# 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 4 of 13 · 650 cases

## Cases, newest first

- [NTSB CEN16LA288](https://openairdocs.org/ntsb/CEN16LA288.md): Cessna 208B · Baldwin, WI · Accident · No injuries · Limited investigation · Final report · Jul 21, 2016 · N7581F · Substantial damage
  > The pilot's decision to land the fully loaded parachutist drop airplane on a wet grass runway that had insufficient length for the landing in high temperature conditions, which resulted in a runway overrun, when a more suitable longer runway was available at…
- [NTSB ERA16CA302](https://openairdocs.org/ntsb/ERA16CA302.md): Beech B200 · Burnsville, NC · Accident · No injuries · Data collection · Final report · Jul 20, 2016 · N46CE · Substantial damage
  > A collision with a bush during landing.
- [NTSB GAA16CA308](https://openairdocs.org/ntsb/GAA16CA308.md): Cessna 208 · Fort Dodge, IA · Accident · No injuries · Data collection · Final report · Jun 5, 2016 · N750Z · Substantial damage
  > The flight crew's failure to install the tail stand prior to passenger boarding, which resulted in a tail strike.
- [NTSB GAA16CA303](https://openairdocs.org/ntsb/GAA16CA303.md): Air Tractor AT 502 · Nicolaus, CA · Accident · No injuries · Data collection · Final report · Jun 1, 2016 · N5091N · Substantial damage
  > The pilot's insufficient clearance from a power line during aerial application operations, which resulted in a power line strike, a forced landing on unsuitable terrain, loss of directional control, and collision with terrain.
- [NTSB CEN16LA181](https://openairdocs.org/ntsb/CEN16LA181.md): Air Tractor AT 502 · West, TX · Accident · 1 fatal · Limited investigation · Final report · May 14, 2016 · N1546Z · Destroyed
  > The pilot’s failure to see and avoid cellular tower guy wires. Contributing to the accident was the pilot’s decision to operate at low altitude.
- [NTSB WPR16LA107](https://openairdocs.org/ntsb/WPR16LA107.md): Cessna 208B · Acampo, CA · Accident · Minor injuries · Limited investigation · Final report · May 12, 2016 · N1114A · Substantial damage
  > A total loss of engine power due to a fatigue fracture of the fuel pressure line that connected the fuel control unit and the fuel flow transducer due to vibration as the result of a fatigue fracture of an associated support clamp. Contributing to the…
- [NTSB GAA16CA224](https://openairdocs.org/ntsb/GAA16CA224.md): Air Tractor AT 502 · Oberlin, KS · Accident · No injuries · Data collection · Final report · May 8, 2016 · N6181Q · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll, which resulted in runway excursion, and a ground loop.
- [NTSB CEN16FA158](https://openairdocs.org/ntsb/CEN16FA158.md): Beech 65 A90 1 · Slidell, LA · Accident · 2 fatal · Field investigation · Final report · Apr 20, 2016 · N7MC · Destroyed
  > The unstable approach in black-hole conditions, resulting in the airplane overshooting the runway extended centerline and descending well below a safe glidepath for the runway. Contributing to the accident was the lack of monitoring by the copilot allowing…
- [NTSB CEN16LA139](https://openairdocs.org/ntsb/CEN16LA139.md): Air Tractor AT-402 · Beyersville, TX · Accident · Serious injuries · Limited investigation · Final report · Mar 29, 2016 · N4555E · Substantial damage
  > The pilot's failure to maintain visual separation from the power line due to a lack of identifiable and contrasting features, which led to an inflight collision with the line while maneuvering in gray, hazy conditions.
- [NTSB ERA16LA137](https://openairdocs.org/ntsb/ERA16LA137.md): Beech 99 · Rockland, ME · Accident · No injuries · Limited investigation · Final report · Mar 2, 2016 · N198WA · Substantial damage
  > The airplane’s encounter with isolated severe turbulence, which resulted in substantial airframe damage.
- [NTSB OPS16IA009](https://openairdocs.org/ntsb/OPS16IA009.md): Cessna 172S · Honolulu, HI · Incident · Class 3 · Incident · Final report · Feb 26, 2016 · N269ME · 2 aircraft · No damage
  > The air traffic controller's decision to clear an aircraft to land on a runway occupied by another aircraft that had previously been instructed to line up and wait. Contributing to the runway incursion was the failure of the air traffic controller to visually…
- [NTSB GAA16CA109](https://openairdocs.org/ntsb/GAA16CA109.md): Cessna CE-208 · Hooper Bay, AK · Accident · Minor injuries · Data collection · Final report · Jan 15, 2016 · N104AN · Substantial damage
  > The pilot's failure to identify the runway, resulting in the airplane touching down a few feet to the right of the runway.
- [NTSB GAA16CA348](https://openairdocs.org/ntsb/GAA16CA348.md): Beech B200 · Carolina, PR · Accident · No injuries · Data collection · Final report · Jan 11, 2016 · N87SA · Substantial damage
  > The pilot's failure to actuate the parking brake prior to leaving his seat, resulting in substantial damage.
- [NTSB CEN16LA076](https://openairdocs.org/ntsb/CEN16LA076.md): Beech 200 · Gary, IN · Accident · No injuries · Limited investigation · Final report · Dec 30, 2015 · N999VB · Substantial damage
  > The pilot's failure to maintain the glidepath and appropriate airspeed during landing in icing conditions, which resulted in an aerodynamic stall and a hard landing.
- [NTSB CEN16LA089](https://openairdocs.org/ntsb/CEN16LA089.md): Cessna 208B · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Nov 11, 2015 · N617ST · Substantial damage
  > The pilot's failure to properly calculate the airplane's weight and balance and center of gravity, which resulted in the tail striking the ground.
- [NTSB CEN16LA052](https://openairdocs.org/ntsb/CEN16LA052.md): Cessna 208B · Chicago, IL · Accident · No injuries · Limited investigation · Final report · Nov 3, 2015 · N732MD · Substantial damage
  > The failure of the driver of the service vehicle to yield to the taxiing airplane, which resulted in a near-collision and tail strike.
- [NTSB CEN15LA389](https://openairdocs.org/ntsb/CEN15LA389.md): Air Tractor AT 502B · Monroe, NE · Accident · Minor injuries · Limited investigation · Final report · Aug 27, 2015 · N61267 · Substantial damage
  > Loss of propeller thrust for reasons that could not be determined, since examination of the airplane's engine, propeller, and associated accessories revealed no anomalies.
- [NTSB ERA15WA310](https://openairdocs.org/ntsb/ERA15WA310.md): Cessna 208B · Saba, NT · Accident · Minor injuries · Foreign investigation · Aug 12, 2015 · N924FE · Substantial damage
  > On August 12, 2015, at 1630 Universal Coordinated Time (UTC), a Cessna 208B, U.S. Registration N924FE, operated by Mountain Air Cargo, was substantially damaged following a loss of engine power and ditching in the Caribbean Sea near Saba, Netherlands…
- [NTSB ERA15LA293](https://openairdocs.org/ntsb/ERA15LA293.md): Beech C90B · Georgetown, KY · Accident · Serious injuries · Limited investigation · Final report · Aug 2, 2015 · N257CQ · Substantial damage
  > Undetermined based on the available evidence.
- [NTSB GAA15CA194](https://openairdocs.org/ntsb/GAA15CA194.md): Air Tractor AT 402B · Monte Vista, CO · Accident · No injuries · Data collection · Final report · Jul 22, 2015 · N402KN · Substantial damage
  > The pilot's failure to maintain directional control during the landing, which resulted in a runway excursion and collision with objects.
- [NTSB ERA15FA181](https://openairdocs.org/ntsb/ERA15FA181.md): Piper PA-31T1 · Fort Lauderdale, FL · Accident · 4 fatal · Field investigation · Final report · Apr 12, 2015 · N119RL · Destroyed
  > A rapid onset of smoke and/or fire inflight for reasons that could not be determined due to the postimpact fire and the condition of the wreckage.
- [NTSB CEN15IA200](https://openairdocs.org/ntsb/CEN15IA200.md): Air Tractor AT 402A · Brickeys, AR · Incident · No injuries · Incident investigation · Final report · Apr 4, 2015 · N623LA · Minor damage
  > The in-flight separation of the attachment hardware at the elevator control pushrod due to maintenance personnel's improper reinstallation of the attachment hardware.
- [NTSB CEN15LA182](https://openairdocs.org/ntsb/CEN15LA182.md): Air Tractor AT 400 · Levelland, TX · Accident · Serious injuries · Limited investigation · Final report · Mar 26, 2015 · N136DB · Substantial damage
  > The in-flight separation of the left aileron's attachment hardware at the connection between the long aileron pushrod and the left aileron bellcrank. Contributing to the accident was maintenance personnel’s improper installation of, or failure to install, the…
- [NTSB CEN15LA180](https://openairdocs.org/ntsb/CEN15LA180.md): Cessna 208B · Verdigris, OK · Accident · Minor injuries · Limited investigation · Final report · Mar 24, 2015 · N106BZ · Substantial damage
  > The fuel pump gear manufacturer’s allowance of set-up gears made from a nonconforming material to be put in the production inventory system, the installation of a nonconforming gear in the accident airplane’s production fuel pump, and the gear’s failure,…
- [NTSB GAA15CA005](https://openairdocs.org/ntsb/GAA15CA005.md): Cessna 208B · Muskegon, MI · Accident · No injuries · Data collection · Final report · Mar 10, 2015 · N12155 · Substantial damage
  > The pilot's improper decision to continue the landing when the airplane was not in a safe position to land, resulting in the collision with ground-based approach lighting.
- [NTSB WPR15CA110](https://openairdocs.org/ntsb/WPR15CA110.md): Raytheon B300 · Mammoth Lakes, CA · Accident · No injuries · Data collection · Final report · Feb 10, 2015 · N49WC · Substantial damage
  > The airplane encountered extreme turbulence during descent.
- [NTSB ERA15LA124](https://openairdocs.org/ntsb/ERA15LA124.md): Dehavilland DHC 6 Twin Otter · Sebastian, FL · Accident · No injuries · Limited investigation · Final report · Feb 9, 2015 · N30EA · 2 aircraft · Substantial damage
  > The pilot's failure to conduct all of the required items on the Before Starting Engines checklist, which resulted in her failure to detect an open hydraulic circuit breaker and led to insufficient hydraulic pressure to operate the airplane's brakes, her…
- [NTSB CEN15FA135](https://openairdocs.org/ntsb/CEN15FA135.md): Piper PA46 500TP · Lubbock, TX · Accident · 1 fatal · Field investigation · Final report · Feb 5, 2015 · N301D · Destroyed
  > The pilot's loss of airplane control due to spatial disorientation and light ice accumulation while operating in night, instrument meteorological conditions with gusting wind.
- [NTSB CEN15LA091](https://openairdocs.org/ntsb/CEN15LA091.md): Cessna 208B · Roswell, NM · Accident · No injuries · Limited investigation · Final report · Dec 30, 2014 · N950FE · Substantial damage
  > The pilot's failure to maintain adequate airspeed to compensate for icing on the airplane's wings and control surfaces during a circling approach, which resulted in an aerodynamic stall and impact with terrain.
- [NTSB CEN15FA034](https://openairdocs.org/ntsb/CEN15FA034.md): Raytheon B200 · Wichita, KS · Accident · 4 fatal · Field investigation · Final report · Oct 30, 2014 · N52SZ · Destroyed
  > The pilot's failure to maintain lateral control of the airplane after a reduction in left engine power and his application of inappropriate rudder input. Contributing to the accident was the pilot's failure to follow the emergency procedures for an engine…
- [NTSB DCA15RA018](https://openairdocs.org/ntsb/DCA15RA018.md): Short Bros Shorts SD3 60 · Sint Maartin -Juliana, NT · Accident · 2 fatal · Foreign investigation · Oct 29, 2014 · N380MQ · Destroyed
  > import
- [NTSB ERA14CA458](https://openairdocs.org/ntsb/ERA14CA458.md): Beech C90 · Oneida, TN · Accident · No injuries · Data collection · Final report · Sep 25, 2014 · N211PC · Substantial damage
  > The pilot's failure to properly configure the rudder trim for takeoff and his failure to maintain directional control during a precautionary landing, which resulted in a runway excursion and collision with terrain.
- [NTSB ERA14FA399](https://openairdocs.org/ntsb/ERA14FA399.md): Air Tractor AT-802A · Parsons, TN · Accident · 1 fatal · Field investigation · Final report · Aug 20, 2014 · N802BB · Substantial damage
  > The pilot’s failure to see and avoid trees during a low-level aerial application operation.
- [NTSB ENG14IA018](https://openairdocs.org/ntsb/ENG14IA018.md): Piper PA46 500TP · Denver, CO · Incident · No injuries · Incident investigation · Final report · Jul 7, 2014 · N406CD · Minor damage
  > The pilots' incorrect activation of the Manual Override Lever, during ground operation, in an attempt to correct a sub-idle speed condition of the engine, resulting in an over-temperature of the CT blades, their subsequent distress and failure of the engine.…
- [NTSB CEN14LA349](https://openairdocs.org/ntsb/CEN14LA349.md): Air Tractor AT-502 · Carthage, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 7, 2014 · N9185G · Substantial damage
  > The airplane’s inability to climb out of ground effect, which resulted from the pilot using a lower power setting than needed for takeoff due to the mechanic’s installation of the wrong engine torque gauge.
- [NTSB WPR14LA267](https://openairdocs.org/ntsb/WPR14LA267.md): Air Tractor AT 502B · Sacramento, CA · Accident · Minor injuries · Limited investigation · Final report · Jun 23, 2014 · N61150 · Substantial damage
  > The total loss of engine power for reasons that could not be determined because the airplane was not available for postaccident examination.
- [NTSB ANC14CA044](https://openairdocs.org/ntsb/ANC14CA044.md): Cessna 208B · Egegik, AK · Accident · No injuries · Data collection · Final report · Jun 20, 2014 · N208SM · Substantial damage
  > The pilot's loss of situational awareness during the takeoff roll resulting in a collision with a refrigeration trailer.
- [NTSB CEN14FA300](https://openairdocs.org/ntsb/CEN14FA300.md): Piper PA 46-310P · Lehman, TX · Accident · 3 fatal · Field investigation · Final report · Jun 18, 2014 · N2428Q · Substantial damage
  > The pilot's improper decision to enter an area of known adverse weather, which resulted in the loss of airplane control. Contributing to the accident was the air traffic controller's failure to provide critical weather information to the pilot to help him…
- [NTSB CEN14LA299](https://openairdocs.org/ntsb/CEN14LA299.md): Air Tractor AT 502 · Dell, AR · Accident · Minor injuries · Limited investigation · Final report · Jun 16, 2014 · N9184T · Substantial damage
  > The pilot’s failure to establish a proper airspeed during takeoff with the airplane near its maximum gross weight in high-density altitude and gusting crosswind conditions.
- [NTSB WPR14LA245](https://openairdocs.org/ntsb/WPR14LA245.md): Air Tractor AT 502B · Princeton, CA · Accident · No injuries · Limited investigation · Final report · Jun 13, 2014 · N502JS · Substantial damage
  > The partial loss of engine power during takeoff for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA14FA288](https://openairdocs.org/ntsb/ERA14FA288.md): Piper PA-46-500TP · White Plains, NY · Accident · 1 fatal · Field investigation · Final report · Jun 13, 2014 · N5335R · Destroyed
  > The pilot's failure to maintain a positive climb rate after takeoff due to spatial disorientation (somatogravic illusion). Contributing to the accident was the pilot's self-induced pressure to depart and his decision to depart in low-ceiling and…
- [NTSB CEN14CA283](https://openairdocs.org/ntsb/CEN14CA283.md): Ayres S2R T34 · Wilmont, AR · Accident · No injuries · Data collection · Final report · Jun 7, 2014 · N23034 · Substantial damage
  > Pilot's failure to verify the amount of chemical load on the airplane prior to takeoff which resulted in the airplane being heavier than expected. Contributing to the accident was loading crew not following the pilot's instructions.
- [NTSB CEN14LA272](https://openairdocs.org/ntsb/CEN14LA272.md): Dehavilland DHC 6 200 · Middletown, OH · Accident · 1 fatal · Limited investigation · Final report · Jun 1, 2014 · N223AL · Minor damage
  > The skydiving operator employee’s failure to see and avoid the rotating propeller blades when she walked toward the cockpit while the airplane’s engines were running.
- [NTSB ANC14CA036](https://openairdocs.org/ntsb/ANC14CA036.md): Cessna 208B · Aniak, AK · Accident · No injuries · Data collection · Final report · May 15, 2014 · N1275N · Substantial damage
  > The pilot's failure to maintain clearance from a forklift while taxiing.
- [NTSB ERA14LA235](https://openairdocs.org/ntsb/ERA14LA235.md): Pacific Aerospace 750XL · Warrenton, VA · Accident · No injuries · Limited investigation · Final report · May 9, 2014 · N750SS · Substantial damage
  > The pilot’s improper landing flare, which resulted in a hard landing and separation of the left main landing gear.
- [NTSB CEN14LA211](https://openairdocs.org/ntsb/CEN14LA211.md): Air Tractor AT 502B · Garfield, KS · Accident · 1 fatal · Limited investigation · Final report · Apr 22, 2014 · N51990 · Substantial damage
  > The pilot’s inadequate preflight planning and subsequent failure to remain clear of power lines while maneuvering low to the ground.
- [NTSB ANC14FA022](https://openairdocs.org/ntsb/ANC14FA022.md): Cessna 208B · Kwethluk, AK · Accident · 2 fatal · Field investigation · Final report · Apr 8, 2014 · N126AR · Destroyed
  > The check airman's delayed remedial action and initiation of a recovery procedure after a simulated pitch trim excursion, which resulted in a loss of airplane control.
- [NTSB CEN14FA167](https://openairdocs.org/ntsb/CEN14FA167.md): Socata TBM 700 · Ridgway, CO · Accident · 5 fatal · Field investigation · Final report · Mar 22, 2014 · N702H · Substantial damage
  > The pilot's loss of airplane control during an instrument approach procedure, which resulted in the airplane exceeding its critical angle of attack and entering an inadvertent aerodynamic stall and spin.
- [NTSB WPR14FA068](https://openairdocs.org/ntsb/WPR14FA068.md): Cessna 208B · Kalaupapa, HI · Accident · 1 fatal · Field investigation · Final report · Dec 12, 2013 · N687MA · Destroyed
  > The loss of engine power due to the fracture of multiple blades on the compressor turbine wheel, which resulted in a ditching. The reason for the blade failures could not be determined due to secondary thermal damage to the blades.
- [NTSB ANC14MA008](https://openairdocs.org/ntsb/ANC14MA008.md): Cessna 208B · Saint Marys, AK · Accident · 5 fatal · Major investigation · Final report · Nov 30, 2013 · N12373 · Substantial damage
  > The pilot's decision to initiate a visual flight rules approach into an area of instrument meteorological conditions at night and the flight coordinators' release of the flight without discussing the risks with the pilot, which resulted in the pilot…

Next page: https://openairdocs.org/ntsb.md?engine=52032&page=5

## 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=4

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.