# NTSB investigations: Pratt & Whitney R1340 series, 2021

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 WPR22FA026](https://openairdocs.org/ntsb/WPR22FA026.md): Ayres S-2R · Shafter, CA · Accident · 1 fatal · Class 3 · Field · Final report · Nov 3, 2021 · N8960Q · Substantial damage
  > The pilot’s decision to depart into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of airplane control.
- [NTSB ERA22LA032](https://openairdocs.org/ntsb/ERA22LA032.md): North American AT-6D · Pickens, SC · Accident · No injuries · Class 4 · Limited · Final report · Oct 24, 2021 · N3771M · Substantial damage
  > The pilot’s failure to maintain directional control during landing, resulting in a runway excursion and collision with rocky terrain.
- [NTSB CEN21LA393](https://openairdocs.org/ntsb/CEN21LA393.md): Air Tractor AT-401B · Storm Lake, IA · Accident · No injuries · Class 4 · Limited · Final report · Sep 1, 2021 · N5081W · Substantial damage
  > The pilot’s failure to maintain adequate airspeed during a landing approach with a tailwind that resulted in a landing overrun and impact with terrain.
- [NTSB ERA21FA334](https://openairdocs.org/ntsb/ERA21FA334.md): North American SNJ-2 · Wilkes-Barre, PA · Accident · 1 fatal · Class 3 · Field · Final report · Aug 20, 2021 · N52900 · Destroyed
  > A partial loss of engine power for undetermined reasons. Also causal was the pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for a forced landing following the loss of engine power, which resulted in an aerodynamic stall and…
- [NTSB CEN21FA355](https://openairdocs.org/ntsb/CEN21FA355.md): North American T-6G · Starkville, MS · Accident · 2 fatal · Class 3 · Field · Final report · Aug 4, 2021 · N7197C · Destroyed
  > The pilot’s failure to maintain clearance from trees while maneuvering at low altitude.
- [NTSB WPR21LA299](https://openairdocs.org/ntsb/WPR21LA299.md): Schweizer G-164B · Tracy, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 30, 2021 · N3629F · Substantial damage
  > A loss of thrust during a low-level agricultural application flight, which resulted in a descent and impact with terrain. The reason for the loss of thrust could not be determined based on available information.
- [NTSB CEN21LA352](https://openairdocs.org/ntsb/CEN21LA352.md): North American AT-6F · Adrian, MI · Accident · No injuries · Class 4 · Limited · Final report · Jul 28, 2021 · N6601C · Substantial damage
  > The loss of control during landing due to the out of rig condition of the tailwheel which resulted in a ground loop and impact with the runway.
- [NTSB CEN21LA319](https://openairdocs.org/ntsb/CEN21LA319.md): Air Tractor AT-401 · Carroll, IA · Accident · No injuries · Class 3 · Limited · Final report · Jul 13, 2021 · N7315P · Substantial damage
  > The wear-related failure of the airframe fuel boost pump, which resulted in fuel starvation and a loss of engine power.
- [NTSB CEN21LA237](https://openairdocs.org/ntsb/CEN21LA237.md): Grumman G164 · Celina, OH · Accident · Serious injuries · Class 3 · Limited · Final report · May 27, 2021 · N8376K · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB WPR21LA200](https://openairdocs.org/ntsb/WPR21LA200.md): Grumman Acft ENG Cor-Schweizer G-164C · Glenn, CA · Accident · Serious injuries · Class 3 · Limited · Final report · May 12, 2021 · N6596K · Substantial damage
  > The pilot’s fuel mismanagement, which resulted in fuel exhaustion, a total loss of engine power, and an off-airport hard landing.
- [NTSB CEN21LA133](https://openairdocs.org/ntsb/CEN21LA133.md): Aero Commander S2R · Alamo, TX · Accident · No injuries · Class 3 · Limited · Final report · Feb 9, 2021 · N5679X · Substantial damage
  > The partial loss of engine power due to water-contaminated fuel.

## 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") = 2021
  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=2021

---
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.