# 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 4 of 34 · 1,656 cases

## Cases, newest first

- [NTSB CEN14LA229](https://openairdocs.org/ntsb/CEN14LA229.md): Air Tractor AT 301 · Hessmer, LA · Accident · No injuries · Limited investigation · Final report · May 5, 2014 · N7309Z · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because a full examination of the engine could not be performed.
- [NTSB WPR14CA002](https://openairdocs.org/ntsb/WPR14CA002.md): Air Tractor AT 401 · Waco, TX · Accident · No injuries · Data collection · Final report · Oct 1, 2013 · N1013R · Substantial damage
  > The pilot’s failure to maintain directional control during the takeoff in gusting wind conditions.
- [NTSB CEN13LA533](https://openairdocs.org/ntsb/CEN13LA533.md): Grumman G-164A · Atlantic, IA · Accident · Minor injuries · Limited investigation · Final report · Sep 6, 2013 · N7843 · Destroyed
  > The pilot’s delay in releasing product to reduce the airplane’s weight and improve its climb performance, which was reduced because of the high density altitude.
- [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 CEN13LA519](https://openairdocs.org/ntsb/CEN13LA519.md): Gulfstream-Schweizer Gulfstream AM G 164B · Eagle Lake, TX · Accident · No injuries · Limited investigation · Final report · Aug 13, 2013 · N8222K · Substantial damage
  > The failure of one of the engine cylinders, which resulted in the total loss of engine power and subsequent forced landing.
- [NTSB CEN13LA443](https://openairdocs.org/ntsb/CEN13LA443.md): Grumman G-164A · Monte Vista, CO · Accident · No injuries · Limited investigation · Final report · Jul 29, 2013 · N5324 · Substantial damage
  > The partial loss of engine power due to a fatigue failure of the engine cylinder exhaust rocker housing as a result of an excessively torqued rocker assembly.
- [NTSB CEN13LA422](https://openairdocs.org/ntsb/CEN13LA422.md): Grumman Aircraft Cor-Schweizer G-164A · Elmira, MI · Accident · Serious injuries · Limited investigation · Final report · Jul 17, 2013 · N8719H · Substantial damage
  > The pilot's failure to maintain clearance from a line of trees while applying agricultural product to a field.
- [NTSB ERA13LA318](https://openairdocs.org/ntsb/ERA13LA318.md): Grumman Acft ENG Cor-Schweizer G-164B · Beaufort, NC · Accident · No injuries · Limited investigation · Final report · Jul 8, 2013 · N6651K · Substantial damage
  > A failure of the right brake for reasons that could not be determined because a postaccident examination of the brake could not be performed.
- [NTSB CEN13LA394](https://openairdocs.org/ntsb/CEN13LA394.md): Gulfstream-Schweizer A/C Gulfstream AM G-164B · Colfax, LA · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 2013 · N8187K · Substantial damage
  > The pilot’s failure to maintain clearance from a tree.
- [NTSB ERA13LA312](https://openairdocs.org/ntsb/ERA13LA312.md): Schweizer G-164B · Jackson, TN · Accident · No injuries · Limited investigation · Final report · Jun 29, 2013 · N3633S · Substantial damage
  > A failure of the right main landing gear wheel rim during the landing roll, resulting in a loss of control and a subsequent collapse of the right main landing gear.
- [NTSB CEN13LA375](https://openairdocs.org/ntsb/CEN13LA375.md): Air Tractor AT-301 · Colome, SD · Accident · No injuries · Limited investigation · Final report · Jun 26, 2013 · N3168X · Substantial damage
  > The loss of engine power for reasons that could not be determined because a postaccident engine run revealed no anomalies that would have precluded normal operation.
- [NTSB WPR13LA248](https://openairdocs.org/ntsb/WPR13LA248.md): Air Tractor AT-301 · Wheatland, WY · Accident · No injuries · Limited investigation · Final report · May 24, 2013 · N23647 · Substantial damage
  > A loss of engine power due to fuel exhaustion and the pilot's inadequate fuel planning.
- [NTSB WPR13LA223](https://openairdocs.org/ntsb/WPR13LA223.md): Schweizer G-164B · Biggs, CA · Accident · 1 fatal · Limited investigation · Final report · May 9, 2013 · N8214S · Minor damage
  > The pilot’s failure to adequately monitor the runway environment during taxi, which resulted in an on-ground collision.
- [NTSB ERA13CA163](https://openairdocs.org/ntsb/ERA13CA163.md): Air Tractor AT-301 · Greenbrier, AL · Accident · No injuries · Data collection · Final report · Feb 24, 2013 · N7310N · Substantial damage
  > The pilot’s failure to maintain adequate clearance from trees.
- [NTSB CEN13LA152](https://openairdocs.org/ntsb/CEN13LA152.md): Air Tractor AT-401 · Victoria, TX · Accident · No injuries · Limited investigation · Final report · Jan 31, 2013 · N9190B · Substantial damage
  > The mechanical failure of the engine power section, which resulted in a loss of engine power.
- [NTSB ERA13LA029](https://openairdocs.org/ntsb/ERA13LA029.md): Grumman Acft ENG Cor-Schweizer G-164B · Edison, GA · Accident · Minor injuries · Limited investigation · Final report · Oct 19, 2012 · N6670K · Substantial damage
  > The total loss of engine power due to the fatigue failure of the k-pin associated with the No. 1 cylinder.
- [NTSB WPR12CA403](https://openairdocs.org/ntsb/WPR12CA403.md): Ayres S2R-R1340 · Brawley, CA · Accident · Minor injuries · Data collection · Final report · Sep 7, 2012 · N4020A · Substantial damage
  > The pilot's decision to attempt to takeoff in high temperatures with a tailwind. Contributing to the accident was the sun glare.
- [NTSB CEN12LA589](https://openairdocs.org/ntsb/CEN12LA589.md): Air Tractor AT-301 · Ralls, TX · Accident · Minor injuries · Limited investigation · Final report · Aug 29, 2012 · N23960 · Substantial damage
  > The total loss of engine power due to a fatigue failure of the rocker arm journal casting of the rocker arm cap.
- [NTSB CEN12CA544](https://openairdocs.org/ntsb/CEN12CA544.md): Schweizer, N36289 G-164B · Kaplan, LA · Accident · Serious injuries · Data collection · Final report · Aug 15, 2012 · N36289 · Substantial damage
  > The pilot's failure to maintain clearance from power lines during the aerial application flight.
- [NTSB WPR12LA356](https://openairdocs.org/ntsb/WPR12LA356.md): Rockwell S2R · Royal City, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 14, 2012 · N8468V · Substantial damage
  > The loss of engine power due to the separation of the No. 2 cylinder exhaust rocker boss housing, which prevented the exhaust valve from opening.
- [NTSB CEN12LA513](https://openairdocs.org/ntsb/CEN12LA513.md): Grumman Acft ENG Cor G-164A · La Salle, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 1, 2012 · N9822 · Substantial damage
  > The loss of engine power due to the detached distributor rotor.
- [NTSB CEN12LA491](https://openairdocs.org/ntsb/CEN12LA491.md): Grumman G-164A · Fergus Falls, MN · Accident · No injuries · Limited investigation · Final report · Jul 20, 2012 · N4638 · Substantial damage
  > A total loss of engine power due to a cracked No. 2 cylinder head.
- [NTSB CEN12LA440](https://openairdocs.org/ntsb/CEN12LA440.md): Grumman Acft ENG Cor-Schweizer G-164A · Darksville, MO · Accident · 1 fatal · Limited investigation · Final report · Jul 13, 2012 · N6846Q · Substantial damage
  > The pilot did not maintain clearance from a tree line at the completion of an agricultural spray run.
- [NTSB CEN12LA324](https://openairdocs.org/ntsb/CEN12LA324.md): North American T-6G · Perry, MI · Accident · 1 fatal · Limited investigation · Final report · May 28, 2012 · N3753G · Substantial damage
  > The pilot’s failure to maintain control while maneuvering at low altitude after takeoff, resulting in a collision with a barn.
- [NTSB WPR12LA233](https://openairdocs.org/ntsb/WPR12LA233.md): Grumman Acft ENG Cor-Schweizer G-164A · Wilton, CA · Accident · No injuries · Limited investigation · Final report · May 27, 2012 · N8380 · Substantial damage
  > The failure of the hopper gate mechanism and subsequent sulfur fire during a low-level maneuver.
- [NTSB WPR12CA229](https://openairdocs.org/ntsb/WPR12CA229.md): Rockwell International S-2R · Royal City, WA · Accident · No injuries · Data collection · Final report · May 24, 2012 · N8468V · Substantial damage
  > The pilot’s failure to maintain adequate clearance from an object during an aerial application, which resulted in damage to the landing gear and led to the airplane ground looping during the subsequent landing.
- [NTSB CEN12LA357](https://openairdocs.org/ntsb/CEN12LA357.md): Rockwell International S-2R · Howard, SD · Accident · No injuries · Limited investigation · Final report · May 23, 2012 · N8421V · Substantial damage
  > A fractured fabricated aluminum oil line, which resulted in oil exhaustion followed by a forced landing.
- [NTSB CEN12CA313](https://openairdocs.org/ntsb/CEN12CA313.md): Ayres S2R-R1340 · Clear Lake, SD · Accident · Serious injuries · Data collection · Final report · May 23, 2012 · N30951 · Substantial damage
  > The pilot's failure to perform a detailed observation of the power lines before beginning the aerial application work, which resulted in an inadvertent collision with the two lower wires.
- [NTSB CEN12CA274](https://openairdocs.org/ntsb/CEN12CA274.md): Air Tractor AT-301 · Cedar Bluffs, NE · Accident · No injuries · Data collection · Final report · May 3, 2012 · N3166W · Substantial damage
  > The pilot's improper fuel management, which resulted in a loss of engine power due to fuel exhaustion.
- [NTSB CEN12CA264](https://openairdocs.org/ntsb/CEN12CA264.md): Air Tractor AT-301A · Cheyenne Wells, CO · Accident · No injuries · Data collection · Final report · Mar 15, 2012 · N7306C · Substantial damage
  > The pilot’s inadequate compensation for the wind conditions during takeoff.
- [NTSB WPR12CA103](https://openairdocs.org/ntsb/WPR12CA103.md): Rockwell International S-2R · Yellow Pine, ID · Accident · No injuries · Data collection · Final report · Feb 5, 2012 · N4894X · Substantial damage
  > The pilot did not reduce the airplane’s descent rate prior to the landing flare/touchdown, which resulted in a hard landing.
- [NTSB ERA12CA291](https://openairdocs.org/ntsb/ERA12CA291.md): North American SNJ-6 · Kissimmee, FL · Accident · Serious injuries · Data collection · Final report · Nov 11, 2011 · N452WA · No damage
  > The passenger’s fall from the airplane during a normal egress.
- [NTSB WPR12CA026](https://openairdocs.org/ntsb/WPR12CA026.md): Ayres S2R-600 · Kahlotus, WA · Accident · Serious injuries · Data collection · Final report · Nov 2, 2011 · N1206S · Substantial damage
  > The pilot’s failure to maintain clearance from the ground due to his distraction with programming a global positioning system receiver.
- [NTSB ERA12CA050](https://openairdocs.org/ntsb/ERA12CA050.md): Air Tractor AT-301 · McAlpin, FL · Accident · No injuries · Data collection · Final report · Oct 24, 2011 · N3169C · Substantial damage
  > The pilot's misjudgment of the airplane's distance from known transmission lines.
- [NTSB ANC11FA107](https://openairdocs.org/ntsb/ANC11FA107.md): Dehavilland DHC-3T · Kodiak, AK · Accident · 1 fatal · Field investigation · Final report · Sep 24, 2011 · N361TT · Substantial damage
  > The pilot’s failure to maintain clearance from a tree during a low altitude maneuver and his failure to maintain control of the airplane. Contributing to the accident was the pilot’s use of over-the-counter sedating medications.
- [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 CEN11LA556](https://openairdocs.org/ntsb/CEN11LA556.md): Grumman G-164A · El Campo, TX · Accident · No injuries · Limited investigation · Final report · Aug 18, 2011 · N6567 · Substantial damage
  > Separation of the No. 3 cylinder exhaust valve rocker arm, which resulted in a loss of engine power.
- [NTSB WPR11LA386](https://openairdocs.org/ntsb/WPR11LA386.md): Air Tractor AT-401 · Hardin, MT · Accident · No injuries · Limited investigation · Final report · Aug 16, 2011 · N1012T · Substantial damage
  > The loss of engine power during takeoff due to the fatigue failure of the turbine wheel blades, which resulted from inadequate maintenance and inspections.
- [NTSB ERA11CA449](https://openairdocs.org/ntsb/ERA11CA449.md): North American AT-6D · Canon, GA · Accident · Minor injuries · Data collection · Final report · Aug 13, 2011 · N7435U · Substantial damage
  > The pilot's improper fuel management, which resulted in a loss of engine power due to fuel exhaustion.
- [NTSB CEN11LA598](https://openairdocs.org/ntsb/CEN11LA598.md): Air Tractor AT-301 · Edgeley, ND · Accident · No injuries · Limited investigation · Final report · Aug 13, 2011 · N73071 · Substantial damage
  > The loss of engine power for reasons that could not be determined because postaccident examination of the airplane and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN11FA562](https://openairdocs.org/ntsb/CEN11FA562.md): Air Tractor AT-301 · Nekoosa, WI · Accident · No injuries · Field investigation · Final report · Aug 4, 2011 · N4345S · Substantial damage
  > A total loss of engine power during initial climb for undetermined reasons.
- [NTSB WPR11LA366](https://openairdocs.org/ntsb/WPR11LA366.md): Ayres S2R-600 · Hazelton, ID · Accident · No injuries · Limited investigation · Final report · Aug 3, 2011 · N4021S · Substantial damage
  > Partial loss of engine power for undetermined reasons.
- [NTSB CEN11LA543](https://openairdocs.org/ntsb/CEN11LA543.md): Aero Commander S2R · Washington, IA · Accident · No injuries · Limited investigation · Final report · Aug 3, 2011 · N1735S · Substantial damage
  > The loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN11CA570](https://openairdocs.org/ntsb/CEN11CA570.md): Air Tractor AT-301 · Minot, ND · Accident · No injuries · Data collection · Final report · Aug 3, 2011 · N8764S · Substantial damage
  > The pilot's failure to maintain directional control during the crosswind landing, resulting in a ground loop.
- [NTSB WPR11LA320](https://openairdocs.org/ntsb/WPR11LA320.md): Schweizer G-164B · Yuba City, CA · Accident · No injuries · Limited investigation · Final report · Jul 9, 2011 · N7503L · Substantial damage
  > High-cycle fatigue on the 1st-stage compressor blade retaining ring, which resulted in the ring’s fracture and a subsequent loss of engine power.
- [NTSB WPR11CA286](https://openairdocs.org/ntsb/WPR11CA286.md): Air Tractor AT301 · Circle, MT · Accident · No injuries · Data collection · Final report · Jun 24, 2011 · N2362D · Substantial damage
  > The pilot's failure to attain and maintain an adequate airspeed during initial climb.
- [NTSB WPR11LA279](https://openairdocs.org/ntsb/WPR11LA279.md): Rockwell International S-2R · Brawley, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 23, 2011 · N8520V · Substantial damage
  > The partial loss of engine power shortly after takeoff, which likely resulted from the failure of the piston connecting rod in cylinder number 3 due to hydraulic lock in that cylinder.
- [NTSB WPR11LA273](https://openairdocs.org/ntsb/WPR11LA273.md): Schweizer G-164B · Marysville, CA · Accident · No injuries · Limited investigation · Final report · Jun 21, 2011 · N3627G · Substantial damage
  > The separation of the right main landing gear during takeoff, due to fatigue.
- [NTSB WPR11LA272](https://openairdocs.org/ntsb/WPR11LA272.md): Air Tractor AT-301 · Hogeland, MT · Accident · 1 fatal · Limited investigation · Final report · Jun 21, 2011 · N3661B · Substantial damage
  > Collision with the ground while maneuvering at low altitude for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR11CA261](https://openairdocs.org/ntsb/WPR11CA261.md): Grumman Acft ENG Cor-Schweizer G-164B · Pullman, WA · Accident · Minor injuries · Data collection · Final report · Jun 15, 2011 · N8376K · Substantial damage
  > The pilot's failure to maintain clearance from power lines while maneuvering.

Next page: https://openairdocs.org/ntsb.md?engine=52016&page=5

## 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=4

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