# NTSB investigations: Pratt & Whitney R1340 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 15 of 34 · 1,656 cases

## Cases, newest first

- [NTSB LAX93LA189](https://openairdocs.org/ntsb/LAX93LA189.md): Schweizer G-164B · Sacramento, CA · Accident · Serious injuries · Limited investigation · Final report · Apr 27, 1993 · N8307K · Substantial damage
  > failure of the pilot in command to maintain adequate airspeed during a low altitude maneuvering turn which resulted in an inadvertent stall.
- [NTSB MIA93LA104](https://openairdocs.org/ntsb/MIA93LA104.md): Air Tractor AT-401 · Fort Pierce, FL · Accident · Minor injuries · Limited investigation · Final report · Apr 17, 1993 · N7316L · Destroyed
  > Failure of the no. 2 cylinder in fatigue for undetermined reasons, over unsuitable terrain. The lack of suitale terrain for the forced landing was a factor.
- [NTSB LAX93LA167](https://openairdocs.org/ntsb/LAX93LA167.md): Aero Commander ST-R · San Jose, CA · Accident · Serious injuries · Limited investigation · Final report · Apr 7, 1993 · N1783S · Destroyed
  > The pilot's failure to maintain adequate airspeed resulting in an inadvertent stall/spin.
- [NTSB SEA93LA085](https://openairdocs.org/ntsb/SEA93LA085.md): Schweizer G-164A · Walla Walla, WA · Accident · Minor injuries · Limited investigation · Final report · Mar 30, 1993 · N8734H · Destroyed
  > A loss of engine power for undetermined reasons. The lack of a suitable landing area was a factor.
- [NTSB SEA93LA078](https://openairdocs.org/ntsb/SEA93LA078.md): Schweizer G-164B-600 · Quincy, WA · Accident · No injuries · Limited investigation · Final report · Mar 18, 1993 · N7503L · Substantial damage
  > Unsuitable terrain encountered during a forced landing after an engine cylinder assembly had separated. Factors include a snowbank.
- [NTSB FTW93LA075](https://openairdocs.org/ntsb/FTW93LA075.md): North American AT-6D · Fort Worth, TX · Accident · No injuries · Limited investigation · Final report · Jan 23, 1993 · N101NZ · Substantial damage
  > The pilot's failure to compensate for the crosswind. A factor was the crosswind.
- [NTSB LAX93LA098](https://openairdocs.org/ntsb/LAX93LA098.md): Grumman G-164A · Lost Hills, CA · Accident · No injuries · Limited investigation · Final report · Jan 22, 1993 · N6654 · Substantial damage
  > The pilot's inability to maintain directional control during the landing roll out due to a binding left brake master cylinder.
- [NTSB MIA92LA179](https://openairdocs.org/ntsb/MIA92LA179.md): Air Tractor AT-301 · Satartia, MS · Accident · No injuries · Limited investigation · Final report · Sep 10, 1992 · N4333S · Substantial damage
  > Failure of the brake system due to installation of a bogus part by an unknown person. Directional control by the pilot in command was not possible.
- [NTSB CHI92DTG05](https://openairdocs.org/ntsb/CHI92DTG05.md): Air Tractor AT-301 · Alice, ND · Accident · Minor injuries · Final report · Sep 10, 1992 · N8823S · Substantial damage
  > Complete loss of engine power as a result of the partial failure of four pistons.
- [NTSB ATL92LA172](https://openairdocs.org/ntsb/ATL92LA172.md): Ayres S-2R · Douglas, GA · Accident · No injuries · Limited investigation · Final report · Sep 4, 1992 · N4007H · Substantial damage
  > The pilot's failure to check weather prior to the flight. A factor was the dark night.
- [NTSB LAX92LA358](https://openairdocs.org/ntsb/LAX92LA358.md): Grumman G-164A · Laveen, AZ · Accident · No injuries · Limited investigation · Final report · Aug 19, 1992 · N5363 · Substantial damage
  > The failure of the pilot to maintain directional control of the aircraft during the landing roll.
- [NTSB FTW92DRD05](https://openairdocs.org/ntsb/FTW92DRD05.md): Grumman G-164 · Thibodaux, LA · Accident · Minor injuries · Final report · Aug 17, 1992 · N8916H · Substantial damage
  > The pilot's failure to maintain clearance from the wires.
- [NTSB LAX92LA340](https://openairdocs.org/ntsb/LAX92LA340.md): Grumman G-164B · Tolleson, AZ · Accident · No injuries · Limited investigation · Final report · Aug 9, 1992 · N6809K · Substantial damage
  > The pilot's selection of unsuitable terrain for takeoff. Contributing to this accident was the ravine that crossed the runway.
- [NTSB MIA92LA160](https://openairdocs.org/ntsb/MIA92LA160.md): Air Tractor AT-301 · Redwood, MS · Accident · No injuries · Limited investigation · Final report · Aug 7, 1992 · N3165A · Substantial damage
  > Improper maintenance of the airplane by an unknown person.
- [NTSB SEA92LA174](https://openairdocs.org/ntsb/SEA92LA174.md): Grumman G-164A · Paul, ID · Accident · No injuries · Limited investigation · Final report · Aug 4, 1992 · N4653 · Substantial damage
  > The pilot's selection of unsuitable terrain. The soft terrain was a factor.
- [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 LAX92LA325](https://openairdocs.org/ntsb/LAX92LA325.md): Schweizer G-164B · Visalia, CA · Accident · No injuries · Limited investigation · Final report · Jul 30, 1992 · N6892K · Substantial damage
  > The pilot's improper stowage of an aerosol spray can in the cockpit which caused an electrical short and an ensuing fire, and his failure to maintain directional control of the aircraft during the subsequent aborted takeoff.
- [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 LAX92LA274](https://openairdocs.org/ntsb/LAX92LA274.md): Grumman G-164A · Tulare, CA · Accident · 1 fatal · Limited investigation · Final report · Jul 1, 1992 · N8636H · Destroyed
  > An inflight hopper compartment fire due to the incompatibility of the chemical loads, and, the failure of the operator follow the cautionary directives of the chemical manufacturer.
- [NTSB FTW92DRA03](https://openairdocs.org/ntsb/FTW92DRA03.md): Schweizer G-164B · Bay City, TX · Accident · No injuries · Final report · Jun 20, 1992 · N8157K · Substantial damage
  > The pilot's inability to initiate a climb due to exceeding the takeoff capability of the airplane. A factor was the high grass on the airstrip.
- [NTSB ATL92LA124](https://openairdocs.org/ntsb/ATL92LA124.md): Grumman G-164A · Ft. Gaines, GA · Accident · No injuries · Limited investigation · Final report · Jun 14, 1992 · N7357 · Substantial damage
  > The pilot's inadequate preflight planning/preparation.
- [NTSB SEA92LA125](https://openairdocs.org/ntsb/SEA92LA125.md): Grumman G-164A · Coulee City, WA · Accident · No injuries · Limited investigation · Final report · Jun 11, 1992 · N8938H · Substantial damage
  > A loss of engine power for undetermined reasons. Factors include soft terrain.
- [NTSB DEN92LA056](https://openairdocs.org/ntsb/DEN92LA056.md): North American Harvard MK-II · Watkins, CO · Accident · No injuries · Limited investigation · Final report · Jun 8, 1992 · N90541 · Destroyed
  > The pilot inadvertently stalling the airplane. Factors included: the pilot's failure to maintain directional control on takeoff, and inadequate airspeed.
- [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 LAX92LA219](https://openairdocs.org/ntsb/LAX92LA219.md): Grumman G-164C · Butte City, CA · Accident · No injuries · Limited investigation · Final report · May 26, 1992 · N6596K · Substantial damage
  > The pilot's failure to follow normal procedures by selecting the wrong runway. Contributing to this accident was the pilot's premature lift off and the existing tailwind.
- [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 FTW92LA131](https://openairdocs.org/ntsb/FTW92LA131.md): Air Tractor AT-401 · Taft, TX · Accident · No injuries · Limited investigation · Final report · May 13, 1992 · N1518V · 2 aircraft · Substantial damage
  > The pilot of the other airplane delayed compensation for turbulence. A factor was the turbulence.
- [NTSB SEA92LA091](https://openairdocs.org/ntsb/SEA92LA091.md): Rockwell S2R · St. John, WA · Accident · No injuries · Limited investigation · Final report · May 5, 1992 · N8803Q · Substantial damage
  > The separation of the number 1 cylinder and remedial action by the PIC not possible. A factor contributing to the accident was: rough/uneven terrain.
- [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 FTW92LA094](https://openairdocs.org/ntsb/FTW92LA094.md): Grumman G-164A · Garwood, TX · Accident · No injuries · Limited investigation · Final report · Mar 18, 1992 · N5378 · Substantial damage
  > The loss of engine power due to rocker arm failure. A factor was the unsuitable terrain.
- [NTSB FTW92LA085](https://openairdocs.org/ntsb/FTW92LA085.md): Grumman G-164A · Valley Mills, TX · Accident · Minor injuries · Limited investigation · Final report · Mar 9, 1992 · N9828 · Substantial damage
  > Power loss due inadequate maintenance and the resultant multiple maintenance discrepancies. A factor was the wet terrain.
- [NTSB LAX92LA126](https://openairdocs.org/ntsb/LAX92LA126.md): Grumman G-164B · Dixon, CA · Accident · No injuries · Limited investigation · Final report · Feb 25, 1992 · N3633C · Substantial damage
  > The pilot's premature lift-off. Contributing to the accident was the inadvertent stall/mush and the soft dirt airstrip.
- [NTSB LAX92LA110](https://openairdocs.org/ntsb/LAX92LA110.md): Grumman G-164A · Greenfield, CA · Accident · No injuries · Limited investigation · Final report · Feb 5, 1992 · N8507H · Destroyed
  > The pilot's failure to maintain adequate altitude during an intentionally performed low altitude flight in mountainous terrain. Contributing factors related to the pilot's visual perception of the canyon area because of changes in the ambient lighting…
- [NTSB LAX92LA018](https://openairdocs.org/ntsb/LAX92LA018.md): Snow S2C · Bowie, AZ · Accident · No injuries · Limited investigation · Final report · Oct 17, 1991 · N1625S · Substantial damage
  > The failure of the pilot to maintain directional control after landing. The unfavorable wind condition was a related factor.
- [NTSB NYC91LA253](https://openairdocs.org/ntsb/NYC91LA253.md): North American T-6G · Manchester, NH · Accident · No injuries · Limited investigation · Final report · Sep 29, 1991 · N3167G · Substantial damage
  > The pilot's failure to maintain control. A factor was the unforecasted strong cross winds.
- [NTSB MIA91LA219](https://openairdocs.org/ntsb/MIA91LA219.md): Air Tractor AT-401 · Sumner, MS · Accident · Minor injuries · Limited investigation · Final report · Sep 16, 1991 · N1004W · Substantial damage
  > Failure of the no. 1 cylinder assembly.
- [NTSB LAX91LA392](https://openairdocs.org/ntsb/LAX91LA392.md): North American AT-6G · Reno, NV · Accident · Minor injuries · Limited investigation · Final report · Sep 12, 1991 · N29931 · Substantial damage
  > The failure of the pilot to maintain an adequate clearance between the aircraft and the ground while maneuvering around a pylon, which resulted in a loss of control during landing.
- [NTSB LAX91LA384](https://openairdocs.org/ntsb/LAX91LA384.md): North American AT-6D · Hayward, CA · Accident · No injuries · Limited investigation · Final report · Sep 2, 1991 · N3660V · Substantial damage
  > The failure of the pilot to maintain directional control of the aircraft while correcting an unwanted deviation.
- [NTSB LAX91LA362](https://openairdocs.org/ntsb/LAX91LA362.md): Schweizer G164B · Verona, CA · Accident · No injuries · Limited investigation · Final report · Aug 19, 1991 · N7501K · Substantial damage
  > The pilot's improper planning/decision to depart from a runway with high vegetation along the edge and subsequent collision with terrain.
- [NTSB LAX91LA364](https://openairdocs.org/ntsb/LAX91LA364.md): Grumman G-164 · Wasco, CA · Accident · No injuries · Limited investigation · Final report · Aug 12, 1991 · N4663 · Substantial damage
  > A total loss of engine power due to a fracture of the camshaft and the subsequent forced landing into a soft field.
- [NTSB CHI91DTG07](https://openairdocs.org/ntsb/CHI91DTG07.md): Ayres S2R · Drayton, ND · Accident · No injuries · Final report · Aug 7, 1991 · N4010H · Substantial damage
  > Misjudged clearance by the pilot. A factor related to the accident is overconfidence in personal ability.
- [NTSB SEA91LA200](https://openairdocs.org/ntsb/SEA91LA200.md): Rockwell S-2R · Murtaugh, ID · Accident · No injuries · Limited investigation · Final report · Aug 3, 1991 · N4865X · Substantial damage
  > The improper preflight planning/decision by the pilot, resulting in his attempt to takeoff with the aircraft loaded over maximum certificated gross takeoff weight.
- [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 FTW91DRD07](https://openairdocs.org/ntsb/FTW91DRD07.md): Grumman G-164B · Donaldsonville, LA · Accident · No injuries · Final report · Jul 28, 1991 · N573AF · Substantial damage
  > The mechanical failure of the propeller blade pitch positioning bolt. A factor was the lack of suitable terrain available for the forced landing.
- [NTSB CHI91DTG06](https://openairdocs.org/ntsb/CHI91DTG06.md): Ayres S2R · Drayton, ND · Accident · No injuries · Final report · Jul 20, 1991 · N8988Q · Substantial damage
  > That the pilot did not perform any preflight planning, and did not use the aircraft performance data.
- [NTSB CHI91DCQ07](https://openairdocs.org/ntsb/CHI91DCQ07.md): Grumman G-164A · Sharon Springs, KS · Accident · No injuries · Final report · Jul 19, 1991 · N7964 · Substantial damage
  > Aircraft takeoff performance exceeded and disregard of performance data by the pilot. A factor associated with the accident is high density altitude.
- [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 ATL91LA128](https://openairdocs.org/ntsb/ATL91LA128.md): Air Tractor AT-301 · Hawkinsville, GA · Accident · Minor injuries · Limited investigation · Final report · Jul 12, 1991 · N31691 · Substantial damage
  > A complete loss of engine power for undetermined reasons. A factor in this accident was: the rough, uneven terrain at the forced landing site.

Next page: https://openairdocs.org/ntsb.md?engine=52016&page=16

## 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 ('52016'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52016&page=15

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