# 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 2 of 5 · 207 cases

## Cases, newest first

- [NTSB FTW94LA164](https://openairdocs.org/ntsb/FTW94LA164.md): Aero Commander S2R · Monticello, AR · Accident · No injuries · Limited investigation · Final report · May 17, 1994 · N4080X · Substantial damage
  > The loss of engine power due to the number 2 cylinder cracking. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW94LA131](https://openairdocs.org/ntsb/FTW94LA131.md): Gulfstream G-164B · Delaplaine, AR · Accident · Minor injuries · Limited investigation · Final report · Apr 21, 1994 · N8402K · Substantial damage
  > The loss of engine power for undetermined reasons. A factor was the low altitude at which the power loss occurred.
- [NTSB FTW93LA230](https://openairdocs.org/ntsb/FTW93LA230.md): Aero Commander S2R · England, AR · Accident · No injuries · Limited investigation · Final report · Aug 4, 1993 · N5570X · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB DEN93LA081](https://openairdocs.org/ntsb/DEN93LA081.md): Air Tractor AT-401 · Dermott, AR · Accident · No injuries · Limited investigation · Final report · Jul 15, 1993 · N1009T · Substantial damage
  > Power loss due to the total failure of the engine's master rod. Factors were an improper engine overhaul and the lack of suitable terrain for a forced landing.
- [NTSB FTW93LA180](https://openairdocs.org/ntsb/FTW93LA180.md): Grumman G-164A · Dumas, AR · Accident · No injuries · Limited investigation · Final report · Jun 7, 1993 · N6622Q · Substantial damage
  > The pilot's inadequate compensation for wind conditions.
- [NTSB FTW93LA174](https://openairdocs.org/ntsb/FTW93LA174.md): Grumman G-164B · Stuttgart, AR · Accident · No injuries · Limited investigation · Final report · Jun 2, 1993 · N6695K · Substantial damage
  > The pilot's selection of the downwind runway for landing. Factors were the wind conditions and the left brake malfunction for undetermined reasons
- [NTSB FTW93LA167](https://openairdocs.org/ntsb/FTW93LA167.md): Grumman G-164B · Stuttgart, AR · Accident · No injuries · Limited investigation · Final report · May 26, 1993 · N8405K · Destroyed
  > Pilot's failure to maintain clearance from the electrical wires.
- [NTSB FTW93LA156](https://openairdocs.org/ntsb/FTW93LA156.md): Grumman G-164A · Trumann, AR · Accident · No injuries · Limited investigation · Final report · May 15, 1993 · N6556 · Substantial damage
  > Pilot's failure to maintain terrain clearance. A factor was the diverted attention of the pilot.
- [NTSB DEN93LA051](https://openairdocs.org/ntsb/DEN93LA051.md): Grumman G-164A · Truman, AR · Accident · No injuries · Limited investigation · Final report · Apr 28, 1993 · N31182 · Destroyed
  > A power loss for undetermined reasons. A factor was: the lack of suitable terrain for the forced landing.
- [NTSB FTW92DPG11](https://openairdocs.org/ntsb/FTW92DPG11.md): Grumman G-164B · Fouke, AR · Accident · No injuries · Final report · Aug 4, 1992 · N3630U · Substantial damage
  > The pilot's selection of unsuitable terrain for takeoff. Factors were the trees and the soft field.
- [NTSB FTW92DPG10](https://openairdocs.org/ntsb/FTW92DPG10.md): Rockwell S2R-R3S · Minturn, AR · Accident · No injuries · Final report · Jul 24, 1992 · N8441V · Substantial damage
  > The loss of engine power and the encounter with unsuitable terrain during the forced landing.
- [NTSB FTW92DPG09](https://openairdocs.org/ntsb/FTW92DPG09.md): Air Tractor AT-301A · Fisher, AR · Accident · Serious injuries · Final report · Jul 15, 1992 · N3652B · Substantial damage
  > A loss of engine power for undetermined reasons and the failure of the pilot to maintain airspeed above a stall.
- [NTSB FTW92DPG06](https://openairdocs.org/ntsb/FTW92DPG06.md): Grumman G-164A · Swifton, AR · Accident · No injuries · Final report · Jul 6, 1992 · N8922H · Substantial damage
  > Loss of engine power. A factor was the lack of suitable terrain for forced landing.
- [NTSB FTW92LA148](https://openairdocs.org/ntsb/FTW92LA148.md): Grumman G-164A · Oil Trough, AR · Accident · No injuries · Limited investigation · Final report · Jun 5, 1992 · N8732H · Destroyed
  > The pilot's selection of unsuitable terrain for takeoff.
- [NTSB FTW92LA143](https://openairdocs.org/ntsb/FTW92LA143.md): Grumman G-164B · Walnut Ridge, AR · Accident · Minor injuries · Limited investigation · Final report · May 23, 1992 · N8380K · Substantial damage
  > The pilot's failure to maintain adequate terrain clearance. A factor was the loss of power as result of the uncoupling of the engine and the propeller.
- [NTSB FTW92LA118](https://openairdocs.org/ntsb/FTW92LA118.md): Air Tractor AT-301 · Almyra, AR · Accident · No injuries · Limited investigation · Final report · Apr 22, 1992 · N4430S · Substantial damage
  > The pilot's improper judgement of the descent rate and his inadequate pull up at the bottom.
- [NTSB FTW91DPG18](https://openairdocs.org/ntsb/FTW91DPG18.md): Grumman G-164A · Dewitt, AR · Accident · No injuries · Final report · Jul 31, 1991 · N5076 · Substantial damage
  > The pilot's failure to maintain proper glidepath. A factor was the berm at the approach end of the runway.
- [NTSB FTW91DPG14](https://openairdocs.org/ntsb/FTW91DPG14.md): Grumman G-164A · Swifton, AR · Accident · No injuries · Final report · Jul 15, 1991 · N6615 · Destroyed
  > Partial failure of the hopper, chemical fire, and the failure of the landing gear. A factor ws the loss of visual outside reference.
- [NTSB FTW91DPG06](https://openairdocs.org/ntsb/FTW91DPG06.md): Grumman G-164A · Gillett, AR · Accident · No injuries · Final report · May 14, 1991 · N9785 · Substantial damage
  > The windshiled becoming obscured by aerial application spray and the resultant limited vision from the cockpit.
- [NTSB FTW91DPG02](https://openairdocs.org/ntsb/FTW91DPG02.md): Grumman G-164A · Light, AR · Accident · No injuries · Final report · Feb 23, 1991 · N7493 · Substantial damage
  > The pilot's selection of the downwind runway for landing. A factor was the tailwind.
- [NTSB FTW90DPG13](https://openairdocs.org/ntsb/FTW90DPG13.md): Grumman G-164A · Luxora, AR · Accident · No injuries · Final report · Aug 30, 1990 · N5213 · Substantial damage
  > A partial power loss due to failure of the number five connecting rod. A factor was the soft terrain in which the forced landing was made.
- [NTSB FTW90DPG08](https://openairdocs.org/ntsb/FTW90DPG08.md): Air Tractor AT-301 · Corning, AR · Accident · Serious injuries · Final report · Aug 14, 1990 · N4433S · Substantial damage
  > Blockage of the carburetor Air intake by a collapsed Air induction hose due to improper maintenance by an unknown party.
- [NTSB FTW90DPG04](https://openairdocs.org/ntsb/FTW90DPG04.md): Air Tractor 301A · Foreman, AR · Accident · No injuries · Final report · Jul 30, 1990 · N31631 · Destroyed
  > The pilot's inadvertent stall/mush.
- [NTSB MKC90LA147](https://openairdocs.org/ntsb/MKC90LA147.md): Grumman G-164A · Egypt, AR · Accident · No injuries · Limited investigation · Final report · Jul 12, 1990 · N8930H · Substantial damage
  > The pilot's failure to maintain directional control. A factor related to the accident was the soft/muddy area on the runway.
- [NTSB MKC90LA129](https://openairdocs.org/ntsb/MKC90LA129.md): Rockwell S2R · Tilton, AR · Accident · No injuries · Limited investigation · Final report · Jun 15, 1990 · N8421V · Substantial damage
  > Failure of the engine blower(supercharger). Related to the accident was the soft/wet terrain, where the forced landing was performed.
- [NTSB MKC90LA080](https://openairdocs.org/ntsb/MKC90LA080.md): Grumman G-164A · Mounds, AR · Accident · No injuries · Limited investigation · Final report · Apr 4, 1990 · N6556 · Substantial damage
  > The pilot's improper compensation for wind conditions. Factors related to the accident were: the pilot's selection of the wrong runway and the resultant tailwind condition.
- [NTSB MKC90LA079](https://openairdocs.org/ntsb/MKC90LA079.md): Rockwell S-2R · Des Arc, AR · Accident · No injuries · Limited investigation · Final report · Apr 3, 1990 · N4183X · Substantial damage
  > Failure of the engine fuel pump.
- [NTSB MKC90LA076](https://openairdocs.org/ntsb/MKC90LA076.md): Grumman G-164B · Newport, AR · Accident · No injuries · Limited investigation · Final report · Mar 28, 1990 · N3630U · Substantial damage
  > Failure of the pilot to maintain proper runway alignment, which resulted in an encounter with soft/wet (muddy) terrain and a subsequent nose over of the aircraft.
- [NTSB MKC89LA190](https://openairdocs.org/ntsb/MKC89LA190.md): Air Tractor AT-401 · Wabbaseka, AR · Accident · No injuries · Limited investigation · Final report · Aug 26, 1989 · N10103 · Substantial damage
  > Improper planning/decision by the pilot which resulted in his failure to maintain clearance from the tall vegetation (grass). The tall vegetation & high density altitude were considered to be contributing factors.
- [NTSB MKC89LA170](https://openairdocs.org/ntsb/MKC89LA170.md): Grumman G-164B · Portland, AR · Accident · No injuries · Limited investigation · Final report · Jul 28, 1989 · N8116K · Substantial damage
  > Engine failure due to failure of an engine cylinder.
- [NTSB MKC89LA150](https://openairdocs.org/ntsb/MKC89LA150.md): Aero Commander S2R · Jonesboro, AR · Accident · No injuries · Limited investigation · Final report · Jul 3, 1989 · N8976Q · Destroyed
  > The pilot's encounter with unsuitable terrain during a forced landing made necessary by the separation of three feet of one of the propeller blades.
- [NTSB MKC89LA129](https://openairdocs.org/ntsb/MKC89LA129.md): Gulfstream-Schweizer G-164B · Wynne, AR · Accident · Minor injuries · Limited investigation · Final report · Jun 7, 1989 · N8063K · Substantial damage
  > Unsuitable terrain selected by the pilot. A contributing factor was the rough/uneven landing area.
- [NTSB MKC89LA079](https://openairdocs.org/ntsb/MKC89LA079.md): Grumman G-164A · Stuttgart, AR · Accident · Minor injuries · Limited investigation · Final report · Mar 11, 1989 · N9874 · Substantial damage
  > Failure of the engine blower assembly drive shaft, while maneuvering at low altitude, and failure of the pilot to maintain adequate airspeed, which resulted in a stall before he could land.
- [NTSB MKC88LA162](https://openairdocs.org/ntsb/MKC88LA162.md): Grumman G-164A · Elaine, AR · Accident · No injuries · Limited investigation · Final report · Aug 22, 1988 · N6661Q · Substantial damage
  > During an aerial application operation, the pilot said that immediately after breaking ground on takeoff, the engine quit. He attempted to re-land on the remaining available runway, but ran off the end, hitting a ditch and nosing over. Cause of the engine…
- [NTSB MKC88LA161](https://openairdocs.org/ntsb/MKC88LA161.md): Grumman G-164A · Gillett, AR · Accident · No injuries · Limited investigation · Final report · Aug 20, 1988 · N6567 · Substantial damage
  > While en route to engage in an aerial application operation, the plt said the engine began to misfire and cut out. Unable to correct the malfunction, the plt dumped his chemical load and began returning to the departure airstrip. En route, he felt he would…
- [NTSB MKC88LA158](https://openairdocs.org/ntsb/MKC88LA158.md): Grumman G-164B · Humphrey, AR · Accident · No injuries · Limited investigation · Final report · Aug 16, 1988 · N8405K · Substantial damage
  > While attempting to land on a narrow dirt road bordered by crops, the plt said he contacted the high vegetation on the right side. The acft began to veer to the right. The plt attempted to steer to the left and veered off the roadway into a ditch and nosed…
- [NTSB MKC88LA159](https://openairdocs.org/ntsb/MKC88LA159.md): Rockwell S-2R · Swifton, AR · Accident · No injuries · Limited investigation · Final report · Aug 15, 1988 · N8856Q · Substantial damage
  > Shortly after takeoff during an aerial application operation, the pilot said he was unable to establish a positive climb. After traveling about 1 mile, he elected to dump his dry fertilizer load. When he dumped the load, the increased aerodynamic drag caused…
- [NTSB MKC88DPG02](https://openairdocs.org/ntsb/MKC88DPG02.md): Snow 600-S2C · Almyra, AR · Accident · 2 fatal · Final report · Jul 30, 1988 · N1671S · 2 aircraft · Destroyed
  > Two ag aircraft were spraying the same field. According to several witnesses, 1671S was heading south and 3660X was heading east. Both aircraft were actively engaged in the spraying operation but did not seem to the witnesses to be coordinating with each…
- [NTSB MKC88LA141](https://openairdocs.org/ntsb/MKC88LA141.md): Rockwell S2R · O'Kean, AR · Accident · No injuries · Limited investigation · Final report · Jul 28, 1988 · N3665X · Substantial damage
  > While performing an aerial application operation, the plt said he experienced a total powerplant failure. He attempted an emergency ldg in a cultivated rice field. During the ldg attempt, the aircraft sustained substantial damage to the propeller, landing…
- [NTSB MKC88LA137](https://openairdocs.org/ntsb/MKC88LA137.md): Grumman G164B · Knobel, AR · Accident · No injuries · Limited investigation · Final report · Jul 26, 1988 · N2500W · Substantial damage
  > The plt said he had just completed an aerial application operation and was returning to his base airfield to re-load. While in a low level cruise, the engine quit abruptly, and an emergency ldg was attempted in a soft, muddy soy bean field. During the ldg…
- [NTSB MKC88LA122](https://openairdocs.org/ntsb/MKC88LA122.md): Rockwell S2R · Brinkley, AR · Accident · No injuries · Limited investigation · Final report · Jul 23, 1988 · N4080X · Substantial damage
  > During the take-off roll for an aerial application operation, the pilot said he lost his left wheel braking capability. He continued the take-off, flew to the farm field to be treated, applied the load, then returned to a near by alternate landing strip…
- [NTSB MKC88LA131](https://openairdocs.org/ntsb/MKC88LA131.md): Rockwell S2R · Swifton, AR · Accident · No injuries · Limited investigation · Final report · Jul 18, 1988 · N8441V · Substantial damage
  > The PIC was conducting ag-spray maneuvers dispensing liquid fertilizer to rice. During a procedure turn to return to the field the eng quit. The PIC chose an open field abt 60 degrees to his rt to land the aircraft. The field was wet, soft and rough. The acft…
- [NTSB MKC88LA126](https://openairdocs.org/ntsb/MKC88LA126.md): Rockwell S2R · England, AR · Accident · No injuries · Limited investigation · Final report · Jul 15, 1988 · N4186X · Substantial damage
  > The plt said he had been flying under power lines during an aerial application operation, and while performing his downwind pass, an updraft caused him to collide with the bottom wires. He lost control of the aircraft and collided with the terrain.
- [NTSB MKC88LA116](https://openairdocs.org/ntsb/MKC88LA116.md): Grumman G-164A · Cotton Plant, AR · Accident · No injuries · Limited investigation · Final report · Jun 22, 1988 · N8644H · Substantial damage
  > The pilot did not adequately secure the aircraft prior to hand-propping the engine. The engine started and resulted in the aircraft taxiing without a pilot at the controls. The pilot-less aircraft impacted a utility pole causing substantial damage.
- [NTSB MKC88LA108](https://openairdocs.org/ntsb/MKC88LA108.md): Grumman G-164-A · Wynne, AR · Accident · No injuries · Limited investigation · Final report · Jun 6, 1988 · N9695 · Substantial damage
  > Following the takeoff from a private strip near Wynne, Arkansas, the pilot reported that he failed to establish and maintain an adequate angle of climb with the heavily loaded condition of the aircraft. The aircraft impacted trees in the flight path, then…
- [NTSB MKC88LA087](https://openairdocs.org/ntsb/MKC88LA087.md): Grumman G-164B · Waldenburg, AR · Accident · No injuries · Limited investigation · Final report · May 6, 1988 · N6782K · Substantial damage
  > The acft was being positioned for an aerial application operation. While landing, the acft struck a 1.5 ft levee at the end of the private grass strip. Subsequently, the main gear sheared off, the wings were buckled & the prop was damaged.
- [NTSB MKC87DPG03](https://openairdocs.org/ntsb/MKC87DPG03.md): Air Tractor AT-301 · Tillar, AR · Accident · Serious injuries · Final report · Aug 27, 1987 · N3159X · Substantial damage
  > The pilot stated that the prop RPM became erratic. On approach, the prop ran completely out of control, causing the aircraft to nose down into a plowed field just short of the landing area. The a/c hit on the main landing gear, broke them off, then it nosed…
- [NTSB MKC87LA168](https://openairdocs.org/ntsb/MKC87LA168.md): Grumman G-164B · Holly Grove, AR · Accident · No injuries · Limited investigation · Final report · Aug 26, 1987 · N8365K · Substantial damage
  > The pilot lost control on takeoff roll, ran off the side of the runway and impacted a dirt bank. The aircraft came to rest in an inverted position. Investigation revealed no preimpact mechanical malfunctions/failures.
- [NTSB MKC87LA050](https://openairdocs.org/ntsb/MKC87LA050.md): Grumman G-164A-600 · Hazen, AR · Accident · Minor injuries · Limited investigation · Final report · Feb 14, 1987 · N5495 · Destroyed
  > The pilot stated that he had flown six loads of wheat seeds and was returning to a private airstrip for another load when he ran out of daylight while on final approach to a landing. During the time he was considering the option of a rejected landing and a…
- [NTSB MKC86LA155](https://openairdocs.org/ntsb/MKC86LA155.md): Schweizer G-164B · Harrisburg, AR · Accident · No injuries · Limited investigation · Final report · Jul 23, 1986 · N8494K · Substantial damage
  > The aerial application airplane was departing from a short strip on a hot day. The pilot said the airplane would not climb and he was forced to put it down in a flooded rice field where it nosed forward to the inverted position. The pilot stated he should…

Next page: https://openairdocs.org/ntsb.md?engine=52016&state=AR&page=3

## 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&page=2&state=AR

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