# NTSB investigations: Pratt & Whitney R1340 series, 1994

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 MIA95LA015](https://openairdocs.org/ntsb/MIA95LA015.md): Rockwell S-2R · Madison, MS · Accident · No injuries · Limited investigation · Final report · Nov 1, 1994 · N8456V · Destroyed
  > The pilots improper use of brakes during a precautionary landing.
- [NTSB MIA95LA008](https://openairdocs.org/ntsb/MIA95LA008.md): Schweizer G-164B · Immokalee, FL · Accident · No injuries · Limited investigation · Final report · Oct 24, 1994 · N3629X · Substantial damage
  > Failure of the pilot to refuel resulting in loss of engine power due to fuel exhaustion.
- [NTSB FTW95LA028](https://openairdocs.org/ntsb/FTW95LA028.md): Air Tractor AT-301 · Lubbock, TX · Accident · No injuries · Limited investigation · Final report · Oct 21, 1994 · N8523S · Substantial damage
  > The pilot's failure to maintain clearance with the irrigation equipment. A factor was pilot fatigue.
- [NTSB ATL95LA006](https://openairdocs.org/ntsb/ATL95LA006.md): Grumman G-164B · Jakin, GA · Accident · No injuries · Limited investigation · Final report · Oct 20, 1994 · N8960H · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB ATL95LA004](https://openairdocs.org/ntsb/ATL95LA004.md): Aero Commander S2R · Ashburn, GA · Accident · No injuries · Limited investigation · Final report · Oct 5, 1994 · N8971Q · Substantial damage
  > The failure of a blade counterweight bearing shaft, allowing one propeller blade to go to high pitch.
- [NTSB FTW94LA306](https://openairdocs.org/ntsb/FTW94LA306.md): Air Tractor AT-401 · Mcgehee, AR · Accident · No injuries · Limited investigation · Final report · Sep 20, 1994 · N4549N · Substantial damage
  > The loss of engine power due to undetermined reasons. A factor was the unsuitable terrain.
- [NTSB LAX94LA368](https://openairdocs.org/ntsb/LAX94LA368.md): North American SNJ-5 · Reno, NV · Accident · 1 fatal · Limited investigation · Final report · Sep 18, 1994 · N8540Z · 2 aircraft · Destroyed
  > that the pilot of the other airplane misjudged the distance between the airplanes. The other airplane pilot's diverted attention to the air race is a factor in this accident.
- [NTSB CHI94LA292](https://openairdocs.org/ntsb/CHI94LA292.md): Grumman G-164A · Clifton, IL · Accident · Minor injuries · Limited investigation · Final report · Aug 23, 1994 · N8971H · Destroyed
  > the pilots failure to keep visual contact with and to avoid unmarked powerlines adjacent to the crop field he was spraying.
- [NTSB LAX94LA327](https://openairdocs.org/ntsb/LAX94LA327.md): Aero Commander S2R · Firebaugh, CA · Accident · No injuries · Limited investigation · Final report · Aug 19, 1994 · N8843Q · Substantial damage
  > the loss of engine power due to the failure of the number 2 cylinder head. A factor was the dark night conditions which inhibited the pilot's ability to visually detect ground obstructions in the landing area.
- [NTSB FTW94LA271](https://openairdocs.org/ntsb/FTW94LA271.md): Rockwell S-2R · Clint, TX · Accident · Minor injuries · Limited investigation · Final report · Aug 4, 1994 · N4890X · Substantial damage
  > The power loss for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.
- [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 SEA94LA200](https://openairdocs.org/ntsb/SEA94LA200.md): Air Tractor AT-301 · Connell, WA · Accident · 1 fatal · Limited investigation · Final report · Jul 29, 1994 · N3649Y · Destroyed
  > The pilot's failure to maintain airspeed while conducting aerial application activities.
- [NTSB LAX94LA299](https://openairdocs.org/ntsb/LAX94LA299.md): Schweizer G-164B · Live Oak, CA · Accident · No injuries · Limited investigation · Final report · Jul 27, 1994 · N3627Q · Substantial damage
  > the improper adjustment of the fuel control unit by contract maintenance personnel.
- [NTSB ATL94LA142](https://openairdocs.org/ntsb/ATL94LA142.md): Grumman G-164A · Samson, AL · Accident · No injuries · Limited investigation · Final report · Jul 18, 1994 · N4242X · Substantial damage
  > The failure of the aileron torque tube bolt from fatigue, which resulted in an inflight loss of aircraft control and collision with terrain.
- [NTSB FTW94LA238](https://openairdocs.org/ntsb/FTW94LA238.md): Rockwell S-2R · Winchester, AR · Accident · Serious injuries · Limited investigation · Final report · Jul 15, 1994 · N4903X · Substantial damage
  > The loss of power due to the number one cylinder head cracking. A factor was the lack of suitable terrain for the forced landing.
- [NTSB MIA94LA172](https://openairdocs.org/ntsb/MIA94LA172.md): Aero Commander S2R · Rolling Fork, MS · Accident · No injuries · Limited investigation · Final report · Jul 3, 1994 · N8820Q · Substantial damage
  > The loss of engine power for undetermined causes. Contributing to the accident was the unsuitable terrain encountered during the forced landing.
- [NTSB ATL94LA130](https://openairdocs.org/ntsb/ATL94LA130.md): Air Tractor AT-301 · Autaugaville, AL · Accident · No injuries · Limited investigation · Final report · Jul 3, 1994 · N3659D · Substantial damage
  > The pilot's inadequate preflight planning, in that he did not properly evaluate the condition of the runway prior to takeoff, and his failure to abort the takeoff when adequate acceleration was not observed. Factors were the high vegetation (grass) on the…
- [NTSB ATL94LA128](https://openairdocs.org/ntsb/ATL94LA128.md): Air Tractor AT-301 · Smithville, GA · Accident · Minor injuries · Limited investigation · Final report · Jul 2, 1994 · N3649B · Destroyed
  > The failure of # 2 cylinder head.
- [NTSB MIA94LA168](https://openairdocs.org/ntsb/MIA94LA168.md): Air Tractor AT-401 · Walls, MS · Accident · Minor injuries · Limited investigation · Final report · Jun 27, 1994 · N45332 · Substantial damage
  > The partial loss of engine power for undetermined reasons. The sandy terrain was a factor.
- [NTSB ATL94LA127](https://openairdocs.org/ntsb/ATL94LA127.md): Air Tractor AT-301 · Finley, TN · Accident · No injuries · Limited investigation · Final report · Jun 27, 1994 · N36484 · Substantial damage
  > The loss of engine power for undetermined reasons. Factors were wet and soft terrain.
- [NTSB FTW94LA211](https://openairdocs.org/ntsb/FTW94LA211.md): Grumman-Schweizer G-164A · Dumas, AR · Accident · No injuries · Limited investigation · Final report · Jun 25, 1994 · N4222P · Destroyed
  > The pilot's failure to establish the proper airspeed before beginning a turn after takeoff.
- [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 LAX94LA247](https://openairdocs.org/ntsb/LAX94LA247.md): Grumman G-164A · Bakersfield, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 11, 1994 · N8507H · Substantial damage
  > The in-flight fire due to the spontaneous combustion of sulfur dust and subsequent forced landing. A factor was the high temperature.
- [NTSB ATL94GA111](https://openairdocs.org/ntsb/ATL94GA111.md): Grumman G-164A · Savannah, GA · Accident · No injuries · Final report · Jun 2, 1994 · N9868 · Substantial damage
  > The pilot's improper landing flare which resulted in a hard landing. A factor was the operators failure to provide a formal emergency dump procedure.
- [NTSB SEA94LA131](https://openairdocs.org/ntsb/SEA94LA131.md): Rockwell S-2R · Touchet, WA · Accident · Minor injuries · Limited investigation · Final report · May 28, 1994 · N5642X · Substantial damage
  > The pilot's inadequate compensation for wind conditions. The wind gusts were a factor.
- [NTSB CHI94LA176](https://openairdocs.org/ntsb/CHI94LA176.md): Snow 600-S2C · Bancroft, WI · Accident · No injuries · Limited investigation · Final report · May 25, 1994 · N1659S · Substantial damage
  > the pilots failure to select carburetor heat during an extended descent, which resulted in loss of engine power. Factors were carburetor icing conditions and the presence of a ditch at the forced landing site.
- [NTSB FTW94LA178](https://openairdocs.org/ntsb/FTW94LA178.md): Schweizer G-164B · Antonito, CO · Accident · No injuries · Limited investigation · Final report · May 24, 1994 · N6695K · Substantial damage
  > The pilot's improper compensation for wind conditions. A factor was the gusty crosswind and the pilot inadvertently becoming lost.
- [NTSB FTW94LA174](https://openairdocs.org/ntsb/FTW94LA174.md): Grumman G-164A · Stuttgart, AR · Accident · No injuries · Limited investigation · Final report · May 20, 1994 · N9678 · Substantial damage
  > Was the pilots failure to maintain terrain clearance.
- [NTSB ATL94LA104](https://openairdocs.org/ntsb/ATL94LA104.md): Grumman G-164B · Memphis, TN · Accident · No injuries · Limited investigation · Final report · May 20, 1994 · N6816Q · Substantial damage
  > The pilot's failure to maintain clearance from the earthen dike during the swath run.
- [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 SEA94LA117](https://openairdocs.org/ntsb/SEA94LA117.md): Schweizer G-164B · Yuba City, CA · Accident · No injuries · Limited investigation · Final report · May 12, 1994 · N8214S · Substantial damage
  > An inadvertent stall/mush after takeoff. The over-weight loading of the aircraft was a factor.
- [NTSB SEA94LA116](https://openairdocs.org/ntsb/SEA94LA116.md): Aero Commander S2R · Dayton, WA · Accident · No injuries · Limited investigation · Final report · May 7, 1994 · N5646X · Substantial damage
  > Total failure of the connecting rod.
- [NTSB FTW94LA145](https://openairdocs.org/ntsb/FTW94LA145.md): Grumman G-164A · El Campo, TX · Accident · Serious injuries · Limited investigation · Final report · May 7, 1994 · N9682 · Destroyed
  > The partial loss of engine power due to one magneto being weak and the other magneto arcing inside its case. A factor was the lack of suitable terrain for the forced landing.
- [NTSB CHI94LA148](https://openairdocs.org/ntsb/CHI94LA148.md): North American T-6G · Prairie Du Sac, WI · Accident · Minor injuries · Limited investigation · Final report · May 5, 1994 · N3715G · Substantial damage
  > inadequate compensation for wind conditions which resulted in a failure to maintain directional control. Factors associated with the accident were the crosswind conditions and the soft terrain.
- [NTSB LAX94LA205](https://openairdocs.org/ntsb/LAX94LA205.md): Grumman G-164B · Robbins, CA · Accident · No injuries · Limited investigation · Final report · Apr 23, 1994 · N6774K · Substantial damage
  > The pilot's improper use of the brakes.
- [NTSB FTW94LA131](https://openairdocs.org/ntsb/FTW94LA131.md): Gulfstream G-164B · Delaplaine, AR · Accident · Minor injuries · Limited investigation · Final report · Apr 21, 1994 · N8402K · Substantial damage
  > The loss of engine power for undetermined reasons. A factor was the low altitude at which the power loss occurred.
- [NTSB FTW94LA122](https://openairdocs.org/ntsb/FTW94LA122.md): Schweizer G-164 · Mount Bellvue, TX · Accident · No injuries · Limited investigation · Final report · Apr 9, 1994 · N3628T · Substantial damage
  > The pilot's failure to maintain directional control. Factors were the soft runway and gusty winds.
- [NTSB CHI94LA106](https://openairdocs.org/ntsb/CHI94LA106.md): Grumman G-164A · Sublette, KS · Accident · No injuries · Limited investigation · Final report · Mar 15, 1994 · N9686 · Substantial damage
  > the commercial pilot's failure to maintain clearance from terrain. Related factors are sun glare and rising terrain.
- [NTSB LAX94LA133](https://openairdocs.org/ntsb/LAX94LA133.md): Schweizer G-164B · Clarksburg, CA · Accident · No injuries · Limited investigation · Final report · Feb 23, 1994 · N36265 · Substantial damage
  > The total failure of the no. 1 cylinder due to fatigue resulting from an improperly adjusted mixture causing detonation. The soft, wet plowed field was a factor in this accident.
- [NTSB LAX94LA099](https://openairdocs.org/ntsb/LAX94LA099.md): Grumman G-164A · Davis, CA · Accident · Serious injuries · Limited investigation · Final report · Jan 20, 1994 · N8649H · Destroyed
  > was that the pilot misjudged the airplane's altitude during the swath run.

## 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 year(c."eventDate") = 1994
  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&year=1994

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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.