# NTSB investigations: Pratt & Whitney R1340 series, 1999

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 FTW00LA012](https://openairdocs.org/ntsb/FTW00LA012.md): Air Tractor AT-301 · Olton, TX · Accident · Minor injuries · Limited investigation · Final report · Oct 14, 1999 · N23930 · Substantial damage
  > The inflight separation of the propeller blade due to damage from a wire strike. A factor was the lack of suitable terrain for the forced landing.
- [NTSB DEN99LA169](https://openairdocs.org/ntsb/DEN99LA169.md): Schweizer G-164A · Animas, NM · Accident · Minor injuries · Limited investigation · Final report · Sep 23, 1999 · N8731H · Substantial damage
  > A inadvertent stall during initial climb following takeoff. Factor were: high gross weight, high density altitude, inadequate preflight planning and preparation, and soft terrain.
- [NTSB LAX99LA312](https://openairdocs.org/ntsb/LAX99LA312.md): Rockwell S-2R · Acampo, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 19, 1999 · N4168X · Destroyed
  > The pilot's failure to maintain runway alignment, which resulted in the aircraft encountering high vegetation, the loss of directional control, and collision with trees.
- [NTSB ATL99LA129](https://openairdocs.org/ntsb/ATL99LA129.md): Air Tractor AT-401 · Caledonia, MS · Accident · No injuries · Limited investigation · Final report · Sep 13, 1999 · N45205 · Substantial damage
  > The failure of the fuel control gear train due to oil contamination. A factor was Inadequate maintenance.
- [NTSB FTW99LA252](https://openairdocs.org/ntsb/FTW99LA252.md): Grumman-Schweizer G-164A · Seminole, TX · Accident · Minor injuries · Limited investigation · Final report · Sep 3, 1999 · N7362 · Destroyed
  > The pilot's failure to maintain clearance with powerlines. A factor was the pilot's diverted attention to the light bar for the electronic swath guidance system installed in the airplane.
- [NTSB DEN99LA155](https://openairdocs.org/ntsb/DEN99LA155.md): North American SNJ-4 (AT-6) · Mack, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 28, 1999 · N7011C · Substantial damage
  > The pilot misjudging his distance and altitude from the runway. A factor was the tall crops.
- [NTSB FTW99LA239](https://openairdocs.org/ntsb/FTW99LA239.md): Air Tractor AT-401 · Hart, TX · Accident · Minor injuries · Limited investigation · Final report · Aug 25, 1999 · N15119 · Substantial damage
  > The pilot's failure to maintain clearance with power lines.
- [NTSB FTW99LA225](https://openairdocs.org/ntsb/FTW99LA225.md): Rockwell S-2R · Dermott, AR · Accident · No injuries · Limited investigation · Final report · Aug 16, 1999 · N4896X · Substantial damage
  > The loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW99LA220](https://openairdocs.org/ntsb/FTW99LA220.md): Air Tractor AT-401 · Humphrey, AR · Accident · No injuries · Limited investigation · Final report · Aug 12, 1999 · N1031Q · Substantial damage
  > Fuel exhaustion as a result of the pilot's failure to refuel the airplane.
- [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 CHI99LA287](https://openairdocs.org/ntsb/CHI99LA287.md): Rockwell S-2R · Garden City, KS · Accident · No injuries · Limited investigation · Final report · Aug 11, 1999 · N4923X · Substantial damage
  > The pilot's misjudging his pull-up maneuver resulting in contact with the wire. A contributing factor was the wire.
- [NTSB MIA99LA212](https://openairdocs.org/ntsb/MIA99LA212.md): Air Tractor AT-401 · Moore Haven, FL · Accident · No injuries · Limited investigation · Final report · Aug 2, 1999 · N15585 · Substantial damage
  > The pilot exceeding the gross takeoff weight which reduced the climb capability and subsequent in-flight collision with terrain. Contributing to the accident was the high temperature and the pilot's failure to use aircraft performance data for the weather…
- [NTSB CHI99LA274](https://openairdocs.org/ntsb/CHI99LA274.md): North American AT-6G · Harlan, IA · Accident · No injuries · Limited investigation · Final report · Aug 1, 1999 · N98FP · Substantial damage
  > the failure of the pilot to maintain directional control of the aircraft during landing. Factors to the accident were the crosswind, the failure of the pilot to maintain compensation for the crosswind condition on approach, and the inadvertent ground loop…
- [NTSB CHI99LA268](https://openairdocs.org/ntsb/CHI99LA268.md): Air Tractor AT-401B · Edelstein, IL · Accident · Serious injuries · Limited investigation · Final report · Jul 31, 1999 · N61775 · Substantial damage
  > an inadequate fuel supply which resulted in fuel exhaustion. Factors associated with the accident were the low altitude at which the power loss occurred and the corn crop the airplane contacted.
- [NTSB CHI99LA258](https://openairdocs.org/ntsb/CHI99LA258.md): Air Tractor 401B · Mccanna, ND · Accident · Serious injuries · Limited investigation · Final report · Jul 24, 1999 · N6006A · Substantial damage
  > the inadvertent stall by the pilot.
- [NTSB SEA99LA125](https://openairdocs.org/ntsb/SEA99LA125.md): Rockwell S-2R · American Falls, ID · Accident · Minor injuries · Limited investigation · Final report · Jul 23, 1999 · N3649X · Substantial damage
  > A loss of engine power for undetermined reasons, and overload of the (right) main landing gear. A contributing factor was the rough terrain.
- [NTSB MIA99LA203](https://openairdocs.org/ntsb/MIA99LA203.md): Air Tractor 301 · Drew, MS · Accident · No injuries · Limited investigation · Final report · Jul 23, 1999 · N2368R · Substantial damage
  > a loss of engine power due to the failure of cylinder No. 4 boss, which was caused by fatigue cracking, resulting in a forced landing in marshy terrain and subsequent nose over.
- [NTSB SEA99LA115](https://openairdocs.org/ntsb/SEA99LA115.md): Grumman G-164B · Paul, ID · Accident · No injuries · Limited investigation · Final report · Jul 12, 1999 · N8005C · Substantial damage
  > The pilot's failure to attain adequate airspeed during takeoff and initial climb, resulting in stall/mush and inability of the aircraft to sustain level flight. Factors included high density altitude, a tailwind, an uphill takeoff surface, and crops in the…
- [NTSB CHI99LA215](https://openairdocs.org/ntsb/CHI99LA215.md): Grumman-Schweizer G-164B · Page, ND · Accident · No injuries · Limited investigation · Final report · Jul 3, 1999 · N6633K · Substantial damage
  > the pilot's failure to compensate for the wind conditions. Factors were the sudden windshift and the crops.
- [NTSB FTW99LA163](https://openairdocs.org/ntsb/FTW99LA163.md): Canadian Car & Foundry Harvard MK IV · Mckinney, TX · Accident · Minor injuries · Limited investigation · Final report · Jun 13, 1999 · N59TS · Substantial damage
  > The pilot's failure to maintain directional control on landing. Contributing factors were the elevator control restriction, the pilot's inadequate preflight, the ditch, and gusty conditions.
- [NTSB FTW99LA157](https://openairdocs.org/ntsb/FTW99LA157.md): Grumman G-164A · Monaville, TX · Accident · No injuries · Limited investigation · Final report · Jun 2, 1999 · N73PB · Substantial damage
  > The pilot's failure to touch down on the dry area of the landing strip. A factor was the soft terrain condition on the sides of the grass strip.
- [NTSB SEA99LA075](https://openairdocs.org/ntsb/SEA99LA075.md): Air Tractor AT-401 · Jerome, ID · Accident · No injuries · Limited investigation · Final report · May 27, 1999 · N6024M · Substantial damage
  > Fuel exhaustion. Carburetor contamination and rough terrain were factors.
- [NTSB SEA99LA074](https://openairdocs.org/ntsb/SEA99LA074.md): Grumman-Schweizer G-164A · Prescott, WA · Accident · No injuries · Limited investigation · Final report · May 27, 1999 · N9970 · Substantial damage
  > The pilot-in-command's failure to maintain directional control during the takeoff roll and overloading of the right landing gear strut. Contributing factors were the soft takeoff surface, confined (narrow) takeoff surface, and high vegetation.
- [NTSB MIA99LA160](https://openairdocs.org/ntsb/MIA99LA160.md): Grumman G-164A · Orlando, FL · Accident · No injuries · Limited investigation · Final report · May 25, 1999 · N711ZY · Substantial damage
  > The pilots misjudgment of altitude during an attempted banner tow pick-up. This resulted in the banner becoming entangled around the main landing gear. The pilot made a go-around. On landing rollout the banner became entangled around a runway light, and the…
- [NTSB FTW99LA134](https://openairdocs.org/ntsb/FTW99LA134.md): Grumman-Schweizer G164-B · Garwood, TX · Accident · No injuries · Limited investigation · Final report · May 8, 1999 · N6771K · Destroyed
  > The pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall. A related factor was the high density altitude.
- [NTSB LAX99LA180](https://openairdocs.org/ntsb/LAX99LA180.md): Grumman G-164A · Maxwell, CA · Accident · No injuries · Limited investigation · Final report · May 7, 1999 · N8875H · Destroyed
  > Failure of the pilot to attain and maintain the proper reference climb airspeed during the rotation and initial climb, which resulted in a stall/mush condition.
- [NTSB ANC99LA057](https://openairdocs.org/ntsb/ANC99LA057.md): de Havilland DHC-3 · Healy, AK · Accident · No injuries · Limited investigation · Final report · Apr 27, 1999 · N3125N · Substantial damage
  > The pilot's selection of an unsafe/hazardous area for landing. Factors in the accident were the presence of a tail wind, the pilot's inadequate evaluation of the wind conditions, and a narrow airstrip.
- [NTSB LAX99LA158](https://openairdocs.org/ntsb/LAX99LA158.md): North American AT-6D · Hollister, CA · Accident · No injuries · Limited investigation · Final report · Apr 18, 1999 · N6979C · Substantial damage
  > The pilot's inadequate compensation for the crosswind condition, and his failure to maintain directional control during landing.
- [NTSB FTW99LA097](https://openairdocs.org/ntsb/FTW99LA097.md): Aero Commander S2R · Hobart, OK · Accident · Minor injuries · Limited investigation · Final report · Mar 19, 1999 · N5647X · Destroyed
  > The loss of engine power due to an undetermined reason. A factor was the ditch.
- [NTSB ATL99LA051](https://openairdocs.org/ntsb/ATL99LA051.md): Air Tractor 301 · Finley, TN · Accident · No injuries · Limited investigation · Final report · Mar 12, 1999 · N36484 · Substantial damage
  > The pilot's inadequate compensation for wind and his failure to maintain directional control. A factor was the gusting winds.

## 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") = 1999
  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=1999

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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.