# NTSB investigations: Pratt & Whitney R1340 series, AR: Loss of engine power(total) - mech failure/malf

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.

## Latest cases

- [NTSB FTW96LA135](https://openairdocs.org/ntsb/FTW96LA135.md): Rockwell S-2R · Winchester, AR · Accident · Minor injuries · Limited investigation · Final report · Feb 27, 1996 · N431BL · Substantial damage
  > Failure of the engine master rod. A factor relating to the accident was: the lack of suitable terrain for a forced landing, due to the proximity of a power line and trees.
- [NTSB FTW96LA007](https://openairdocs.org/ntsb/FTW96LA007.md): Grumman G-164A · Hamburg, AR · Accident · Minor injuries · Limited investigation · Final report · Oct 5, 1995 · N9873 · Substantial damage
  > Loss of engine power due to a cylinder failure. A factor relating to the accident was: the lack of suitable terrain for the forced landing.
- [NTSB FTW95LA213](https://openairdocs.org/ntsb/FTW95LA213.md): Air Tractor AT-301 · Caldwell, AR · Accident · No injuries · Limited investigation · Final report · May 19, 1995 · N3655Z · Substantial damage
  > The loss of power due to a crack in the #4 cylinder. Factors were the lack of suitable terrain for the forced landing and proper touchdown point not possible.
- [NTSB FTW94LA256](https://openairdocs.org/ntsb/FTW94LA256.md): Air Tractor AT-401 · Mcgehee, AR · Accident · No injuries · Limited investigation · Final report · Aug 2, 1994 · N45297 · Substantial damage
  > Total loss of engine power as the engine seized due to a blower bearing failure. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW94LA164](https://openairdocs.org/ntsb/FTW94LA164.md): Aero Commander S2R · Monticello, AR · Accident · No injuries · Limited investigation · Final report · May 17, 1994 · N4080X · Substantial damage
  > The loss of engine power due to the number 2 cylinder cracking. A factor was the lack of suitable terrain for the forced landing.
- [NTSB DEN93LA081](https://openairdocs.org/ntsb/DEN93LA081.md): Air Tractor AT-401 · Dermott, AR · Accident · No injuries · Limited investigation · Final report · Jul 15, 1993 · N1009T · Substantial damage
  > Power loss due to the total failure of the engine's master rod. Factors were an improper engine overhaul and the lack of suitable terrain for a forced landing.
- [NTSB FTW92DPG10](https://openairdocs.org/ntsb/FTW92DPG10.md): Rockwell S2R-R3S · Minturn, AR · Accident · No injuries · Final report · Jul 24, 1992 · N8441V · Substantial damage
  > The loss of engine power and the encounter with unsuitable terrain during the forced landing.
- [NTSB FTW92DPG06](https://openairdocs.org/ntsb/FTW92DPG06.md): Grumman G-164A · Swifton, AR · Accident · No injuries · Final report · Jul 6, 1992 · N8922H · Substantial damage
  > Loss of engine power. A factor was the lack of suitable terrain for forced landing.
- [NTSB FTW90DPG08](https://openairdocs.org/ntsb/FTW90DPG08.md): Air Tractor AT-301 · Corning, AR · Accident · Serious injuries · Final report · Aug 14, 1990 · N4433S · Substantial damage
  > Blockage of the carburetor Air intake by a collapsed Air induction hose due to improper maintenance by an unknown party.
- [NTSB MKC90LA129](https://openairdocs.org/ntsb/MKC90LA129.md): Rockwell S2R · Tilton, AR · Accident · No injuries · Limited investigation · Final report · Jun 15, 1990 · N8421V · Substantial damage
  > Failure of the engine blower(supercharger). Related to the accident was the soft/wet terrain, where the forced landing was performed.
- [NTSB MKC89LA170](https://openairdocs.org/ntsb/MKC89LA170.md): Grumman G-164B · Portland, AR · Accident · No injuries · Limited investigation · Final report · Jul 28, 1989 · N8116K · Substantial damage
  > Engine failure due to failure of an engine cylinder.
- [NTSB MKC89LA079](https://openairdocs.org/ntsb/MKC89LA079.md): Grumman G-164A · Stuttgart, AR · Accident · Minor injuries · Limited investigation · Final report · Mar 11, 1989 · N9874 · Substantial damage
  > Failure of the engine blower assembly drive shaft, while maneuvering at low altitude, and failure of the pilot to maintain adequate airspeed, which resulted in a stall before he could land.
- [NTSB MKC88LA137](https://openairdocs.org/ntsb/MKC88LA137.md): Grumman G164B · Knobel, AR · Accident · No injuries · Limited investigation · Final report · Jul 26, 1988 · N2500W · Substantial damage
  > The plt said he had just completed an aerial application operation and was returning to his base airfield to re-load. While in a low level cruise, the engine quit abruptly, and an emergency ldg was attempted in a soft, muddy soy bean field. During the ldg…
- [NTSB MKC86LA121](https://openairdocs.org/ntsb/MKC86LA121.md): Aero Commander S-2R · Pocahontas, AR · Accident · No injuries · Limited investigation · Final report · May 31, 1986 · N8896Q · Substantial damage
  > The pilot stated that this was his third flight of the morning with a full load of fertilizer. Reportedly, he was in the process of aerial application, when the engine quit. He made a forced landing on a short field road. He further stated that the ground…
- [NTSB MKC85LA151](https://openairdocs.org/ntsb/MKC85LA151.md): Aero Commander S2R · Paragould, AR · Accident · No injuries · Limited investigation · Final report · Jul 3, 1985 · N5543X · Substantial damage
  > The acft was being used in aerial application of ordram when engine failed. A hard landing resulted during the forced landing in an open fld. Investigation revealed the float needle seat ass'y backed out of the threads in the main body of the carburetor FAR…
- [NTSB MKC85LA006](https://openairdocs.org/ntsb/MKC85LA006.md): Grumman G-164A · Cotton Plant, AR · Accident · No injuries · Limited investigation · Final report · Oct 11, 1984 · N8644H · Substantial damage
  > During aerial application flight, the engine master connecting rod failed. Forced landing was performed in a Cotton field. Acft nosed over during landing roll due to terrain conditions. Engine had 176 hours since major ovhl.
- [NTSB MKC84LA269](https://openairdocs.org/ntsb/MKC84LA269.md): Rockwell S-2R · Weiner, AR · Accident · Minor injuries · Limited investigation · Final report · Sep 5, 1984 · N4924X · Substantial damage
  > The plt was executing a turn around maneuver to continue spraying when the #2 cyl broke free from the eng & it completely shut down. The acft struck the levee of a bean field & flipped over, coming to rest in an inverted position. Post crash examination…
- [NTSB MKC84LA210](https://openairdocs.org/ntsb/MKC84LA210.md): Grumman G164B · Mc Gehee, AR · Accident · No injuries · Limited investigation · Final report · Jul 9, 1984 · N8222K · Substantial damage
  > The acft was engaged in an aerial application flt when the eng lost power. The plt made a forced landing in a bean field. During the landing roll, the acft struck a levee that was obscured by high vegetation & nosed over. A post-accident investigation…

## 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" = 'AR' 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')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 351))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52016&occurrence=351&state=AR

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