# 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 11 of 13 · 650 cases

## Cases, newest first

- [NTSB CHI01LA151](https://openairdocs.org/ntsb/CHI01LA151.md): Air Tractor AT-402B · Mount Vernon, SD · Accident · 1 fatal · Limited investigation · Final report · Jun 3, 2001 · N484WB · Destroyed
  > the pilot not maintaining aircraft control while maneuvering close to the ground.
- [NTSB ATL01LA063](https://openairdocs.org/ntsb/ATL01LA063.md): Air Tractor 502B · Anguilla, MS · Accident · 2 fatal · Limited investigation · Final report · Jun 2, 2001 · N257LA · 2 aircraft · Destroyed
  > Failure of both pilots to maintain visual lookout, resulting in an in-flight collision. A factor was sun glare.
- [NTSB SEA01IA093](https://openairdocs.org/ntsb/SEA01IA093.md): Beech C-99 · Salem, OR · Incident · No injuries · Incident investigation · Final report · May 15, 2001 · N992AF · Minor damage
  > A short to electrical wiring while in cruise flight.
- [NTSB DEN01FA094](https://openairdocs.org/ntsb/DEN01FA094.md): Cessna 208B · Steamboat Spngs, CO · Accident · 1 fatal · Field investigation · Final report · May 5, 2001 · N948FE · Destroyed
  > an inadvertent stall during an instrument approach, which resulted in a loss of control. Contributing factors were the pilot's attention being diverted by an abnormal indication, conditions conducive to airframe icing, and the pilot's lack of total experience…
- [NTSB SEA01LA080](https://openairdocs.org/ntsb/SEA01LA080.md): Ayres S2R-T45 · Royal City, WA · Accident · Minor injuries · Limited investigation · Final report · Apr 30, 2001 · N6129D · Substantial damage
  > Loss of engine power for undetermined reasons. Trees were a factor.
- [NTSB IAD01LA048](https://openairdocs.org/ntsb/IAD01LA048.md): Cessna 208B · Plattsburgh, NY · Accident · No injuries · Limited investigation · Final report · Apr 26, 2001 · N974FE · Substantial damage
  > The incorrect installation of the propeller reversing lever and carbon block assembly, which resulted in a loss of propeller thrust.
- [NTSB MIA01FA117](https://openairdocs.org/ntsb/MIA01FA117.md): Piper PA-46-500TP · Vero Beach, FL · Accident · 2 fatal · Field investigation · Final report · Apr 9, 2001 · N262MM · Destroyed
  > The pilot's excessive bank angle and his failure to maintain airspeed while returning to the airport after takeoff due to an unspecified problem resulting in the airplane stalling and colliding with trees during the resultant uncontrolled descent.
- [NTSB DEN01FA075](https://openairdocs.org/ntsb/DEN01FA075.md): Socata TBM 700 · Englewood, CO · Accident · 1 fatal · Field investigation · Final report · Mar 26, 2001 · N300WC · Destroyed
  > the pilot's spatial disorientation, which led to his failure to maintain aircraft control. A contributing factor was the pilot's decision to intentionally fly into known adverse weather that consisted of low ceilings, obscuration, and ice fog.
- [NTSB LAX01LA114](https://openairdocs.org/ntsb/LAX01LA114.md): Air Tractor AT-802 A · Maricopa, AZ · Accident · No injuries · Limited investigation · Final report · Mar 10, 2001 · N6059L · Substantial damage
  > Inadequate selection of landing facilities and improper placement of vehicles near the runway. An additional factor was the use of a runway which resulted in a downwind landing.
- [NTSB CHI01FA084](https://openairdocs.org/ntsb/CHI01FA084.md): Beech 1900D · Chicago, IL · Accident · Minor injuries · Field investigation · Final report · Feb 10, 2001 · N97UX · Substantial damage
  > The flightcrew not lowering the landing gear and/or verifying the landing gear position as required by three separate checklists, which resulted in an inadvertent gear-up landing. A factor to the accident was the flightcrew not complying with the required…
- [NTSB DEN01FA041](https://openairdocs.org/ntsb/DEN01FA041.md): Beech 65-A90 · Lake Point, UT · Accident · 9 fatal · Field investigation · Final report · Jan 15, 2001 · N616F · Destroyed
  > the pilot's exercise of poor judgment and his failure to maintain a safe altitude/clearance above the water. Contributing factors were the weather conditions that included low ceiling and visibility obscured by snow and mist, an inadequately equipped airplane…
- [NTSB NYC01FA058](https://openairdocs.org/ntsb/NYC01FA058.md): Beech B200 · Rangeley, ME · Accident · 2 fatal · Field investigation · Final report · Dec 22, 2000 · N30EM · Destroyed
  > The pilot-in-command's failure to maintain sufficient altitude while maneuvering to land, which resulted in a collision with terrain. Factors in the accident were the dark night, mountainous terrain, snow showers, clouds, and the pilot's decision to cancel…
- [NTSB MIA01LA037](https://openairdocs.org/ntsb/MIA01LA037.md): Air Tractor AT-502B · Belle Glade, FL · Accident · No injuries · Limited investigation · Final report · Dec 6, 2000 · N50470 · Substantial damage
  > The 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 LAX01LA019](https://openairdocs.org/ntsb/LAX01LA019.md): Beech 300 · Concord, CA · Accident · Serious injuries · Limited investigation · Final report · Oct 19, 2000 · N398DE · Substantial damage
  > the pilot's delayed decision to abort the takeoff and his failure to utilize the propeller's reverse pitch function.
- [NTSB MIA00IA266](https://openairdocs.org/ntsb/MIA00IA266.md): Beech 1900C · Miami, FL · Incident · No injuries · Incident investigation · Final report · Sep 16, 2000 · N194GA · Minor damage
  > The excessive clearance between the shuttle valve and the shuttle bore in the end cap of the left main landing gear actuator for undetermined reasons either during overhaul or manufacturing resulting in failure to build hydraulic pressure using the emergency…
- [NTSB FTW00LA257](https://openairdocs.org/ntsb/FTW00LA257.md): Air Tractor 402B · Segraves, TX · Accident · No injuries · Limited investigation · Final report · Sep 6, 2000 · N6174H · Substantial damage
  > The pilot's failure to maintain clearance with the irrigation system. A factor was the whirlwind weather condition.
- [NTSB FTW00LA233](https://openairdocs.org/ntsb/FTW00LA233.md): Air Tractor AT-502 · Deerpark, LA · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 2000 · N9136U · 2 aircraft · Destroyed
  > the failure of both pilots to maintain a visual outlook during landing approach. A contributing factor was both pilot's failure to follow recommended traffic patterns.
- [NTSB FTW00LA232](https://openairdocs.org/ntsb/FTW00LA232.md): Air Tractor AT-502 · Helena, AR · Accident · No injuries · Limited investigation · Final report · Aug 14, 2000 · N73184 · Substantial damage
  > the pilot's failure to maintain obstacle clearance. A contributing factor was the sun glare.
- [NTSB MIA00WA236](https://openairdocs.org/ntsb/MIA00WA236.md): Beech B200 · Spanish Cay, Bahamas · Accident · No injuries · Foreign investigation · Aug 12, 2000 · N3199A · Substantial damage
- [NTSB CHI00LA254](https://openairdocs.org/ntsb/CHI00LA254.md): Cessna 208B · North Platte, NE · Accident · No injuries · Limited investigation · Final report · Aug 12, 2000 · N1116Y · 2 aircraft · Minor damage
  > the pilot of the other airplane not maintaining clearance while taxiing. A factor was the dark night.
- [NTSB MIA00LA237](https://openairdocs.org/ntsb/MIA00LA237.md): Air Tractor 502B · Perthshire, MS · Accident · No injuries · Limited investigation · Final report · Aug 10, 2000 · N90158 · Substantial damage
  > the pilot's failure to perform a weight and balance check that resulted in overloading of the airplane with spraying material, for the weather conditions that existed at the time of takeoff. Factors in this accident were extremely high temperatures, which…
- [NTSB LAX00LA271](https://openairdocs.org/ntsb/LAX00LA271.md): Air Tractor AT-401 · Ripley, CA · Accident · No injuries · Limited investigation · Final report · Jul 13, 2000 · N4508Y · Substantial damage
  > A loss of engine power due to the separation of a connecting rod from the crankshaft.
- [NTSB FTW00LA195](https://openairdocs.org/ntsb/FTW00LA195.md): Ayres S2R-T34 · Anahuac, TX · Accident · Minor injuries · Limited investigation · Final report · Jul 5, 2000 · N2252N · Destroyed
  > The pilot's failure to maintain clearance with the power line. A factor was the lack of suitable terrain for the forced landing.
- [NTSB CHI00LA177](https://openairdocs.org/ntsb/CHI00LA177.md): Air Tractor AT-502 · Portland, ND · Accident · No injuries · Limited investigation · Final report · Jun 29, 2000 · N91891 · Substantial damage
  > the pilot intentionally operated the airplane with known damage on the left wing which resulted in the pilot's inability to maintain control of the airplane during takeoff.
- [NTSB CHI00LA176](https://openairdocs.org/ntsb/CHI00LA176.md): Beech B200 · Joliet, IL · Accident · Minor injuries · Limited investigation · Final report · Jun 29, 2000 · N780CA · Substantial damage
  > the failure of the pilot to obtain fuel and the inadequate preflight planning and preparation by the pilot. Factors to the accident were the fuel exhaustion and the ravine at the end of the runway.
- [NTSB LAX00GA185](https://openairdocs.org/ntsb/LAX00GA185.md): Beech 65-90 · China Lake, CA · Accident · Serious injuries · Final report · May 5, 2000 · N32229 · Substantial damage
  > the inadvertent early deployment of the test parachute lines and dummy and it's entanglement with the horizontal stabilizer, which resulted from the operator's inadequate test plan substantiation process for shortening the parachute's static line..
- [NTSB LAX00FA169](https://openairdocs.org/ntsb/LAX00FA169.md): Air Tractor 502A · Queen Creek, AZ · Accident · 1 fatal · Field investigation · Final report · Apr 22, 2000 · N15466 · Destroyed
  > The fatigue failure and in-flight separation of the left wing due to the manufacturer's underestimation during the aircraft design process of the time interval from fatigue crack initiation to failure, and, the manufacturer's subsequent specification of an…
- [NTSB ANC00LA033](https://openairdocs.org/ntsb/ANC00LA033.md): Cessna 208B · Holy Cross, AK · Accident · No injuries · Limited investigation · Final report · Mar 4, 2000 · N407GV · Substantial damage
  > An in-flight separation of a main landing gear tire mud flap, and subsequent impact with the horizontal stabilizer.
- [NTSB ANC00LA029](https://openairdocs.org/ntsb/ANC00LA029.md): Piper PA-31-T3 · Kotzebue, AK · Accident · Minor injuries · Limited investigation · Final report · Feb 21, 2000 · N219CS · Substantial damage
  > The pilot descended below the minimum descent altitude. Factors associated with this accident were the task overload of the pilot during the instrument approach, and not performing a level off.
- [NTSB FTW00FA083](https://openairdocs.org/ntsb/FTW00FA083.md): Cessna 182M · Mcalester, OK · Accident · 1 fatal · Field investigation · Final report · Feb 16, 2000 · N91994 · 2 aircraft · Destroyed
  > The failure of both pilots to maintain visual lookout while maneuvering in the traffic pattern.
- [NTSB CHI00FA071](https://openairdocs.org/ntsb/CHI00FA071.md): Beech 1900D · Escanaba, MI · Accident · No injuries · Field investigation · Final report · Feb 15, 2000 · N81SK · Substantial damage
  > the 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 MIA00WA062](https://openairdocs.org/ntsb/MIA00WA062.md): Beech 99A · St. Barthelemy, WN · Accident · No injuries · Foreign investigation · Dec 31, 1999 · N491BB · Substantial damage
- [NTSB ATL00LA018](https://openairdocs.org/ntsb/ATL00LA018.md): Cessna 208B · Adjuntas, PR · Accident · Serious injuries · Limited investigation · Final report · Dec 23, 1999 · N1315A · Destroyed
  > The pilot continued flight into adverse weather conditions that included low ceiling and turbulence. Factors to the accident were trees.
- [NTSB ANC00LA017](https://openairdocs.org/ntsb/ANC00LA017.md): Cessna 208B · Bethel, AK · Accident · No injuries · Limited investigation · Final report · Dec 6, 1999 · N5187B · Substantial damage
  > The pilot's inadequate preflight and his failure to remove snow and airframe ice from the airplane.
- [NTSB MIA00WA033](https://openairdocs.org/ntsb/MIA00WA033.md): Beech C90B · Charallave, Venezuela · Accident · Minor injuries · Foreign investigation · Nov 29, 1999 · N568SA · Substantial damage
- [NTSB NYC00WA014](https://openairdocs.org/ntsb/NYC00WA014.md): Cessna 208B · Lake Erie, Canada · Accident · No injuries · Foreign investigation · Oct 14, 1999 · N1117G · Substantial damage
- [NTSB NYC00FA006](https://openairdocs.org/ntsb/NYC00FA006.md): Raytheon Corporate Jets BE-200 · Williamstown, MA · Accident · 2 fatal · Field investigation · Final report · Oct 5, 1999 · N208MS · Destroyed
  > The pilot-in-command's failure comply with an air traffic control clearance which resulted in a collision with terrain. A factor in this accident was clouds.
- [NTSB MIA99LA257](https://openairdocs.org/ntsb/MIA99LA257.md): Air Tractor AT-502B · Anguilla, MS · Accident · Serious injuries · Limited investigation · Final report · Sep 16, 1999 · N5092G · Substantial damage
  > The P3 air line disconnected at the P3 air filter housing, and a 'B' nut not being safetied by maintenance personnel, which resulted in a total loss of engine power.
- [NTSB FTW99LA249](https://openairdocs.org/ntsb/FTW99LA249.md): Air Tractor AT-502B · Seminole, TX · Accident · No injuries · Limited investigation · Final report · Sep 6, 1999 · N5005G · Substantial damage
  > The pilot's failure to maintain obstacle clearance.
- [NTSB MIA99FA245](https://openairdocs.org/ntsb/MIA99FA245.md): Beech B-90 · West Palm Beach, FL · Accident · 8 fatal · Field investigation · Final report · Sep 3, 1999 · N338AS · Destroyed
  > a total loss of engine power due to fuel exhaustion. Contributing factors in this accident were the pilot's operation of the airplane in an overweight condition, inadequate pre-flight and in-flight planning.
- [NTSB LAX99TA274](https://openairdocs.org/ntsb/LAX99TA274.md): Air Tractor AT-802A · Elko, NV · Accident · No injuries · Final report · Aug 19, 1999 · N9190G · Substantial damage
  > The pilot's failure to maintain an adequate terrain/obstacle clearance altitude margin while engaged in fire fighting operations.
- [NTSB MIA99LA229](https://openairdocs.org/ntsb/MIA99LA229.md): Air Tractor AT-402 · Holly Bluff, MS · Accident · Minor injuries · Limited investigation · Final report · Aug 18, 1999 · N1510Z · Substantial damage
  > The 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 FTW99LA226](https://openairdocs.org/ntsb/FTW99LA226.md): Air Tractor AT-402 · Snyder, TX · Accident · No injuries · Limited investigation · Final report · Aug 17, 1999 · N4523L · Substantial damage
  > The loss of engine power due to fuel starvation as result of a leak in the engine fuel control. A factor was the lack of suitable terrain for the forced landing.
- [NTSB DEN99LA149](https://openairdocs.org/ntsb/DEN99LA149.md): Air Tractor AT-402A · Mead, CO · Accident · No injuries · Limited investigation · Final report · Aug 11, 1999 · N402RE · Substantial damage
  > The pilot's failure to follow proper approach to landing procedures as outlined in the Airplane Flight Manual. A factor was the 6-foot tall corn stalks.
- [NTSB ANC99LA107](https://openairdocs.org/ntsb/ANC99LA107.md): de Havilland DHC-6-300 · Ketchikan, AK · Accident · No injuries · Limited investigation · Final report · Aug 7, 1999 · N288SA · 2 aircraft · Substantial damage
  > A failure of ground handling personnel to verify a release procedure/directive, and removal of the airplane's tiedown, and subsequent collision with a parked airplane.
- [NTSB FTW99LA196](https://openairdocs.org/ntsb/FTW99LA196.md): Air Tractor AT-502B · Marvel, AR · Accident · No injuries · Limited investigation · Final report · Jul 21, 1999 · N6073U · Substantial damage
  > The pilot's failure to attain the proper takeoff airspeed.
- [NTSB ANC99LA066](https://openairdocs.org/ntsb/ANC99LA066.md): de Havilland DHC 2 MK III · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · May 29, 1999 · N30CC · Substantial damage
  > The certificated flight instructor's inadequate supervision of the duel student. Factors associated with the accident were the student's inadvertent stall, and a surging turboshaft engine.
- [NTSB ATL99LA026](https://openairdocs.org/ntsb/ATL99LA026.md): Beech 65-A90 · La Tortue, Haiti · Accident · Minor injuries · Limited investigation · Final report · Nov 29, 1998 · N171TE · Destroyed
  > Inadequate preflight planning/preparation by the pilot, which resulted in fuel exhaustion due to an inadequate supply of fuel. A factor was the terrain ( water).
- [NTSB NYC99WA028](https://openairdocs.org/ntsb/NYC99WA028.md): Cessna 208B · Hamilton, Canada · Accident · No injuries · Foreign investigation · Nov 26, 1998 · N27MG · Substantial damage
- [NTSB FTW99LA031](https://openairdocs.org/ntsb/FTW99LA031.md): Air Tractor AT-400A · Bunkie, LA · Accident · No injuries · Limited investigation · Final report · Nov 19, 1998 · N23787 · Substantial damage
  > The total loss of engine power for an undetermined reason. A factor was the lack of suitable terrain for the forced landing.

Next page: https://openairdocs.org/ntsb.md?engine=52032&page=12

## 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=11

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