# 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 3 of 34 · 1,656 cases

## Cases, newest first

- [NTSB ERA17CA149](https://openairdocs.org/ntsb/ERA17CA149.md): North American T 6G · Culpepper, VA · Accident · Serious injuries · Data collection · Final report · Apr 8, 2017 · N3167G · Substantial damage
  > The pilot's failure to maintain airplane and directional control during the landing roll and subsequent go-around in gusting wind conditions.
- [NTSB CEN17LA151](https://openairdocs.org/ntsb/CEN17LA151.md): Grumman Acft ENG Cor-Schweizer G 164A · Nome, TX · Accident · No injuries · Limited investigation · Final report · Apr 8, 2017 · N971QC · Destroyed
  > An in-flight fire for reasons that could not be determined based on available information.
- [NTSB CEN17CA120](https://openairdocs.org/ntsb/CEN17CA120.md): Aero Commander S2R · Fairmont, OK · Accident · Serious injuries · Data collection · Final report · Mar 2, 2017 · N1755S · Substantial damage
  > The pilot’s failure to maintain clearance from a power line while conducting agricultural spray operations.
- [NTSB ERA16LA319](https://openairdocs.org/ntsb/ERA16LA319.md): Grumman G164 · Chestertown, MD · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 18, 2016 · N75EP · Substantial damage
  > Loss of engine power due to a failure of the No. 3 cylinder head, which resulted in a forced landing and collision with ground equipment.
- [NTSB GAA16CA464](https://openairdocs.org/ntsb/GAA16CA464.md): North American SNJ · Perris, CA · Accident · No injuries · Data collection · Final report · Sep 3, 2016 · N7296C · Substantial damage
  > The pilot's inability to compensate for a dust devil during an aborted landing, which resulted in the left wing contacting the ground, a runway excursion, and the airplane coming to rest in a nose-down attitude.
- [NTSB GAA16CA451](https://openairdocs.org/ntsb/GAA16CA451.md): Ayres S 2R · Cordele, GA · Accident · No injuries · Data collection · Final report · Aug 25, 2016 · N3003N · Substantial damage
  > The pilot’s failure to maintain clearance from power lines during an agricultural application flight while flying toward the sun.
- [NTSB CEN16FA328](https://openairdocs.org/ntsb/CEN16FA328.md): Aero Commander S2R · Center, CO · Accident · 1 fatal · Field investigation · Final report · Aug 19, 2016 · N8870Q · Destroyed
  > The pilot's failure to maintain airplane control during a low-level maneuver, which resulted in an aerodynamic stall.
- [NTSB CEN16LA314](https://openairdocs.org/ntsb/CEN16LA314.md): Aero Commander S2R · Valley City, ND · Accident · No injuries · Limited investigation · Final report · Aug 5, 2016 · N5599X · Substantial damage
  > The pilot's inadequate preflight inspection and fuel planning, which resulted in a loss of engine power due to fuel exhaustion.
- [NTSB WPR16LA159](https://openairdocs.org/ntsb/WPR16LA159.md): Air Tractor AT 301 · Weiser, ID · Accident · No injuries · Limited investigation · Final report · Aug 2, 2016 · N23923 · Substantial damage
  > A partial loss of engine power due to an internal catastrophic failure of the master rod crankpin bearing.
- [NTSB GAA16CA399](https://openairdocs.org/ntsb/GAA16CA399.md): Air Tractor AT 301 · Bird Island, MN · Accident · No injuries · Data collection · Final report · Jul 27, 2016 · N7311X · Substantial damage
  > The pilot's diverted attention inside the cockpit and failure to maintain the airplane's altitude while maneuvering at a low altitude, resulting in an impact with terrain.
- [NTSB ERA16LA242](https://openairdocs.org/ntsb/ERA16LA242.md): Grumman Acft ENG Cor-Schweizer G-164 · Laurel, DE · Accident · No injuries · Limited investigation · Final report · Jul 2, 2016 · N6781K · Substantial damage
  > A total loss of engine power due to an encounter with a bird, which collided with the spray pump fan assembly and subsequently sent blade fragments into the engine compartment, damaging the throttle linkage.
- [NTSB WPR16LA137](https://openairdocs.org/ntsb/WPR16LA137.md): Rockwell International S 2R · Brawley, CA · Accident · No injuries · Limited investigation · Final report · Jun 29, 2016 · N4952X · Substantial damage
  > The airplane’s inability to climb and subsequent impact with terrain for reasons that could not be determined based on the available information.
- [NTSB GAA16CA338](https://openairdocs.org/ntsb/GAA16CA338.md): North American SNJ · Jackson, MI · Accident · No injuries · Data collection · Final report · Jun 25, 2016 · N7980C · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion, right main landing gear collapse, and impact with the ground.
- [NTSB CEN16LA222](https://openairdocs.org/ntsb/CEN16LA222.md): North American AT-6D · Henley, MO · Accident · Serious injuries · Limited investigation · Final report · Jun 19, 2016 · N150U · Substantial damage
  > The pilot’s decision to conduct extended inverted flight, which resulted in a total loss of engine power due to fuel flow disruption. Contributing to the accident was his decision to conduct aerobatic maneuvers at low altitude, which precluded him from…
- [NTSB ANC16LA034](https://openairdocs.org/ntsb/ANC16LA034.md): De Havilland DHC3 · Homer, AK · Accident · No injuries · Limited investigation · Final report · Jun 19, 2016 · N104BM · Substantial damage
  > An in-flight collision with a bald eagle, which resulted in substantial damage to the left wing.
- [NTSB WPR16FA120](https://openairdocs.org/ntsb/WPR16FA120.md): Rockwell S2R · De Smet, ID · Accident · 1 fatal · Field investigation · Final report · Jun 6, 2016 · N4191X · Substantial damage
  > The pilot's inadequate visual lookout, which resulted in his failure to maintain clearance from guy wires during an aerial application flight. Contributing to the accident was the pilot's reduced ability to see the guy wires due to sun glare.
- [NTSB WPR16FA112](https://openairdocs.org/ntsb/WPR16FA112.md): North American AT 6 · Mesa, AZ · Accident · 2 fatal · Field investigation · Final report · May 18, 2016 · N3198G · Destroyed
  > The pilot's inability to return to the departure airport due to an unspecified in-flight emergency for reasons that could not be determined during a postaccident examination of the airplane.
- [NTSB CEN16TA194](https://openairdocs.org/ntsb/CEN16TA194.md): North American AT6 · Mason, MI · Accident · No injuries · Final report · May 18, 2016 · N757LF · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll in gusting crosswind conditions, which resulted in a runway excursion and impact with a ditch.
- [NTSB CEN16LA180](https://openairdocs.org/ntsb/CEN16LA180.md): Grumman Acft ENG Cor-Schweizer G 164B · Lyons Point, LA · Accident · Minor injuries · Limited investigation · Final report · May 11, 2016 · N8362K · Substantial damage
  > A total loss of engine power due to debris contamination of the fuel system. Contributing to the accident was the pilot's inadequate preflight inspection.
- [NTSB GAA16CA176](https://openairdocs.org/ntsb/GAA16CA176.md): North American AT6 · Yukon, OK · Accident · No injuries · Data collection · Final report · Apr 2, 2016 · N107FG · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll in gusty wind conditions, which resulted in runway excursion and impact with terrain.
- [NTSB ERA16LA130](https://openairdocs.org/ntsb/ERA16LA130.md): Grumman Acft ENG Cor-Schweizer G-164 · Myakka, FL · Accident · No injuries · Limited investigation · Final report · Mar 14, 2016 · N6654K · Substantial damage
  > A total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical anomalies that would have precluded normal operation.
- [NTSB WPR16LA082](https://openairdocs.org/ntsb/WPR16LA082.md): Grumman G164 · Juliaetta, ID · Accident · No injuries · Limited investigation · Final report · Mar 12, 2016 · N6894Q · Substantial damage
  > A partial loss of engine power due to a crack in the No. 2 cylinder.
- [NTSB GAA15CA266](https://openairdocs.org/ntsb/GAA15CA266.md): Schweizer G 164B · Paxton, NE · Accident · Minor injuries · Data collection · Final report · Sep 16, 2015 · N3628Z · Substantial damage
  > The pilot's failure to maintain adequate distance from a power line during low altitude flight operations, which resulted in an impact with the power line, and subsequent impact with the ground.
- [NTSB ANC15FA071](https://openairdocs.org/ntsb/ANC15FA071.md): Dehavilland DHC 3T · Iliamna, AK · Accident · 3 fatal · Field investigation · Final report · Sep 15, 2015 · N928RK · Substantial damage
  > The pilot's decision to depart in dark night, visual meteorological conditions over water, which resulted in his subsequent spatial disorientation and loss of airplane control. Contributing to the accident was the pilot's failure to determine the airplane's…
- [NTSB CEN15LA345](https://openairdocs.org/ntsb/CEN15LA345.md): Air Tractor AT 401 · Nekoosa, WI · Accident · No injuries · Limited investigation · Final report · Aug 5, 2015 · N1539U · Substantial damage
  > The pilot’s inadequate preflight planning, which resulted in his attempt to take off for the agricultural application flight with the airplane over its maximum gross weight in high-density altitude conditions and led to the airplane’s degraded climb…
- [NTSB ANC15MA041](https://openairdocs.org/ntsb/ANC15MA041.md): Dehavilland DHC-3 · Ketchikan, AK · Accident · 9 fatal · Class 1 · Major · Final report · Jun 25, 2015 · N270PA · Substantial damage
  > (1) the pilot's decision to continue visual flight into an area of instrument meteorological conditions, which resulted in his geographic disorientation and controlled flight into terrain; and (2) Promech's company culture, which tacitly endorsed flying in…
- [NTSB WPR15LA194](https://openairdocs.org/ntsb/WPR15LA194.md): Grumman Acft ENG Cor-Schweizer G 164A · Five Points, CA · Accident · Minor injuries · Limited investigation · Final report · Jun 21, 2015 · N8598H · Substantial damage
  > Maintenance personnel’s improper reassembly of the engine during overhaul, which led to the failure of the supercharger-blower due to a lack of lubrication and the subsequent total loss of engine power during takeoff.
- [NTSB WPR15LA186](https://openairdocs.org/ntsb/WPR15LA186.md): Rockwell International S 2R · Washtucna, WA · Accident · Serious injuries · Limited investigation · Final report · Jun 16, 2015 · N8420V · Substantial damage
  > The pilot's failure to maintain directional control while landing with a quartering tailwind.
- [NTSB GAA15CA117](https://openairdocs.org/ntsb/GAA15CA117.md): Air Tractor AT 401 · Wall, SD · Accident · No injuries · Data collection · Final report · Jun 9, 2015 · N4549E · Substantial damage
  > The pilot's failure to adjust the airplane's useful load to compensate for the high temperature, which resulted in an insufficient climb rate to clear surrounding terrain, and a runway excursion.
- [NTSB GAA15CA113](https://openairdocs.org/ntsb/GAA15CA113.md): Grumman Acft ENG Cor-Schweizer G 164A · Bakersfield, CA · Accident · No injuries · Data collection · Final report · Jun 9, 2015 · N8372 · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion, and a collision with terrain.
- [NTSB ANC15LA037](https://openairdocs.org/ntsb/ANC15LA037.md): Dehavilland DHC-3T · Skwentna, AK · Accident · No injuries · Limited investigation · Final report · Jun 4, 2015 · N3125N · Substantial damage
  > The flutter failure of the right elevator servo tab due to the improper fabrication of the servo tab and maintenance personnel’s subsequent failure to detect anomalies with the servo tab.
- [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 WPR15LA160](https://openairdocs.org/ntsb/WPR15LA160.md): Grumman Acft ENG Cor-Schweizer G 164A · Maxwell, CA · Accident · No injuries · Limited investigation · Final report · May 13, 2015 · N8875H · Substantial damage
  > The pilot’s improper preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB CEN15LA175](https://openairdocs.org/ntsb/CEN15LA175.md): Grumman Acft ENG Cor-Schweizer G 164A · New Roads, LA · Accident · Minor injuries · Limited investigation · Final report · Mar 17, 2015 · N9755 · Substantial damage
  > The loss of engine power due to three stuck exhaust valves.
- [NTSB WPR15LA106](https://openairdocs.org/ntsb/WPR15LA106.md): Grumman Acft ENG Cor-Schweizer G 164A · Alfalfa, OR · Accident · No injuries · Limited investigation · Final report · Feb 18, 2015 · N4863 · Substantial damage
  > A total loss of engine power after takeoff for reasons that could not be determined, because examination of the engine did not reveal any mechanical anomalies that would have precluded normal operation.
- [NTSB WPR15LA023](https://openairdocs.org/ntsb/WPR15LA023.md): Air Tractor AT 301 · Basin City, WA · Accident · No injuries · Limited investigation · Final report · Oct 27, 2014 · N8878S · Substantial damage
  > Maintenance personnel’s and the airplane owner’s failure to inspect the engine for cracks in the cylinders as required by an airworthiness directive, which resulted in the loss of engine power during low-altitude maneuvering flight.
- [NTSB ERA15LA030](https://openairdocs.org/ntsb/ERA15LA030.md): North American T 6G · Naples, FL · Accident · No injuries · Limited investigation · Final report · Oct 23, 2014 · N22NA · Substantial damage
  > The total loss of engine power during the initial climb due to fuel starvation for reasons that could not be determined because postaccident examinations of the airframe and engine fuel system components revealed no evidence of a mechanical malfunction or…
- [NTSB CEN14LA450](https://openairdocs.org/ntsb/CEN14LA450.md): Air Tractor AT-401 · Natchez, LA · Accident · No injuries · Limited investigation · Final report · Aug 24, 2014 · N91968 · Destroyed
  > The loss of power due to the failure of the No. 2 exhaust valve and rocker boss during takeoff.
- [NTSB CEN14LA439](https://openairdocs.org/ntsb/CEN14LA439.md): Air Tractor AT-401 · Wray, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 19, 2014 · N4542W · Substantial damage
  > A loss of the No. 1 cylinder’s compression due to a stuck exhaust valve caused by a lack of sufficient valve clearance, which resulted in a loss of engine power and a forced landing. Contributing to the loss of engine power were the worn intake and exhaust…
- [NTSB CEN14CA442](https://openairdocs.org/ntsb/CEN14CA442.md): Rockwell International S 2R · Kerkhoven, MN · Accident · No injuries · Data collection · Final report · Aug 19, 2014 · N9646A · Substantial damage
  > The pilot failure to see and avoid the guide wire during the aerial application flight.
- [NTSB ERA14CA394](https://openairdocs.org/ntsb/ERA14CA394.md): North American SNJ-6 · Readington, NJ · Accident · No injuries · Data collection · Final report · Aug 16, 2014 · N211A · Substantial damage
  > The pilot's failure to maintain aircraft control during landing which resulted in an aircraft nose-over.
- [NTSB CEN14CA427](https://openairdocs.org/ntsb/CEN14CA427.md): Air Tractor AT 401B · Cimarron, KS · Accident · Serious injuries · Data collection · Final report · Aug 13, 2014 · N9071Z · Substantial damage
  > The pilot's failure to maintain clearance from the antenna guy wire during an aerial application pass.
- [NTSB WPR14LA322](https://openairdocs.org/ntsb/WPR14LA322.md): Schweizer G 164B · Tulelake, CA · Accident · 1 fatal · Limited investigation · Final report · Aug 1, 2014 · N3627R · Destroyed
  > The pilot's failure to maintain clearance from power lines while maneuvering during low-altitude operations.
- [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 CEN14LA287](https://openairdocs.org/ntsb/CEN14LA287.md): Air Tractor AT 301 · Pearsall, TX · Accident · No injuries · Limited investigation · Final report · Jun 12, 2014 · N8593S · Substantial damage
  > The failure of the No. 1 cylinder rod at the link pin. Contributing to the accident was oil starvation to the rod bearing due to the improper flushing of the oil cooler, which allowed metal and other debris in the oil to clog the drain and the led to the…
- [NTSB CEN14LA284](https://openairdocs.org/ntsb/CEN14LA284.md): Air Tractor AT-301 · Winner, SD · Accident · No injuries · Limited investigation · Final report · Jun 11, 2014 · N8564S · Substantial damage
  > The pilot's improper decision to attempt a takeoff with a tailwind and his failure to achieve the proper airspeed for liftoff, which resulted in the airplane exceeding its critical angle of attack and entering an aerodynamic stall shortly after liftoff.
- [NTSB ANC14LA035](https://openairdocs.org/ntsb/ANC14LA035.md): Dehavilland DHC-3T · Homer, AK · Accident · No injuries · Limited investigation · Final report · May 30, 2014 · N3125N · Substantial damage
  > The flutter failure of the right elevator servo tab due to the improper fabrication of the servo tab and maintenance personnel’s subsequent failure to detect anomalies with the servo tab.
- [NTSB WPR14LA198](https://openairdocs.org/ntsb/WPR14LA198.md): Rockwell International S 2R · Medicine Lake, MT · Accident · No injuries · Limited investigation · Final report · May 21, 2014 · N702CB · Substantial damage
  > The pilot’s failure to maintain airplane control and sufficient altitude to clear terrain during a low-altitude maneuver.
- [NTSB CEN14CA246](https://openairdocs.org/ntsb/CEN14CA246.md): North American SNJ 6 · Santa Fe, NM · Accident · No injuries · Data collection · Final report · May 18, 2014 · N5485V · Substantial damage
  > The pilot's loss of directional control during landing and subsequent go around attempt.
- [NTSB WPR14LA201](https://openairdocs.org/ntsb/WPR14LA201.md): Schweizer G 164B · Biggs, CA · Accident · No injuries · Limited investigation · Final report · May 13, 2014 · N3633C · Substantial damage
  > The assembler’s improper fabrication of a fuel line (hose) and the subsequent failure to verify that it was not occluded, which resulted in fuel starvation and a total loss of engine power during takeoff.

Next page: https://openairdocs.org/ntsb.md?engine=52016&page=4

## 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=3

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