# NTSB investigations: Pratt & Whitney R1340 series, AR

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 1 of 5 · 207 cases

## Latest cases

- [NTSB CEN24LA313](https://openairdocs.org/ntsb/CEN24LA313.md): Grumman G164 · Dyess, AR · Accident · No injuries · Class 3 · Limited · Final report · Aug 9, 2024 · N6569 · Substantial damage
  > The improper overhaul of the carburetor and the malfunction of left magneto which resulted in a partial loss of engine power.
- [NTSB CEN23LA228](https://openairdocs.org/ntsb/CEN23LA228.md): Grumman Acft ENG Cor-Schweizer G-164 · Saffell, AR · Accident · No injuries · Class 4 · Limited · Final report · May 31, 2023 · N8405K · Substantial damage
  > The airplane’s encounter with a dust devil after takeoff, which resulted in a loss of lift, and a subsequent loss of control. Contributing to the accident was the presence of a dust devil in the airplane’s flight path.
- [NTSB GAA19CA271](https://openairdocs.org/ntsb/GAA19CA271.md): Ayres S 2R · Stuttgart, AR · Accident · No injuries · Data collection · Final report · May 17, 2019 · N5675X · Substantial damage
  > The pilot's exceedance of the airplane's critical angle of attack while maneuvering during an agricultural application flight, which resulted in an aerodynamic stall.
- [NTSB GAA17CA267](https://openairdocs.org/ntsb/GAA17CA267.md): Grumman Acft ENG Cor-Schweizer G 164 · Walnut Ridge, AR · Accident · No injuries · Data collection · Final report · May 8, 2017 · N6944K · Substantial damage
  > The pilot’s failure to maintain directional control during the go-around with a tailwind.
- [NTSB CEN15LA259](https://openairdocs.org/ntsb/CEN15LA259.md): Gulfstream-Schweizer A/C Gulfstream AM G 164B · Delaplaine, AR · Accident · Minor injuries · Limited investigation · Final report · Jun 3, 2015 · N8402K · Substantial damage
  > The pilot’s failure to establish a proper airspeed and angle-of attack during takeoff in elevated density altitude and light tailwind conditions, which resulted in an aerodynamic stall.
- [NTSB CEN14LA301](https://openairdocs.org/ntsb/CEN14LA301.md): Grumman Acft ENG Cor-Schweizer G-164B · Lake City, AR · Accident · No injuries · Limited investigation · Final report · Jun 18, 2014 · N993QC · Substantial damage
  > The partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB CEN13LA504](https://openairdocs.org/ntsb/CEN13LA504.md): Gulfstream-Schweizer A/C Gulfstream AM G-164B · Walnut Ridge, AR · Accident · No injuries · Limited investigation · Final report · Aug 22, 2013 · N8402K · Substantial damage
  > The pilot's failure to properly set the engine power for takeoff, which resulted in the airplane subsequently settling into terrain.
- [NTSB CEN11LA610](https://openairdocs.org/ntsb/CEN11LA610.md): Grumman Acft ENG Cor-Schweizer G-164A · Monette, AR · Accident · No injuries · Limited investigation · Final report · Aug 29, 2011 · N48378 · Substantial damage
  > The fracture of the throttle cable in tensile overstress because of wear damage, which resulted in the partial loss of engine power.
- [NTSB CEN11LA484](https://openairdocs.org/ntsb/CEN11LA484.md): Schweizer G-164B · Cash, AR · Accident · No injuries · Limited investigation · Final report · Jun 11, 2011 · N3629C · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN11CA174](https://openairdocs.org/ntsb/CEN11CA174.md): Gulfstream-Schweizer A/C Gulfstream AM G-164B · Walnut Ridge, AR · Accident · No injuries · Data collection · Final report · May 10, 2011 · N8402K · Substantial damage
  > The pilot's failure to maintain directional control while landing with a left quartering tailwind and wind gusts.
- [NTSB CEN11LA335](https://openairdocs.org/ntsb/CEN11LA335.md): Grumman Acft ENG Cor-Schweizer G-164A · Bono, AR · Accident · No injuries · Limited investigation · Final report · May 9, 2011 · N8930H · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN11CA006](https://openairdocs.org/ntsb/CEN11CA006.md): Rockwell International S-2R · Texarkana, AR · Accident · No injuries · Data collection · Final report · Oct 5, 2010 · N8432V · Substantial damage
  > The loss of engine power due to cracked engine cylinder.
- [NTSB CEN10LA555](https://openairdocs.org/ntsb/CEN10LA555.md): Aero Commander S2R · Pocahontas, AR · Accident · Serious injuries · Limited investigation · Final report · Sep 23, 2010 · N8820Q · Destroyed
  > The pilot's failure to abort the takeoff in a timely manner. Contributing to the accident was the weight of the airplane and the high ambient temperature.
- [NTSB CEN10CA582](https://openairdocs.org/ntsb/CEN10CA582.md): Air Tractor AT-301 · Atkins, AR · Accident · No injuries · Data collection · Final report · Sep 17, 2010 · N2309F · Substantial damage
  > A partial loss of engine power during low-altitude flight for undetermined reasons.
- [NTSB CEN10LA236](https://openairdocs.org/ntsb/CEN10LA236.md): Aero Commander S2R · DeWitt, AR · Accident · 1 fatal · Limited investigation · Final report · May 3, 2010 · N5531X · Substantial damage
  > The pilot did not maintain clearance from terrain for undetermined reasons.
- [NTSB CEN09LA239](https://openairdocs.org/ntsb/CEN09LA239.md): Air Tractor AT-301 · Corning, AR · Accident · No injuries · Limited investigation · Final report · Apr 7, 2009 · N36597 · Substantial damage
  > A loss of engine power due to the failure of the number one engine cylinder for undetermined reasons.
- [NTSB DEN08CA089](https://openairdocs.org/ntsb/DEN08CA089.md): Grumman-Schweizer G-164C · De Witt, AR · Accident · No injuries · Data collection · Final report · May 5, 2008 · N6671K · Substantial damage
  > The pilot's improper decision to attempt to close the canopy in flight, and his diverted attention resulting in the airplane impacting the terrain. Contributing to the accident was the excessively worn canopy latch.
- [NTSB CHI07CA230](https://openairdocs.org/ntsb/CHI07CA230.md): Gulfstream-Schweizer Gulfstream AM G-164B · Walnut Ridge, AR · Accident · Minor injuries · Data collection · Final report · Jul 23, 2007 · N8402K · Substantial damage
  > The pilot's improper decision to takeoff with a tailwind which resulted in a collision with terrain immediately after liftoff. Factors contributing to the accident were the tailwind and the levee.
- [NTSB CHI07CA206](https://openairdocs.org/ntsb/CHI07CA206.md): Grumman G-164B · Alicia, AR · Accident · No injuries · Data collection · Final report · Jul 11, 2007 · N8066K · Substantial damage
  > A loss of engine power for undetermined reasons. Factors associated with the accident were the low altitude at which the loss of power occurred and the flooded rice field in which the airplane was landed.
- [NTSB CHI07CA163](https://openairdocs.org/ntsb/CHI07CA163.md): Schweizer G-164B · Walnut Ridge, AR · Accident · Minor injuries · Data collection · Final report · Jun 5, 2007 · N3627B · Substantial damage
  > The pilot's failure to maintain directional control of the airplane upon landing, which resulted in the airplane impacting a rice levee. The rice levee and the tailwind condition were contributing factors to the accident.
- [NTSB CHI07CA144](https://openairdocs.org/ntsb/CHI07CA144.md): Gulfstream-Schweizer Gulfstream AM G-164B · Walnut Ridge, AR · Accident · No injuries · Data collection · Final report · May 14, 2007 · N8402K · Substantial damage
  > A non-mechanical loss of engine power during the takeoff roll due to fuel contamination. An additional cause was the pilot's inadequate preflight inspection. A factor in the accident was the soft ground.
- [NTSB DFW06LA130](https://openairdocs.org/ntsb/DFW06LA130.md): Grumman G-164A · DeWitt, AR · Accident · 1 fatal · Limited investigation · Final report · May 18, 2006 · N6629 · 2 aircraft · Substantial damage
  > The failure by both pilots to maintain adequate visual lookout and the Grumman G-164A pilot's impairment caused by the recent use of marijuana.
- [NTSB DFW05CA177](https://openairdocs.org/ntsb/DFW05CA177.md): Grumman-Schweizer G-164C · Gillett, AR · Accident · No injuries · Data collection · Final report · Jul 1, 2005 · N6626K · Substantial damage
  > The loss of engine power resulting from a disconnected discharge pressure line at the fuel control unit. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB DFW05CA166](https://openairdocs.org/ntsb/DFW05CA166.md): Rockwell International S-2R · Watson, AR · Accident · No injuries · Data collection · Final report · Jun 11, 2005 · N8856Q · Substantial damage
  > The loss of engine power for undetermined reasons and the pilot's failure to maintain adequate airspeed which resulted in a stall.
- [NTSB DFW05CA095](https://openairdocs.org/ntsb/DFW05CA095.md): Ayres S-2R · Marvell, AR · Accident · No injuries · Data collection · Final report · Mar 11, 2005 · N8422V · Substantial damage
  > The pilot's failure to maintain directional control while landing. A contributing factor was gusty winds.
- [NTSB DFW05CA094](https://openairdocs.org/ntsb/DFW05CA094.md): Grumman G-164A · Tuckerman, AR · Accident · No injuries · Data collection · Final report · Feb 25, 2005 · N8501H · Substantial damage
  > The loss of engine power as result of the failure of the number nine cylinder.
- [NTSB FTW04CA184](https://openairdocs.org/ntsb/FTW04CA184.md): Grumman G-164C · Tiller, AR · Accident · No injuries · Data collection · Final report · Jul 16, 2004 · N6555K · Substantial damage
  > The pilot's inability to maintain control of the airplane while landing due to a brake system failure.
- [NTSB FTW04LA150](https://openairdocs.org/ntsb/FTW04LA150.md): Air Tractor AT-301 · Cotton Plant, AR · Accident · No injuries · Limited investigation · Final report · Jun 4, 2004 · N3166U · Substantial damage
  > The loss of engine power due to fuel exhaustion. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW02LA111](https://openairdocs.org/ntsb/FTW02LA111.md): Grumman G-164A · Wynne, AR · Accident · No injuries · Limited investigation · Final report · Apr 4, 2002 · N8916H · Substantial damage
  > The inadequate supervision by the flight instructor of the pilot who was receiving instruction resulting in the excessive application of the brakes during the landing roll resulting in a nose over. A factor was the gusty crosswind conditions.
- [NTSB FTW00LA097](https://openairdocs.org/ntsb/FTW00LA097.md): Grumman-Schweizer G-164A · Gillett, AR · Accident · No injuries · Limited investigation · Final report · Mar 13, 2000 · N9785 · Substantial damage
  > The cracked #8 cylinder resulting in failure of the cylinder. A factor was the plowed/furrowed terrain.
- [NTSB FTW99LA225](https://openairdocs.org/ntsb/FTW99LA225.md): Rockwell S-2R · Dermott, AR · Accident · No injuries · Limited investigation · Final report · Aug 16, 1999 · N4896X · Substantial damage
  > The loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW99LA220](https://openairdocs.org/ntsb/FTW99LA220.md): Air Tractor AT-401 · Humphrey, AR · Accident · No injuries · Limited investigation · Final report · Aug 12, 1999 · N1031Q · Substantial damage
  > Fuel exhaustion as a result of the pilot's failure to refuel the airplane.
- [NTSB FTW98FA272](https://openairdocs.org/ntsb/FTW98FA272.md): Ayres S2R-R1340 · Humphrey, AR · Accident · 1 fatal · Field investigation · Final report · Jun 18, 1998 · N4020G · Destroyed
  > The pilot's visual lookout was inadequate for undetermined reasons.
- [NTSB FTW98LA259](https://openairdocs.org/ntsb/FTW98LA259.md): Ayres S2R · Watson, AR · Accident · No injuries · Limited investigation · Final report · Jun 5, 1998 · N4007Y · Substantial damage
  > The partial loss of engine power due to the disconnection of the propeller governor control as a result of the stripped threads on the propeller governor control push-pull rod. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW98LA252](https://openairdocs.org/ntsb/FTW98LA252.md): Grumman-Schweizer G-164B · Coy, AR · Accident · No injuries · Limited investigation · Final report · Jun 1, 1998 · N943QC · Substantial damage
  > failure of the left main tire, which resulted in the pilot's inability to maintain directional control of the airplane during the landing roll.
- [NTSB FTW97LA136](https://openairdocs.org/ntsb/FTW97LA136.md): Grumman G-164A · Swifton, AR · Accident · 1 fatal · Limited investigation · Final report · Mar 22, 1997 · N8922H · Destroyed
  > the pilot's improper in-flight planning/decision and failure to maintain positive control of the airplane, while performing an aerobatic maneuver.
- [NTSB FTW96LA251](https://openairdocs.org/ntsb/FTW96LA251.md): Air Tractor AT-401 · Cash, AR · Accident · No injuries · Limited investigation · Final report · Jun 15, 1996 · N1004W · Substantial damage
  > The partial loss of engine power due to fuel contamination. A factor was the lack of suitable terrain available for the forced landing.
- [NTSB FTW96LA236](https://openairdocs.org/ntsb/FTW96LA236.md): Rockwell S-2R · Dumas, AR · Accident · Minor injuries · Limited investigation · Final report · Jun 4, 1996 · N3646X · Substantial damage
  > Failure of all personnel concerned to identify the unsafe/hazardous condition, which resulted from a visual restriction, due to trees near the intersection of the road and runway.
- [NTSB FTW96LA135](https://openairdocs.org/ntsb/FTW96LA135.md): Rockwell S-2R · Winchester, AR · Accident · Minor injuries · Limited investigation · Final report · Feb 27, 1996 · N431BL · Substantial damage
  > Failure of the engine master rod. A factor relating to the accident was: the lack of suitable terrain for a forced landing, due to the proximity of a power line and trees.
- [NTSB FTW96LA007](https://openairdocs.org/ntsb/FTW96LA007.md): Grumman G-164A · Hamburg, AR · Accident · Minor injuries · Limited investigation · Final report · Oct 5, 1995 · N9873 · Substantial damage
  > Loss of engine power due to a cylinder failure. A factor relating to the accident was: the lack of suitable terrain for the forced landing.
- [NTSB FTW95LA301](https://openairdocs.org/ntsb/FTW95LA301.md): Air Tractor AT-401 · Cash, AR · Accident · No injuries · Limited investigation · Final report · Jul 11, 1995 · N1004W · Substantial damage
  > Engine power loss due to partial failure of one magneto combined with total failure of the other magneto. A factor was the lack of suitable terrain for a forced landing.
- [NTSB FTW95LA283](https://openairdocs.org/ntsb/FTW95LA283.md): Aero Commander S2R · Widener, AR · Accident · No injuries · Limited investigation · Final report · Jul 7, 1995 · N8972Q · Substantial damage
  > Loss of engine power for an undetermined reason. The proximity of power lines (obstruction) was a related factor.
- [NTSB FTW95LA282](https://openairdocs.org/ntsb/FTW95LA282.md): Aero Commander S2R · Newport, AR · Accident · No injuries · Limited investigation · Final report · Jul 6, 1995 · N5654X · Substantial damage
  > A disconnected throttle push pull rod, due to inadequate maintenance. A factor relating to the accident was: the lack of suitable terrain for the forced landing.
- [NTSB FTW95LA213](https://openairdocs.org/ntsb/FTW95LA213.md): Air Tractor AT-301 · Caldwell, AR · Accident · No injuries · Limited investigation · Final report · May 19, 1995 · N3655Z · Substantial damage
  > The loss of power due to a crack in the #4 cylinder. Factors were the lack of suitable terrain for the forced landing and proper touchdown point not possible.
- [NTSB FTW95LA145](https://openairdocs.org/ntsb/FTW95LA145.md): Aero Commander S2R · Gillett, AR · Accident · No injuries · Limited investigation · Final report · Mar 23, 1995 · N5561X · Substantial damage
  > The engine main rod bearing seized to the crankshaft due to worn master rod metal pieces blocking the oil passages. A factor was an engine overhaul was not performed by company maintenance personnel.
- [NTSB FTW94LA306](https://openairdocs.org/ntsb/FTW94LA306.md): Air Tractor AT-401 · Mcgehee, AR · Accident · No injuries · Limited investigation · Final report · Sep 20, 1994 · N4549N · Substantial damage
  > The loss of engine power due to undetermined reasons. A factor was the unsuitable terrain.
- [NTSB FTW94LA256](https://openairdocs.org/ntsb/FTW94LA256.md): Air Tractor AT-401 · Mcgehee, AR · Accident · No injuries · Limited investigation · Final report · Aug 2, 1994 · N45297 · Substantial damage
  > Total loss of engine power as the engine seized due to a blower bearing failure. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW94LA238](https://openairdocs.org/ntsb/FTW94LA238.md): Rockwell S-2R · Winchester, AR · Accident · Serious injuries · Limited investigation · Final report · Jul 15, 1994 · N4903X · Substantial damage
  > The loss of power due to the number one cylinder head cracking. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW94LA211](https://openairdocs.org/ntsb/FTW94LA211.md): Grumman-Schweizer G-164A · Dumas, AR · Accident · No injuries · Limited investigation · Final report · Jun 25, 1994 · N4222P · Destroyed
  > The pilot's failure to establish the proper airspeed before beginning a turn after takeoff.
- [NTSB FTW94LA174](https://openairdocs.org/ntsb/FTW94LA174.md): Grumman G-164A · Stuttgart, AR · Accident · No injuries · Limited investigation · Final report · May 20, 1994 · N9678 · Substantial damage
  > Was the pilots failure to maintain terrain clearance.

Next page: https://openairdocs.org/ntsb.md?engine=52016&state=AR&page=2

## 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."eventStateOrRegion" = 'AR' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52016'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52016&state=AR

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