# NTSB investigations: Pratt & Whitney R1340 series, 2014

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 WPR15LA023](https://openairdocs.org/ntsb/WPR15LA023.md): Air Tractor AT 301 · Basin City, WA · Accident · No injuries · Limited investigation · Final report · Oct 27, 2014 · N8878S · Substantial damage
  > Maintenance personnel’s and the airplane owner’s failure to inspect the engine for cracks in the cylinders as required by an airworthiness directive, which resulted in the loss of engine power during low-altitude maneuvering flight.
- [NTSB ERA15LA030](https://openairdocs.org/ntsb/ERA15LA030.md): North American T 6G · Naples, FL · Accident · No injuries · Limited investigation · Final report · Oct 23, 2014 · N22NA · Substantial damage
  > The total loss of engine power during the initial climb due to fuel starvation for reasons that could not be determined because postaccident examinations of the airframe and engine fuel system components revealed no evidence of a mechanical malfunction or…
- [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 CEN14LA439](https://openairdocs.org/ntsb/CEN14LA439.md): Air Tractor AT-401 · Wray, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 19, 2014 · N4542W · Substantial damage
  > A loss of the No. 1 cylinder’s compression due to a stuck exhaust valve caused by a lack of sufficient valve clearance, which resulted in a loss of engine power and a forced landing. Contributing to the loss of engine power were the worn intake and exhaust…
- [NTSB CEN14CA442](https://openairdocs.org/ntsb/CEN14CA442.md): Rockwell International S 2R · Kerkhoven, MN · Accident · No injuries · Data collection · Final report · Aug 19, 2014 · N9646A · Substantial damage
  > The pilot failure to see and avoid the guide wire during the aerial application flight.
- [NTSB ERA14CA394](https://openairdocs.org/ntsb/ERA14CA394.md): North American SNJ-6 · Readington, NJ · Accident · No injuries · Data collection · Final report · Aug 16, 2014 · N211A · Substantial damage
  > The pilot's failure to maintain aircraft control during landing which resulted in an aircraft nose-over.
- [NTSB CEN14CA427](https://openairdocs.org/ntsb/CEN14CA427.md): Air Tractor AT 401B · Cimarron, KS · Accident · Serious injuries · Data collection · Final report · Aug 13, 2014 · N9071Z · Substantial damage
  > The pilot's failure to maintain clearance from the antenna guy wire during an aerial application pass.
- [NTSB WPR14LA322](https://openairdocs.org/ntsb/WPR14LA322.md): Schweizer G 164B · Tulelake, CA · Accident · 1 fatal · Limited investigation · Final report · Aug 1, 2014 · N3627R · Destroyed
  > The pilot's failure to maintain clearance from power lines while maneuvering during low-altitude operations.
- [NTSB CEN14LA301](https://openairdocs.org/ntsb/CEN14LA301.md): Grumman Acft ENG Cor-Schweizer G-164B · Lake City, AR · Accident · No injuries · Limited investigation · Final report · Jun 18, 2014 · N993QC · Substantial damage
  > The partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB CEN14LA287](https://openairdocs.org/ntsb/CEN14LA287.md): Air Tractor AT 301 · Pearsall, TX · Accident · No injuries · Limited investigation · Final report · Jun 12, 2014 · N8593S · Substantial damage
  > The failure of the No. 1 cylinder rod at the link pin. Contributing to the accident was oil starvation to the rod bearing due to the improper flushing of the oil cooler, which allowed metal and other debris in the oil to clog the drain and the led to the…
- [NTSB CEN14LA284](https://openairdocs.org/ntsb/CEN14LA284.md): Air Tractor AT-301 · Winner, SD · Accident · No injuries · Limited investigation · Final report · Jun 11, 2014 · N8564S · Substantial damage
  > The pilot's improper decision to attempt a takeoff with a tailwind and his failure to achieve the proper airspeed for liftoff, which resulted in the airplane exceeding its critical angle of attack and entering an aerodynamic stall shortly after liftoff.
- [NTSB ANC14LA035](https://openairdocs.org/ntsb/ANC14LA035.md): Dehavilland DHC-3T · Homer, AK · Accident · No injuries · Limited investigation · Final report · May 30, 2014 · N3125N · Substantial damage
  > The flutter failure of the right elevator servo tab due to the improper fabrication of the servo tab and maintenance personnel’s subsequent failure to detect anomalies with the servo tab.
- [NTSB WPR14LA198](https://openairdocs.org/ntsb/WPR14LA198.md): Rockwell International S 2R · Medicine Lake, MT · Accident · No injuries · Limited investigation · Final report · May 21, 2014 · N702CB · Substantial damage
  > The pilot’s failure to maintain airplane control and sufficient altitude to clear terrain during a low-altitude maneuver.
- [NTSB CEN14CA246](https://openairdocs.org/ntsb/CEN14CA246.md): North American SNJ 6 · Santa Fe, NM · Accident · No injuries · Data collection · Final report · May 18, 2014 · N5485V · Substantial damage
  > The pilot's loss of directional control during landing and subsequent go around attempt.
- [NTSB WPR14LA201](https://openairdocs.org/ntsb/WPR14LA201.md): Schweizer G 164B · Biggs, CA · Accident · No injuries · Limited investigation · Final report · May 13, 2014 · N3633C · Substantial damage
  > The assembler’s improper fabrication of a fuel line (hose) and the subsequent failure to verify that it was not occluded, which resulted in fuel starvation and a total loss of engine power 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.

## 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") = 2014
  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=2014

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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.