# 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 9 of 34 · 1,656 cases

## Cases, newest first

- [NTSB CHI03LA095](https://openairdocs.org/ntsb/CHI03LA095.md): Air Tractor AT-401 · Knox, IN · Accident · Serious injuries · Limited investigation · Final report · Mar 31, 2003 · N45297 · Substantial damage
  > A loss of engine power due to oil starvation as a result of the failure of the master rod bearing. Contributing factors were the tree line at the edge of the field, and the unsuitable terrain.
- [NTSB FTW03LA084](https://openairdocs.org/ntsb/FTW03LA084.md): Air Tractor AT-401 · Alamo, TX · Accident · Serious injuries · Limited investigation · Final report · Jan 14, 2003 · N1537R · Substantial damage
  > The pilot's failure to maintain airspeed which resulted in a stall. Low altitude flight is a contributing factor.
- [NTSB ANC03LA021](https://openairdocs.org/ntsb/ANC03LA021.md): de Havilland DHC-3 · Nikolai, AK · Accident · No injuries · Limited investigation · Final report · Dec 28, 2002 · N3904 · Substantial damage
  > An improper and undocumented major repair of the elevator torque tube support assembly by an unknown person, which resulted in an in-flight disconnection of the airplane's right elevator, and a jammed rudder. A factor associated with the accident is the…
- [NTSB DEN03LA016](https://openairdocs.org/ntsb/DEN03LA016.md): North American T-6G · Elbert, CO · Accident · No injuries · Limited investigation · Final report · Nov 17, 2002 · N7197C · Substantial damage
  > overload failure of the cable between the left rudder pedal and the tail wheel, rendering directional control impossible and resulting in an inadvertent ground loop and nose over. Contributing factors were the crosswind and the soft, wet ground.
- [NTSB FTW02LA256](https://openairdocs.org/ntsb/FTW02LA256.md): Air Tractor AT-301 · Altus, OK · Accident · Minor injuries · Limited investigation · Final report · Sep 14, 2002 · N23736 · Substantial damage
  > the pilot's failure to maintain clearance with electrical wires while maneuvering during an aerial application flight.
- [NTSB ANC02LA115](https://openairdocs.org/ntsb/ANC02LA115.md): de Havilland DHC-3 · Tenakee Springs, AK · Accident · No injuries · Limited investigation · Final report · Sep 4, 2002 · N335AK · Substantial damage
  > The pilot's misjudgment of the airplane's speed/distance from a dock resulting in the airplane drifting into a wooden piling during a taxi from landing. A factor in the accident was the presence of a tidal current.
- [NTSB FTW02LA245](https://openairdocs.org/ntsb/FTW02LA245.md): Air Tractor AT-401 · Hearne, TX · Accident · Minor injuries · Limited investigation · Final report · Aug 30, 2002 · N9193Y · Substantial damage
  > The pilot's failure to maintain clearance with a pump rig while maneuvering during an aerial application flight. A factor was the object.
- [NTSB LAX02LA257](https://openairdocs.org/ntsb/LAX02LA257.md): Air Tractor AT-301 · Dos Palos, CA · Accident · No injuries · Limited investigation · Final report · Aug 22, 2002 · N8793S · Substantial damage
  > the failure of the propeller blade due to fatigue. Factors in the accident were the inadequate maintenance-repair of the blade, and, inadequate pilot preflight inspections.
- [NTSB SEA02LA166](https://openairdocs.org/ntsb/SEA02LA166.md): Aero Commander S2R Thrush · Connell, WA · Accident · No injuries · Limited investigation · Final report · Aug 21, 2002 · N8870Q · Substantial damage
  > The pilot's failure to adequately compensate for wind conditions and his failure to maintain directional control. Factors include rough uneven terrain.
- [NTSB FTW02LA239](https://openairdocs.org/ntsb/FTW02LA239.md): Schweizer G-164B · Simmesport, LA · Accident · No injuries · Limited investigation · Final report · Aug 20, 2002 · N991QC · Substantial damage
  > the contamination of the fuel system with water and a foreign material.
- [NTSB CHI02LA238](https://openairdocs.org/ntsb/CHI02LA238.md): Schweizer G-164B · Sturgis, MI · Accident · No injuries · Limited investigation · Final report · Aug 7, 2002 · N8444K · Substantial damage
  > The failure of the turbine section of the engine, and the unsuitable terrain encountered for the forced landing. The low altitude was a factor.
- [NTSB ATL02LA153](https://openairdocs.org/ntsb/ATL02LA153.md): Air Tractor AT-301 · Memphis, TN · Accident · No injuries · Limited investigation · Final report · Aug 6, 2002 · N3164E · Substantial damage
  > The pilot's decision to make a precautionary landing to an unsuitable sod airstrip that resulted in a ground loop. A factor was tall vegetation.
- [NTSB LAX02LA246](https://openairdocs.org/ntsb/LAX02LA246.md): Aero Commander S2R-T34 · Los Banos, CA · Accident · No injuries · Limited investigation · Final report · Aug 5, 2002 · N8822Q · Substantial damage
  > The pilot's failure to maintain an adequate airspeed while maneuvering, which resulted in an inadvertent stall.
- [NTSB FTW02LA221](https://openairdocs.org/ntsb/FTW02LA221.md): Grumman G-164A · New Roads, LA · Accident · Minor injuries · Limited investigation · Final report · Jul 29, 2002 · N48523 · Substantial damage
  > The pilot's failure to maintain adequate airspeed resulting in an inadvertent stall/spin of the airplane.
- [NTSB CHI02LA221](https://openairdocs.org/ntsb/CHI02LA221.md): Air Tractor 301 · Ulen, MN · Accident · Minor injuries · Limited investigation · Final report · Jul 26, 2002 · N3167P · Substantial damage
  > The pilot not performing an aborted takeoff. A factor was the soybean crop.
- [NTSB CHI02CA224](https://openairdocs.org/ntsb/CHI02CA224.md): Air Tractor AT-301 · Malta, IL · Accident · Minor injuries · Data collection · Final report · Jul 26, 2002 · N2326S · Substantial damage
  > The probable cause of this accident was fuel exhaustion, due to a failure to properly compute initial fuel quantity and/or fuel consumption.
- [NTSB CHI02LA206](https://openairdocs.org/ntsb/CHI02LA206.md): Air Tractor AT-401B · Pratt, KS · Accident · No injuries · Limited investigation · Final report · Jul 22, 2002 · N60747 · Substantial damage
  > The pilot's failure to maintain terrain clearance. A factor was low altitude flight.
- [NTSB MIA02LA135](https://openairdocs.org/ntsb/MIA02LA135.md): Aero Commander S2R · Cochran, GA · Accident · No injuries · Limited investigation · Final report · Jul 17, 2002 · N8943Q · Substantial damage
  > A loss of power while conducting aerial application to cotton crops due to failure of a magneto housing, and the resultant emergency descent and landing to an unsuitable field, causing the collision with a tree.
- [NTSB SEA02LA123](https://openairdocs.org/ntsb/SEA02LA123.md): Grumman-Schweizer G-164B · Weiser, ID · Accident · No injuries · Limited investigation · Final report · Jul 6, 2002 · N8440K · Substantial damage
  > The fracture of the number 3 cylinder exhaust pushrod resulting in the exhaust valve's inability to open during the exhaust cycle and the subsequent engine stoppage. Contributing factors were the ditch and elevated roadway which the aircraft crossed during…
- [NTSB LAX02LA216](https://openairdocs.org/ntsb/LAX02LA216.md): Grumman-Schweizer G-164B · Sacramento, CA · Accident · No injuries · Limited investigation · Final report · Jul 6, 2002 · N3631B · Substantial damage
  > Propeller blade failure due to fatigue. A contributing factor was the rising embankment.
- [NTSB MIA02LA145](https://openairdocs.org/ntsb/MIA02LA145.md): Air Tractor AT-301 · Dyer, TN · Accident · No injuries · Limited investigation · Final report · Jun 28, 2002 · N73088 · Substantial damage
  > The failure of the pilot to maintain wingtip clearance with corn crops at the edge of the road resulting in the collision with the crops.
- [NTSB SEA02LA111](https://openairdocs.org/ntsb/SEA02LA111.md): Rockwell S-2R Thrush · Winifred, MT · Accident · Minor injuries · Limited investigation · Final report · Jun 26, 2002 · N600DN · Substantial damage
  > The pilot's improper inflight decision to continue his aerial application flight after he realized the aircraft might be low on fuel. Factors include the pilot's failure to maintain clearance from a shed.
- [NTSB LAX02LA203](https://openairdocs.org/ntsb/LAX02LA203.md): Air Tractor AT-301 · Westmorland, CA · Accident · 1 fatal · Limited investigation · Final report · Jun 20, 2002 · N8719S · Destroyed
  > The pilot's failure to maintain clearance with the power lines while maneuvering during an aerial application flight. A factor was the dark night condition.
- [NTSB CHI02LA152](https://openairdocs.org/ntsb/CHI02LA152.md): Grumman G-164A · Langdon, ND · Accident · No injuries · Limited investigation · Final report · Jun 5, 2002 · N7835 · Destroyed
  > The pilot did not maintain directional control while taxiing. A contributing factor was the wind gust condition present at the time of the accident.
- [NTSB FTW02LA152](https://openairdocs.org/ntsb/FTW02LA152.md): Grumman-Schweizer G-164A · Hathaway, LA · Accident · No injuries · Limited investigation · Final report · May 17, 2002 · N48533 · Substantial damage
  > the loss of engine power for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB CHI02LA133](https://openairdocs.org/ntsb/CHI02LA133.md): Rockwell S-2R · Bancroft, WI · Accident · No injuries · Limited investigation · Final report · May 10, 2002 · N4224X · Substantial damage
  > The loss of engine power due to contamination of the fuel system from an unknown source and the blocked fuel filter. The rough terrain was a factor.
- [NTSB LAX02LA143](https://openairdocs.org/ntsb/LAX02LA143.md): Grumman-Schweizer G-164C · Olivehurst, CA · Accident · No injuries · Limited investigation · Final report · Apr 25, 2002 · N6702K · Substantial damage
  > Fuel starvation due to the failure of an engine accessory component. A contributing factor was the rough terrain.
- [NTSB FTW02LA111](https://openairdocs.org/ntsb/FTW02LA111.md): Grumman G-164A · Wynne, AR · Accident · No injuries · Limited investigation · Final report · Apr 4, 2002 · N8916H · Substantial damage
  > The inadequate supervision by the flight instructor of the pilot who was receiving instruction resulting in the excessive application of the brakes during the landing roll resulting in a nose over. A factor was the gusty crosswind conditions.
- [NTSB ATL02FA072](https://openairdocs.org/ntsb/ATL02FA072.md): North American T-6-AT6D · Gainesville, GA · Accident · 2 fatal · Field investigation · Final report · Apr 1, 2002 · N7471C · Substantial damage
  > A loss of engine power following a supercharger bearing failure and subsequent collision with the ground while maneuvering for an emergency landing.
- [NTSB FTW02LA107](https://openairdocs.org/ntsb/FTW02LA107.md): Grumman-Schweizer G-164B · Ferriday, LA · Accident · No injuries · Limited investigation · Final report · Mar 28, 2002 · N8498K · Substantial damage
  > the failure of the number three cylinder exhaust rocker arm, resulting in a total loss of engine power. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB CHI02LA095](https://openairdocs.org/ntsb/CHI02LA095.md): Schweizer G-164A · Cascade, IA · Accident · Serious injuries · Limited investigation · Final report · Mar 20, 2002 · N9763 · Substantial damage
  > The pilot's inadequate preflight planning/preparation and his failure to maintain clearance with the wire. A factor associated with the accident was the wire that the airplane contacted.
- [NTSB MIA02WA063](https://openairdocs.org/ntsb/MIA02WA063.md): Grumman G-73T · Paradise Island, Bahamas · Accident · No injuries · Foreign investigation · Feb 16, 2002 · N130FB · Substantial damage
- [NTSB LAX02LA034](https://openairdocs.org/ntsb/LAX02LA034.md): Air Tractor AT-401B · Las Vegas, NV · Accident · No injuries · Limited investigation · Final report · Nov 30, 2001 · N9186J · 2 aircraft · No damage
  > the failure of the AT-401 pilot to maintain clearance with the AT-402 airplane during landing. Contributing factors were the unreliable communication radio in the AT-401, the AT-401 pilot's continued flight with known communication radio problems, and the…
- [NTSB LAX02LA014](https://openairdocs.org/ntsb/LAX02LA014.md): North American SNJ-5 · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · Oct 23, 2001 · N3246G · Substantial damage
  > The pilot's inadequate compensation for an existing crosswind condition, and failure to maintain directional control on the landing rollout.
- [NTSB FTW02LA020](https://openairdocs.org/ntsb/FTW02LA020.md): Air Tractor AT-301 · Morton, TX · Accident · 1 fatal · Limited investigation · Final report · Oct 22, 2001 · N4395S · Destroyed
  > The pilot's loss of control of the airplane during an aerial application maneuver.
- [NTSB ATL02LA007](https://openairdocs.org/ntsb/ATL02LA007.md): North American SNJ-6 · Kissimmee, FL · Accident · No injuries · Limited investigation · Final report · Oct 20, 2001 · N453WA · 2 aircraft · Minor damage
  > See narrative for ATL02LA007A.
- [NTSB FTW01LA209](https://openairdocs.org/ntsb/FTW01LA209.md): Grumman G-164A · Eagle Lake, TX · Accident · No injuries · Limited investigation · Final report · Sep 19, 2001 · N73PB · Destroyed
  > the partial loss of engine power for an undetermined reason, which resulted in an in flight collision with trees and terrain.
- [NTSB ANC01LA138](https://openairdocs.org/ntsb/ANC01LA138.md): de Havilland DHC-3 · Cordova, AK · Accident · Minor injuries · Limited investigation · Final report · Sep 7, 2001 · N254AW · Substantial damage
  > The loss of engine power during cruise due to the fracture of an engine cylinder exhaust valve.
- [NTSB CHI01LA300](https://openairdocs.org/ntsb/CHI01LA300.md): Grumman-Schweizer G-164B · Atlantic, IA · Accident · No injuries · Limited investigation · Final report · Sep 3, 2001 · N6598K · Destroyed
  > The loss of engine power for undetermined reasons during the takeoff and initial climb, and the unsuitable terrain encountered during the forced landing. Factors relating to this accident were the corn crop and the low altitude.
- [NTSB ATL01LA100](https://openairdocs.org/ntsb/ATL01LA100.md): Rockwell S2R · Bentonia, MS · Accident · No injuries · Limited investigation · Final report · Aug 29, 2001 · N8438V · Substantial damage
  > The loss of engine power due to the loss of throttle cable continunity. The throttle cable linkage was worn beyond servicable limits. A factor was uneven terrain at the emergency landing site.
- [NTSB ATL01LA099](https://openairdocs.org/ntsb/ATL01LA099.md): Air Tractor AT-401 · Batesville, MS · Accident · Minor injuries · Limited investigation · Final report · Aug 28, 2001 · N91922 · Destroyed
  > The loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for an emergency landing.
- [NTSB FTW01LA184](https://openairdocs.org/ntsb/FTW01LA184.md): Rockwell S-2R · Fabens, TX · Accident · No injuries · Limited investigation · Final report · Aug 17, 2001 · N4890X · Substantial damage
  > the pilot's inadequate preflight resulting in loss of engine power due to fuel exhaustion. A contributing factor was the power line.
- [NTSB CHI01LA286](https://openairdocs.org/ntsb/CHI01LA286.md): Grumman-Schweizer G-164A · Petersburg, NE · Accident · No injuries · Limited investigation · Final report · Aug 16, 2001 · N4598 · Substantial damage
  > The failure of the engine cylinder, and the unsuitable terrain for landing encountered by the pilot. Factors were the low altitude and the muddy field.
- [NTSB FTW01LA178](https://openairdocs.org/ntsb/FTW01LA178.md): Air Tractor AT-401 · Grand Coteau, LA · Accident · No injuries · Limited investigation · Final report · Aug 9, 2001 · N10140 · Substantial damage
  > the loss of engine power while maneuvering, which resulted from a fractured #4 cylinder head at the exhaust valve rocker arm boss. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB SEA01LA146](https://openairdocs.org/ntsb/SEA01LA146.md): Rockwell S-2R · Latah, WA · Accident · No injuries · Limited investigation · Final report · Aug 4, 2001 · N4237X · Substantial damage
  > the failure of a cylinder head exhaust rocker shaft boss while the aircraft was performing aerial application. Factors include soft terrain and a drop-off in the field where the emergency landing took place.
- [NTSB MIA01LA204](https://openairdocs.org/ntsb/MIA01LA204.md): Grumman-Schweizer G-164B · Edison, GA · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 2001 · N6816Q · Substantial damage
  > Partial loss of engine power for undetermined reasons during takeoff resulting in the airplane descending, colliding with the ground, and nosing over.
- [NTSB CHI01LA251](https://openairdocs.org/ntsb/CHI01LA251.md): Aero Commander S2R · Pierre, SD · Accident · Serious injuries · Limited investigation · Final report · Jul 31, 2001 · N5551X · Destroyed
  > clearance not obtained by the pilot. A contributing factor was the transmission line.
- [NTSB CHI01IA246](https://openairdocs.org/ntsb/CHI01IA246.md): Air Tractor AT-401 · Kenesaw, NE · Incident · No injuries · Incident investigation · Final report · Jul 27, 2001 · N4553K · Minor damage
  > The propeller blade fatigue leading to its tip separating during an aerial application. Factors were no suitable terrain for an emergency landing, high vegetation, and soft terrain encountered during the emergency landing.
- [NTSB CHI01LA242](https://openairdocs.org/ntsb/CHI01LA242.md): Ag-Cat G-164B · Wallace, NE · Accident · No injuries · Limited investigation · Final report · Jul 26, 2001 · N80083 · Substantial damage
  > The inadequate preflight planning by the pilot, the pilot initiating the flight with an inadequate fuel supply, and the unsuitable terrain encountered during the forced landing. Factors were the fuel exhaustion, the low altitude and the soft field.
- [NTSB CHI01LA229](https://openairdocs.org/ntsb/CHI01LA229.md): Grumman-Schweizer G-164A · Dodge Center, MN · Accident · No injuries · Limited investigation · Final report · Jul 22, 2001 · N5398 · Destroyed
  > The pilot not maintaining directional control on the ground during the takeoff roll. Factors relating to this accident were the total failure of the propeller governor and the corn crop.

Next page: https://openairdocs.org/ntsb.md?engine=52016&page=10

## 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=9

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.