# 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 2 of 34 · 1,656 cases

## Cases, newest first

- [NTSB ERA22LA032](https://openairdocs.org/ntsb/ERA22LA032.md): North American AT-6D · Pickens, SC · Accident · No injuries · Class 4 · Limited · Final report · Oct 24, 2021 · N3771M · Substantial damage
  > The pilot’s failure to maintain directional control during landing, resulting in a runway excursion and collision with rocky terrain.
- [NTSB CEN21LA393](https://openairdocs.org/ntsb/CEN21LA393.md): Air Tractor AT-401B · Storm Lake, IA · Accident · No injuries · Class 4 · Limited · Final report · Sep 1, 2021 · N5081W · Substantial damage
  > The pilot’s failure to maintain adequate airspeed during a landing approach with a tailwind that resulted in a landing overrun and impact with terrain.
- [NTSB ERA21FA334](https://openairdocs.org/ntsb/ERA21FA334.md): North American SNJ-2 · Wilkes-Barre, PA · Accident · 1 fatal · Class 3 · Field · Final report · Aug 20, 2021 · N52900 · Destroyed
  > A partial loss of engine power for undetermined reasons. Also causal was the pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for a forced landing following the loss of engine power, which resulted in an aerodynamic stall and…
- [NTSB CEN21FA355](https://openairdocs.org/ntsb/CEN21FA355.md): North American T-6G · Starkville, MS · Accident · 2 fatal · Class 3 · Field · Final report · Aug 4, 2021 · N7197C · Destroyed
  > The pilot’s failure to maintain clearance from trees while maneuvering at low altitude.
- [NTSB WPR21LA299](https://openairdocs.org/ntsb/WPR21LA299.md): Schweizer G-164B · Tracy, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 30, 2021 · N3629F · Substantial damage
  > A loss of thrust during a low-level agricultural application flight, which resulted in a descent and impact with terrain. The reason for the loss of thrust could not be determined based on available information.
- [NTSB CEN21LA352](https://openairdocs.org/ntsb/CEN21LA352.md): North American AT-6F · Adrian, MI · Accident · No injuries · Class 4 · Limited · Final report · Jul 28, 2021 · N6601C · Substantial damage
  > The loss of control during landing due to the out of rig condition of the tailwheel which resulted in a ground loop and impact with the runway.
- [NTSB CEN21LA319](https://openairdocs.org/ntsb/CEN21LA319.md): Air Tractor AT-401 · Carroll, IA · Accident · No injuries · Class 3 · Limited · Final report · Jul 13, 2021 · N7315P · Substantial damage
  > The wear-related failure of the airframe fuel boost pump, which resulted in fuel starvation and a loss of engine power.
- [NTSB CEN21LA237](https://openairdocs.org/ntsb/CEN21LA237.md): Grumman G164 · Celina, OH · Accident · Serious injuries · Class 3 · Limited · Final report · May 27, 2021 · N8376K · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB WPR21LA200](https://openairdocs.org/ntsb/WPR21LA200.md): Grumman Acft ENG Cor-Schweizer G-164C · Glenn, CA · Accident · Serious injuries · Class 3 · Limited · Final report · May 12, 2021 · N6596K · Substantial damage
  > The pilot’s fuel mismanagement, which resulted in fuel exhaustion, a total loss of engine power, and an off-airport hard landing.
- [NTSB CEN21LA133](https://openairdocs.org/ntsb/CEN21LA133.md): Aero Commander S2R · Alamo, TX · Accident · No injuries · Class 3 · Limited · Final report · Feb 9, 2021 · N5679X · Substantial damage
  > The partial loss of engine power due to water-contaminated fuel.
- [NTSB CEN20CA347](https://openairdocs.org/ntsb/CEN20CA347.md): Grumman G164 · Scottsbluff, NE · Accident · Minor injuries · Class 4 · Data collection · Final report · Aug 18, 2020 · N48416 · Substantial damage
  > The pilot’s loss of visual reference during agricultural low-level flight, resulting in collision with power lines.
- [NTSB CEN20LA294](https://openairdocs.org/ntsb/CEN20LA294.md): Rockwell S2R · Harlan, IA · Accident · No injuries · Class 3 · Limited · Final report · Jul 20, 2020 · N1662S · Substantial damage
  > The fatigue fracture of the upper rudder hinge that resulted in a partial separation of the rudder from the airplane during a spray pass.
- [NTSB CEN20LA276](https://openairdocs.org/ntsb/CEN20LA276.md): Rockwell S2R R1340 · Keokuk, IA · Accident · No injuries · Class 3 · Limited · Final report · Jul 12, 2020 · N3104S · Substantial damage
  > The improper installation of a fuel vent line during maintenance, which resulted in fuel starvation and a total loss of engine power.
- [NTSB WPR20LA175](https://openairdocs.org/ntsb/WPR20LA175.md): Grumman G164 · Lincoln, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 4, 2020 · N8486K · Substantial damage
  > The pilot’s loss of directional control on takeoff for undetermined reasons.
- [NTSB WPR20CA159](https://openairdocs.org/ntsb/WPR20CA159.md): Grumman G164 · Maxwell, CA · Accident · No injuries · Class 4 · Data collection · Final report · May 29, 2020 · N9716 · Substantial damage
  > The pilot's delayed decision to abort the takeoff when the airplane was not attaining sufficient airspeed for takeoff and subsequently departed the end of the runway and collided with terrain. Contributing to the accident was the pilot's inadequate preflight…
- [NTSB CEN20CA176](https://openairdocs.org/ntsb/CEN20CA176.md): North American SNJ · San Antonio, TX · Accident · No injuries · Class 4 · Data collection · Final report · May 8, 2020 · N3238G · Substantial damage
  > The pilot's loss of directional control while landing a tailwheel airplane in gusty wind conditions.
- [NTSB WPR20LA025](https://openairdocs.org/ntsb/WPR20LA025.md): North American SNJ-4 · Heber City, UT · Accident · No injuries · Class 3 · Limited · Final report · Nov 16, 2019 · N694US · Substantial damage
  > The pilot’s loss of directional control during landing as a result of the separated tailwheel-to-rudder link rod
- [NTSB GAA19CA493](https://openairdocs.org/ntsb/GAA19CA493.md): North American AT 6D · Chino, CA · Accident · No injuries · Data collection · Final report · Aug 10, 2019 · N6432D · Substantial damage
  > The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall.
- [NTSB ERA19LA238](https://openairdocs.org/ntsb/ERA19LA238.md): Aero Commander S2R · Cuthbert, GA · Accident · No injuries · Class 3 · Limited · Final report · Jul 25, 2019 · N5680X · Substantial damage
  > The failure of the No. 1 bearing due to fatigue which resulted in a partial loss of engine power. The reason for the bearing failure could not be determined based on the available information.
- [NTSB CEN19CA237](https://openairdocs.org/ntsb/CEN19CA237.md): North American AT 6F · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Jul 24, 2019 · N7976A · Substantial damage
  > The pilot's loss of directional control during landing with a quartering tailwind, which resulted in a runway excursion and subsequent substantial damage.
- [NTSB CEN19LA156](https://openairdocs.org/ntsb/CEN19LA156.md): Rockwell S 2R · Oakes, ND · Accident · No injuries · Class 3 · Limited · Final report · May 25, 2019 · N4907X · Substantial damage
  > The failure of the helical cam gear of the engine assembly due to fatigue cracks in the gear teeth, which resulted in a total loss of engine power.
- [NTSB GAA19CA283](https://openairdocs.org/ntsb/GAA19CA283.md): Rockwell S2R · Grangeville, ID · Accident · No injuries · Data collection · Final report · May 24, 2019 · N5569X · Substantial damage
  > The pilot's exceedance of the airplane's critical angle of attack while turning at low altitude, which resulted in an aerodynamic stall.
- [NTSB GAA19CA277](https://openairdocs.org/ntsb/GAA19CA277.md): Grumman G164 · Pearsall, TX · Accident · Serious injuries · Data collection · Final report · May 21, 2019 · N7500K · Destroyed
  > The pilot's failure to maintain clearance from power lines during low-altitude maneuvering.
- [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 WPR19FA145](https://openairdocs.org/ntsb/WPR19FA145.md): Grumman G164 · Pleasant Grove, CA · Accident · 2 fatal · Class 3 · Field · Final report · May 15, 2019 · N6787K · 2 aircraft · Substantial damage
  > The failure of both pilots to see and avoid the other airplane, which resulted in a midair collision.
- [NTSB GAA19CA270](https://openairdocs.org/ntsb/GAA19CA270.md): Grumman G164 · Lane City, TX · Accident · No injuries · Data collection · Final report · May 15, 2019 · N4865 · Destroyed
  > The pilot's failure to maintain clearance from power lines during low-altitude maneuvering.
- [NTSB CEN19MA141](https://openairdocs.org/ntsb/CEN19MA141.md): De Havilland DHC-2 · Ketchikan, AK · Accident · 6 fatal · Class 1 · Major · Final report · May 13, 2019 · N952DB · 2 aircraft · Destroyed
  > The inherent limitations of the see-and-avoid concept, which prevented the two pilots from seeing the other airplane before the collision, and the absence of visual and aural alerts from both airplanes’ traffic display systems, while operating in a geographic…
- [NTSB WPR19LA137](https://openairdocs.org/ntsb/WPR19LA137.md): Grumman G164 · Sutter, CA · Accident · No injuries · Class 3 · Limited · Final report · May 5, 2019 · N3630D · Substantial damage
  > A loss of engine power due to the in-flight separation of the fuel control unit interconnect rod for reasons that could not be determined due to lack of available evidence.
- [NTSB GAA19CA207](https://openairdocs.org/ntsb/GAA19CA207.md): North American SNJ · Chino, CA · Accident · No injuries · Data collection · Final report · Apr 13, 2019 · N3375G · 2 aircraft · Substantial damage
  > The other pilot's failure to maintain clearance from a stopped airplane while taxiing.
- [NTSB GAA19CA185](https://openairdocs.org/ntsb/GAA19CA185.md): Rockwell S 2R · Hermiston, OR · Accident · Minor injuries · Data collection · Final report · Mar 28, 2019 · N4250X · Substantial damage
  > The pilot's distraction due to a spray handle opening and his improper pitch trim setting during final approach, which resulted in an excessive pitchdown when he took his hand off the controls to close the handle.
- [NTSB WPR19LA014](https://openairdocs.org/ntsb/WPR19LA014.md): North American SNJ · Agoura Hills, CA · Accident · No injuries · Class 3 · Limited · Final report · Oct 23, 2018 · N7969C · Destroyed
  > The failure of the No. 5 piston rod end due to fatigue, which resulted in a total loss of engine power.
- [NTSB CEN18LA332](https://openairdocs.org/ntsb/CEN18LA332.md): Aero Commander S2R · Westbrook, MN · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 2018 · N5521X · Substantial damage
  > A runway excursion during takeoff for reasons that could not be determined based on the available evidence.
- [NTSB CEN18LA288](https://openairdocs.org/ntsb/CEN18LA288.md): Air Tractor AT 301 · Milford, IA · Accident · No injuries · Limited investigation · Final report · Jul 22, 2018 · N3169H · Substantial damage
  > The pilot's loss of airplane control during takeoff for reasons that could not be determined because no anomalies consistent with a flight control system malfunction were observed.
- [NTSB CEN18LA278](https://openairdocs.org/ntsb/CEN18LA278.md): Aero Commander S2R · Vinton, IA · Accident · No injuries · Class 3 · Limited · Final report · Jul 17, 2018 · N5553X · Substantial damage
  > Loss of throttle control input due to a failure in the throttle control system. Contributing to the accident was the inadequate inspection and reinstallation of worn parts by maintenance personnel.
- [NTSB WPR18LA189](https://openairdocs.org/ntsb/WPR18LA189.md): Grumman G164B · Colusa, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 9, 2018 · N6696K · Substantial damage
  > Total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB GAA18CA414](https://openairdocs.org/ntsb/GAA18CA414.md): North American AT · Moneta, VA · Accident · No injuries · Data collection · Final report · Jul 5, 2018 · N29963 · Substantial damage
  > The pilot's failure to maintain a proper descent rate, which resulted in a bounced landing and his subsequent failure to maintain directional.
- [NTSB GAA18CA401](https://openairdocs.org/ntsb/GAA18CA401.md): Grumman G164 · Rochelle, IL · Accident · No injuries · Data collection · Final report · Jul 5, 2018 · N6795Q · Substantial damage
  > The pilot’s failure to move the power lever to the proper position before takeoff, which resulted in insufficient airspeed and a subsequent aerodynamic stall.
- [NTSB GAA18CA410](https://openairdocs.org/ntsb/GAA18CA410.md): Ayres S2R · Pantego, NC · Accident · No injuries · Data collection · Final report · Jul 1, 2018 · N3098L · Substantial damage
  > The pilot's failure to maintain the proper approach path during landing, which resulted in landing short of the runway.
- [NTSB GAA18CA371](https://openairdocs.org/ntsb/GAA18CA371.md): Air Tractor AT 301 · Hutchinson, MN · Accident · No injuries · Data collection · Final report · Jun 20, 2018 · N3169D · Substantial damage
  > The pilot’s improper preflight fuel planning, which resulted in fuel exhaustion and the subsequent total loss of engine power.
- [NTSB WPR18FA155](https://openairdocs.org/ntsb/WPR18FA155.md): North American SNJ 2 · Melville, NY · Accident · 1 fatal · Field investigation · Final report · May 30, 2018 · N62382 · Destroyed
  > The pilot's exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall, spin, and subsequent impact with terrain.
- [NTSB WPR18LA128](https://openairdocs.org/ntsb/WPR18LA128.md): Grumman Acft ENG Cor-Schweizer G 164C · Maxwell, CA · Accident · No injuries · Class 3 · Limited · Final report · Apr 29, 2018 · N6674K · Substantial damage
  > A total loss of engine power due to an uncommanded closing of the fuel shutoff valve, which terminated fuel to the engine. The reason for the fuel shutoff valve’s closure could not be determined based on the available information.
- [NTSB CEN18FA147](https://openairdocs.org/ntsb/CEN18FA147.md): North American SNJ 5 · Kingsville, TX · Accident · 2 fatal · Field investigation · Final report · Apr 25, 2018 · N12377 · Destroyed
  > The pilot's failure to maintain airspeed during a steep turn after takeoff, resulting in an exceedance of the airplane's critical angle of attack and a subsequent accelerated stall at an altitude too low for recovery.
- [NTSB WPR18LA015](https://openairdocs.org/ntsb/WPR18LA015.md): Schweizer G 164B · Tracy, CA · Accident · No injuries · Limited investigation · Final report · Oct 24, 2017 · N8494K · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during the landing roll.
- [NTSB WPR17LA174](https://openairdocs.org/ntsb/WPR17LA174.md): Rockwell International S 2R · Brawley, CA · Accident · No injuries · Limited investigation · Final report · Aug 1, 2017 · N4913X · Substantial damage
  > The partial loss of engine power due to the overstress separation of three supercharger drive gear teeth.
- [NTSB GAA17CA459](https://openairdocs.org/ntsb/GAA17CA459.md): Rockwell International S 2R · McRae, GA · Accident · No injuries · Data collection · Final report · Jul 27, 2017 · N4886X · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll in tailwind conditions.
- [NTSB GAA17CA321](https://openairdocs.org/ntsb/GAA17CA321.md): Ag-Cat G 164 · Tulelake, CA · Accident · No injuries · Data collection · Final report · Jun 5, 2017 · N80083 · Substantial damage
  > The pilot’s improper decision to perform a low altitude fly-by over ground equipment, which resulted in the airplane striking the equipment.
- [NTSB GAA17CA305](https://openairdocs.org/ntsb/GAA17CA305.md): Grumman Acft ENG Cor-Schweizer G-164 · Maxwell, CA · Accident · Serious injuries · Data collection · Final report · May 26, 2017 · N6674K · Substantial damage
  > The pilot's failure to visually check the fuel quantity during the preflight inspection and ensure that sufficient fuel was onboard for the flight, which resulted in a total loss of engine power due to fuel exhaustion.
- [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 GAA17CA242](https://openairdocs.org/ntsb/GAA17CA242.md): North American SNJ · Van Nuys, CA · Accident · No injuries · Data collection · Final report · Apr 20, 2017 · N7969C · Substantial damage
  > The pilot’s failure to maintain directional control of the airplane during the landing roll with a quartering tailwind.
- [NTSB CEN17LA163](https://openairdocs.org/ntsb/CEN17LA163.md): Grumman Schweizer G-164 · Palmer, KS · Accident · No injuries · Limited investigation · Final report · Apr 17, 2017 · N9533 · Substantial damage
  > A crack in the cylinder of the radial engine, which resulted in a loss of engine power and a forced landing on unsuitable terrain.

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

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