# NTSB investigations: Pratt & Whitney R1340 series, LA

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 1 of 3 · 120 cases

## Latest cases

- [NTSB CEN24LA364](https://openairdocs.org/ntsb/CEN24LA364.md): Grumman G-164A · LaPlace, LA · Accident · No injuries · Class 4 · Limited · Final report · Sep 21, 2024 · N6565 · Substantial damage
  > Total loss of engine power during the agricultural application flight for reasons that could not be determined.
- [NTSB CEN24LA146](https://openairdocs.org/ntsb/CEN24LA146.md): Schweizer G-164B · Kaplan, LA · Accident · No injuries · Class 3 · Limited · Final report · Apr 2, 2024 · N75099 · Substantial damage
  > A partial loss of engine power for reasons that could not be determined.
- [NTSB CEN24LA029](https://openairdocs.org/ntsb/CEN24LA029.md): Ag-Cat G-164B · Abbeville, LA · Accident · No injuries · Class 4 · Limited · Final report · Oct 28, 2023 · N910MG · Substantial damage
  > The pilot’s failure to maintain clearance from a power line during an aerial application flight.
- [NTSB CEN22LA157](https://openairdocs.org/ntsb/CEN22LA157.md): Air Tractor AT-401 · Rayville, LA · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 26, 2022 · N9192E · Substantial damage
  > A loss of engine power for a reason that could not be determined based on available information.
- [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 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 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 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 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 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 CEN09CA283](https://openairdocs.org/ntsb/CEN09CA283.md): Gulfstream-Schweizer A/C Gulfstream · Iowa, LA · Accident · No injuries · Data collection · Final report · May 7, 2009 · N8080K · Destroyed
  > A partial loss of engine power due to the Number 8 cylinder head cracking and separating from the barrel.
- [NTSB CEN09CA151](https://openairdocs.org/ntsb/CEN09CA151.md): Schweizer G-164B · Ferriday, LA · Accident · No injuries · Data collection · Final report · Feb 1, 2009 · N3628T · Substantial damage
  > The pilot's loss of control following an impact with birds.
- [NTSB DFW08CA216](https://openairdocs.org/ntsb/DFW08CA216.md): Air Tractor AT-301 · Wisner, LA · Accident · No injuries · Data collection · Final report · Aug 22, 2008 · N2391Z · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB DFW08CA195](https://openairdocs.org/ntsb/DFW08CA195.md): Grumman 164A · Lake Providence, LA · Accident · Minor injuries · Data collection · Final report · Jul 22, 2008 · N7249 · Substantial damage
  > The pilot's failure to maintain control of the airplane while maneuvering during an aerial application. Contributing to the accident was the wind gust.
- [NTSB DFW08LA089](https://openairdocs.org/ntsb/DFW08LA089.md): Piper PA24-260 · Abbeville, LA · Accident · No injuries · Limited investigation · Final report · Mar 28, 2008 · N9097P · 2 aircraft · Substantial damage
  > The failure of both pilots to see and avoid the other approaching airplane. A contributing factor was the close proximity between the two private airstrips.
- [NTSB DFW07LA138](https://openairdocs.org/ntsb/DFW07LA138.md): Air Tractor AT-401 · Oak Grove, LA · Accident · No injuries · Limited investigation · Final report · Jun 6, 2007 · N92PK · Substantial damage
  > A complete loss of power due to failure of the impeller drive gear train and displacement of the blower spring drive mechanism, which resulted in seizure of the propeller shaft/crankshaft. Also causal was the failure of the phenolic separator bracket of the…
- [NTSB DFW05CA186](https://openairdocs.org/ntsb/DFW05CA186.md): Grumman-Schweizer G-164A · Tallulah, LA · Accident · Minor injuries · Data collection · Final report · Jul 21, 2005 · N8891H · Substantial damage
  > The partial loss of engine power as result of the fracture of the number five-cylinder exhaust valve rocker arm mounting boss. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB DFW05LA147](https://openairdocs.org/ntsb/DFW05LA147.md): Grumman G-164B · Lake Charles, LA · Accident · No injuries · Limited investigation · Final report · Jun 4, 2005 · N6832K · Substantial damage
  > The failure of the propeller governor which resulted in a forced landing. A contributing factor was the transmission wire.
- [NTSB FTW04CA246](https://openairdocs.org/ntsb/FTW04CA246.md): Grumman G-164A · Gilbert, LA · Accident · No injuries · Data collection · Final report · Sep 28, 2004 · N8661H · Substantial damage
  > The failure of a piston connecting rod for undetermined reasons resulting in the loss of engine power. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW04LA179](https://openairdocs.org/ntsb/FTW04LA179.md): Air Tractor AT-401 · Winnsboro, LA · Accident · No injuries · Limited investigation · Final report · Jul 10, 2004 · N10061 · Substantial damage
  > The pilot's mismanagement of fuel resulting in fuel starvation. A contributing factor was the ditch.
- [NTSB FTW04LA176](https://openairdocs.org/ntsb/FTW04LA176.md): Rockwell S-2R · Jonesville, LA · Accident · Minor injuries · Limited investigation · Final report · Jul 6, 2004 · N8486V · Substantial damage
  > The pilot's failure to maintain clearance with the power lines.
- [NTSB FTW04LA091](https://openairdocs.org/ntsb/FTW04LA091.md): Air Tractor AT-301 · Plain Dealing, LA · Accident · No injuries · Limited investigation · Final report · Mar 13, 2004 · N4359S · Destroyed
  > A loss of engine power due to undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW03LA204](https://openairdocs.org/ntsb/FTW03LA204.md): Air Tractor AT-301 · Winnsboro, LA · Accident · No injuries · Limited investigation · Final report · Aug 25, 2003 · N301AF · Substantial damage
  > The pilot's inadequate inflight planning, which resulted in a loss of engine power due to fuel exhaustion. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW03LA136](https://openairdocs.org/ntsb/FTW03LA136.md): Air Tractor AT-301 · Batchelor, LA · Accident · No injuries · Limited investigation · Final report · Apr 18, 2003 · N36531 · Substantial damage
  > The pilot's failure to abort the takeoff with adequate runway available. A contributing factor was the high density altitude.
- [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 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 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 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 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 FTW00LA210](https://openairdocs.org/ntsb/FTW00LA210.md): Grumman-Schweizer G-164B · Ville Platte, LA · Accident · 1 fatal · Limited investigation · Final report · Jul 15, 2000 · N428KG · Destroyed
  > The loss of control for an undetermined reason.
- [NTSB FTW00LA209](https://openairdocs.org/ntsb/FTW00LA209.md): Grumman-Schweizer G-164B · Kaplan, LA · Accident · No injuries · Limited investigation · Final report · Jul 13, 2000 · N8151K · Substantial damage
  > The loss of engine power for an undetermined reason. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW00LA162](https://openairdocs.org/ntsb/FTW00LA162.md): Air Tractor AT-401B · Thibodaux, LA · Accident · Serious injuries · Limited investigation · Final report · Jun 1, 2000 · N5028Q · Substantial damage
  > The pilot's failure to maintain clearance with the power lines while maneuvering during an aerial application flight. A factor was the sunglare on the windscreen.
- [NTSB FTW00LA074](https://openairdocs.org/ntsb/FTW00LA074.md): Air Tractor AT-401 · Rayville, LA · Accident · No injuries · Limited investigation · Final report · Jan 25, 2000 · N91968 · Substantial damage
  > The loss of engine power due to a crack in the #6 cylinder. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW99LA218](https://openairdocs.org/ntsb/FTW99LA218.md): Grumman-Schweizer G-164B · Ferriday, LA · Accident · No injuries · Limited investigation · Final report · Aug 12, 1999 · N8253K · Substantial damage
  > The pilot's failure to refuel the airplane which resulted in a loss of engine power due to fuel exhaustion. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW96LA388](https://openairdocs.org/ntsb/FTW96LA388.md): Schweizer G-164B · Ferriday, LA · Accident · No injuries · Limited investigation · Final report · Sep 17, 1996 · N8498K · Substantial damage
  > The partial loss of engine power due to a cracked cylinder head. Factors were the oil leak which restricted the pilot's visual lookout and the lack of suitable terrain for the forced landing.
- [NTSB FTW96LA205](https://openairdocs.org/ntsb/FTW96LA205.md): Grumman G-164B · Iowa, LA · Accident · No injuries · Limited investigation · Final report · May 10, 1996 · N6832K · Substantial damage
  > the pilot's selection of an unsuitable area for takeoff. The high vegetation (tall grass) was a related factor.
- [NTSB FTW96FA200](https://openairdocs.org/ntsb/FTW96FA200.md): North American Harvard MK II · Lafayette, LA · Accident · 1 fatal · Field investigation · Final report · May 4, 1996 · N2755Z · Destroyed
  > failure of the pilot to maintain adequate airspeed and/or altitude, while performing aerobatic flight.
- [NTSB FTW95LA263](https://openairdocs.org/ntsb/FTW95LA263.md): Grumman G-164A · Cheneyville, LA · Accident · No injuries · Limited investigation · Final report · Jun 27, 1995 · N8685H · Substantial damage
  > The pilot's failure to maintain adequate airspeed at a low altitude.
- [NTSB FTW95LA205](https://openairdocs.org/ntsb/FTW95LA205.md): Grumman G-164B · St Martinville, LA · Accident · Serious injuries · Limited investigation · Final report · May 17, 1995 · N8365K · Destroyed
  > The pilot's failure to maintain control of the aircraft. A factor was the high winds.
- [NTSB FTW94LA200](https://openairdocs.org/ntsb/FTW94LA200.md): Air Tractor AT-401 · Pioneer, LA · Accident · Minor injuries · Limited investigation · Final report · Jun 16, 1994 · N10112 · Substantial damage
  > Fuel exhaustion due to the pilot's failure to refuel. A factor was a lack of suitable terrain for the forced landing.
- [NTSB FTW93LA238](https://openairdocs.org/ntsb/FTW93LA238.md): Grumman G-164B · Pioneer, LA · Accident · No injuries · Limited investigation · Final report · Aug 12, 1993 · N8227K · 2 aircraft · Substantial damage
  > The failure by both pilots to maintain visual lookout. Factors were the inadequate radio communications by both pilots, and the departing pilot's failure to follow procedures and directives.
- [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 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 DEN91LA077](https://openairdocs.org/ntsb/DEN91LA077.md): Grumman G-164A · Ville Platte, LA · Accident · Serious injuries · Limited investigation · Final report · May 27, 1991 · N48383 · Substantial damage
  > Premature pull up from an aerial application swath run resulting in a collision with an electrical transmission line.
- [NTSB FTW91LA076](https://openairdocs.org/ntsb/FTW91LA076.md): Grumman G-164 · Pioneer, LA · Accident · No injuries · Limited investigation · Final report · May 3, 1991 · N7361 · Substantial damage
  > The pilot's use of a runway unsuitable due to recent rains.
- [NTSB FTW90DRD07](https://openairdocs.org/ntsb/FTW90DRD07.md): Grumman G-164A · Ville Platte, LA · Accident · No injuries · Final report · May 2, 1990 · N8938H · Destroyed
  > Partial loss of engine power due to a cracked number four cylinder intake rocker box housing. The lack of a suitable forced landing site was a related factor.
- [NTSB FTW90DRD04](https://openairdocs.org/ntsb/FTW90DRD04.md): Grumman G-164B · Fenton, LA · Accident · No injuries · Final report · Apr 3, 1990 · N6714K · Destroyed
  > Failure of the elevator control rod end bearing.
- [NTSB FTW89DRD12](https://openairdocs.org/ntsb/FTW89DRD12.md): Schweizer G-164B · Donaldsonville, LA · Accident · No injuries · Final report · Jul 29, 1989 · N8172K · Substantial damage
  > Loss of engine power for undetermined reasons. A contributing factor was the soft terrain.
- [NTSB FTW89DRD11](https://openairdocs.org/ntsb/FTW89DRD11.md): Schweizer G-164A · Lake Arthur, LA · Accident · No injuries · Final report · Jul 19, 1989 · N48377 · Substantial damage
  > Loss of engine power for undetermined reasons. The high weeds (vegetation) & levee (dirt bank) were considered to be related factors.
- [NTSB FTW89DRD07](https://openairdocs.org/ntsb/FTW89DRD07.md): Grumman-Schweizer G-164A · Morse, LA · Accident · No injuries · Final report · Jun 15, 1989 · N8916H · Substantial damage
  > Loss of engine power for an undetermined reason. The soft terrain was a contributing factor.

Next page: https://openairdocs.org/ntsb.md?engine=52016&state=LA&page=2

## 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."eventStateOrRegion" = 'LA' AND c."eventCountry" = 'USA'
  AND 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&state=LA

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