/CEN10LA143.md): Beech 65-A90 · DeKalb, IL · Accident · No injuries · Limited investigation · Final report · Mar 2, 2010 · N129LA · Substantial damage
  > The collapse of the landing gear during landing due to the company's improper maintenance practices and the pilot's decision to take off with an overextended landing gear strut.
- [NTSB ERA10CA155](https://openairdocs.org/ntsb/ERA10CA155.md): Socata TBM 700 · Gaithersburg, MD · Accident · No injuries · Data collection · Final report · Mar 1, 2010 · N700ZR · Substantial damage
  > The pilot’s failure to maintain aircraft control while performing a go-around.
- [NTSB WPR10LA141](https://openairdocs.org/ntsb/WPR10LA141.md): Cessna 208B · Sacramento, CA · Accident · No injuries · Limited investigation · Final report · Feb 19, 2010 · N892FE · Substantial damage
  > An in-flight collision with a bird while on final approach.
- [NTSB CEN10FA119](https://openairdocs.org/ntsb/CEN10FA119.md): Piper PA-31T · Forest City, IA · Accident · 1 fatal · Field investigation · Final report · Feb 12, 2010 · N250TT · Substantial damage
  > The pilot's failure to maintain airplane control during final approach.
- [NTSB ERA10IA094](https://openairdocs.org/ntsb/ERA10IA094.md): Cessna 208B · Rome, NY · Incident · No injuries · Incident investigation · Final report · Dec 3, 2009 · N701FX · No damage
  > The operator's inadequate engine wash intervals, which resulted in compressor turbine blade sulphidation and subsequent turbine blade failure.
- [NTSB ERA10LA056](https://openairdocs.org/ntsb/ERA10LA056.md): Hawker Beechcraft B200 · Greer, SC · Accident · Serious injuries · Limited investigation · Final report · Nov 9, 2009 · N337MT · Substantial damage
  > A loss of engine power due to fuel exhaustion as a result of the pilot’s failure to visually verify that sufficient fuel was onboard prior to flight.
- [NTSB WPR10IA045](https://openairdocs.org/ntsb/WPR10IA045.md): Beech C-99 · Show Low, AZ · Incident · Minor injuries · Incident investigation · Final report · Nov 4, 2009 · N330AV · Minor damage
  > An in-flight collision with a bird during initial descent.
- [NTSB WPR10LA022](https://openairdocs.org/ntsb/WPR10LA022.md): Cessna 208B · Molokai, HI · Accident · No injuries · Limited investigation · Final report · Oct 15, 2009 · N861MA · Substantial damage
  > The failure of the ramp agent to use a tail stand.
- [NTSB WPR09LA451](https://openairdocs.org/ntsb/WPR09LA451.md): Raytheon B200 · Hayward, CA · Accident · No injuries · Limited investigation · Final report · Sep 16, 2009 · N726CB · Substantial damage
  > The pilot's failure to maintain directional control after takeoff. Contributing to the accident was the pilot's inadequate preflight and failure to follow the airplane manufacturer's checklist to ensure that the rudder trim control and right propeller control…
- [NTSB CEN09CA554](https://openairdocs.org/ntsb/CEN09CA554.md): Socata TBM 700 · Ann Arbor, MI · Accident · No injuries · Data collection · Final report · Aug 29, 2009 · N715V · Substantial damage
  > The pilot's hard landing during gusty wind conditions.
- [NTSB CEN09CA533](https://openairdocs.org/ntsb/CEN09CA533.md): Air Tractor AT-502B · Whittemore, IA · Accident · No injuries · Data collection · Final report · Aug 17, 2009 · N5003C · Substantial damage
  > The pilot's lack of preflight planning and remedial action with resulted in the airplane's inability to climb out of ground effect.
- [NTSB ERA09LA480](https://openairdocs.org/ntsb/ERA09LA480.md): Ayres S2R-T34 · Donalsonville, GA · Accident · Minor injuries · Limited investigation · Final report · Aug 10, 2009 · N2292E · Substantial damage
  > The failure of the right main gear strut due to an improper weld repair by maintenance personnel.
- [NTSB ERA09LA431](https://openairdocs.org/ntsb/ERA09LA431.md): Air Tractor AT502 · Minter City, MS · Accident · Serious injuries · Limited investigation · Final report · Jul 31, 2009 · N60237 · Substantial damage
  > The pilot’s failure to maintain airspeed while maneuvering at a low altitude, resulting in an aerodynamic stall.
- [NTSB ERA09CA428](https://openairdocs.org/ntsb/ERA09CA428.md): Air Tractor AT502 · Dundee, MS · Accident · Minor injuries · Data collection · Final report · Jul 29, 2009 · N502AJ · Substantial damage
  > The pilot's failure to maintain aircraft control during takeoff.
- [NTSB CEN09CA428](https://openairdocs.org/ntsb/CEN09CA428.md): Air Tractor AT-502B · Reydell, AR · Accident · No injuries · Data collection · Final report · Jul 10, 2009 · N60023 · Substantial damage
  > The pilot's inability to maintain control of the airplane when it unexpectedly encountered a whirlwind shortly after takeoff.
- [NTSB CEN09CA361](https://openairdocs.org/ntsb/CEN09CA361.md): Air Tractor AT-402A · Trumann, AR · Accident · No injuries · Data collection · Final report · Jun 12, 2009 · N50956 · Substantial damage
  > The pilot's failure to maintain aircraft control in flight. Contributing to the accident was his decision to fly with known hazardous weather conditions in the vicinity.
- [NTSB CEN09CA323](https://openairdocs.org/ntsb/CEN09CA323.md): Air Tractor AT-502 · Mendota, IL · Accident · Minor injuries · Data collection · Final report · May 29, 2009 · N198LA · Substantial damage
  > The pilot's inadequate preflight planning and preparation and his failure to perform an aborted takeoff.
- [NTSB ERA09FA304](https://openairdocs.org/ntsb/ERA09FA304.md): Beech C90A · Yeehaw Junction, FL · Accident · No injuries · Field investigation · Final report · May 25, 2009 · N8001V · Substantial damage
  > The failure of the flightcrew to recognize that both engines were being supplied fuel only from the right wing fuel tanks resulting in loss of power in both engine due to fuel starvation. Contributing to the accident were the inoperative the left auxiliary…
- [NTSB CEN09CA316](https://openairdocs.org/ntsb/CEN09CA316.md): Air Tractor AT-602 · Charleston, MO · Accident · Serious injuries · Data collection · Final report · May 15, 2009 · N85115 · Substantial damage
  > The pilot's failure to abort the takeoff resulting in a runway overrun and impact with terrain.
- [NTSB CEN09CA295](https://openairdocs.org/ntsb/CEN09CA295.md): Air Tractor AT502 · Lisse, TX · Accident · Minor injuries · Data collection · Final report · May 8, 2009 · N248LF · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB ERA09LA244](https://openairdocs.org/ntsb/ERA09LA244.md): De Havilland DHC2 · Plattsburgh, NY · Accident · No injuries · Limited investigation · Final report · Apr 12, 2009 · N258PA · Substantial damage
  > The pilot's improper application of brakes during the landing rollout.
- [NTSB WPR09CA190](https://openairdocs.org/ntsb/WPR09CA190.md): Ayres S2R-T34 · Cove, OR · Accident · Minor injuries · Data collection · Final report · Apr 9, 2009 · N114JP · Substantial damage
  > The pilot's failure to maintain adequate clearance from rising terrain while maneuvering.
- [NTSB CEN09FA126](https://openairdocs.org/ntsb/CEN09FA126.md): Pilatus PC-12/45 · Hayden, CO · Accident · 2 fatal · Field investigation · Final report · Jan 11, 2009 · N604WP · Destroyed
  > The pilot's loss of control due to snow/ice contamination on the airplane's lifting surfaces as a result of his decision not to deice the airplane before departure.
- [NTSB WPR09CA067](https://openairdocs.org/ntsb/WPR09CA067.md): Cessna 208B · Rock Springs, WY · Accident · No injuries · Data collection · Final report · Dec 27, 2008 · N890FE · Substantial damage
  > The pilot's failure to maintain control of the airplane while taxiing. Contributing to the accident were the gusty winds.

Next page: https://openairdocs.org/ntsb.md?engine=52032&page=7

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52032&page=6

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