# NTSB investigations, 2021: Unknown or undetermined

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.

Page 1 of 2 · 95 cases

## Latest cases

- [NTSB CEN22LA085](https://openairdocs.org/ntsb/CEN22LA085.md): Beech A100 · West Helena, AR · Accident · No injuries · Class 3 · Limited · Final report · Dec 28, 2021 · N93GT · Substantial damage
  > The malfunction of the propeller autofeather system after takeoff for undetermined reasons, which resulted in both propellers going into feather and a hard landing.
- [NTSB GAA22WA057](https://openairdocs.org/ntsb/GAA22WA057.md): Learjet 35A · Cancun, Mexico · Accident · Class 5 · Foreign · Dec 21, 2021 · XA-VDK · Substantial damage
- [NTSB ANC22LA011](https://openairdocs.org/ntsb/ANC22LA011.md): Larry Bingham LB-1 · Haines, AK · Accident · No injuries · Class 3 · Limited · Final report · Dec 15, 2021 · N555LB · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on available information, which resulted in a precautionary landing and impact with snow.
- [NTSB WPR22LA062](https://openairdocs.org/ntsb/WPR22LA062.md): Beech K35 · Temecula, CA · Accident · No injuries · Class 3 · Limited · Final report · Dec 11, 2021 · N654HR · Substantial damage
  > The total loss of engine power for reasons that could not be determined from the available evidence.
- [NTSB GAA22WA043](https://openairdocs.org/ntsb/GAA22WA043.md): Robinson R66 · Mrassu, Russia · Accident · 1 fatal · Class 5 · Foreign · Dec 10, 2021 · RA-07397 · Substantial damage
- [NTSB GAA22WA041](https://openairdocs.org/ntsb/GAA22WA041.md): Piper PA34 · Gauteng, South Africa · Accident · Class 5 · Foreign · Dec 3, 2021 · ZS-MHG · Substantial damage
- [NTSB GAA22WA037](https://openairdocs.org/ntsb/GAA22WA037.md): Cessna A185 · Laguna Negra, Paraguay · Accident · 3 fatal · Class 5 · Foreign · Dec 3, 2021 · ZP-TOU · Destroyed
- [NTSB CEN22FA053](https://openairdocs.org/ntsb/CEN22FA053.md): Bell 206 · Perry, OK · Accident · 1 fatal · Class 3 · Field · Final report · Nov 28, 2021 · N59600 · Destroyed
  > A loss of lateral control during a hover that resulted in an impact with terrain. Based on the available evidence, the reason for the loss of lateral control could not be determined.
- [NTSB GAA22WA060](https://openairdocs.org/ntsb/GAA22WA060.md): Piper PA34 · Ubatuba, Brazil · Accident · 3 fatal · Class 4 · Foreign · Nov 26, 2021 · PP-WRS · Destroyed
- [NTSB WPR22LA064](https://openairdocs.org/ntsb/WPR22LA064.md): Beech A36 · Tooele, UT · Accident · No injuries · Class 3 · Limited · Final report · Nov 24, 2021 · N4370W · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on available evidence.
- [NTSB GAA22WA059](https://openairdocs.org/ntsb/GAA22WA059.md): Cessna A188 · Joao Pinheiro, Brazil · Accident · Class 5 · Foreign · Nov 24, 2021 · PT-FFD · Substantial damage
- [NTSB GAA22WA032](https://openairdocs.org/ntsb/GAA22WA032.md): Cessna 182 · Hope, Canada · Accident · 2 fatal · Class 5 · Foreign · Nov 16, 2021 · C-FBKJ · Substantial damage
- [NTSB WPR22LA034](https://openairdocs.org/ntsb/WPR22LA034.md): Bell OH-58A · Molalla, OR · Accident · No injuries · Class 3 · Limited · Final report · Nov 15, 2021 · N103WC · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN22LA039](https://openairdocs.org/ntsb/CEN22LA039.md): Beech A36TC · Rockport, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 15, 2021 · N1805D · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on available evidence.
- [NTSB CEN22LA038](https://openairdocs.org/ntsb/CEN22LA038.md): Piper PA-22-160 · West Union, OH · Accident · No injuries · Class 3 · Limited · Final report · Nov 15, 2021 · N3463Z · Substantial damage
  > A malfunction of the flight controls for reasons that could not be determined based on available information.
- [NTSB ERA22LA039](https://openairdocs.org/ntsb/ERA22LA039.md): Bell 47D1 · Zelienople, PA · Accident · No injuries · Class 3 · Limited · Final report · Oct 31, 2021 · N132BR · Substantial damage
  > A total loss of engine power for reasons that could not be determined.
- [NTSB ENG22WA003](https://openairdocs.org/ntsb/ENG22WA003.md): Boeing 727 · Ciudad de la Costa, Uruguay · Incident · 2 fatal · Class 5 · Foreign · Oct 31, 2021 · CX-CAR · No damage
- [NTSB GAA22WA021](https://openairdocs.org/ntsb/GAA22WA021.md): Bell 206 · Eswatini, South Africa · Accident · 1 fatal · Class 3 · Foreign · Oct 26, 2021 · V5-HOC · Destroyed
- [NTSB GAA22WA019](https://openairdocs.org/ntsb/GAA22WA019.md): Cessna 208 · Papua, Papua New Guinea · Accident · 1 fatal · Class 5 · Foreign · Oct 24, 2021 · PK-SNN · Substantial damage
- [NTSB ERA22LA029](https://openairdocs.org/ntsb/ERA22LA029.md): Cessna 172 · Westhampton Beach, NY · Accident · No injuries · Class 3 · Limited · Final report · Oct 23, 2021 · N1188L · Substantial damage
  > A total loss of engine power during cruise flight for reasons that could not be determined based on the available evidence.
- [NTSB CEN22LA012](https://openairdocs.org/ntsb/CEN22LA012.md): Stinson 108 · Wildwood, AR · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 8, 2021 · N677JD · Substantial damage
  > A total loss of engine power for reasons that could not be determined.
- [NTSB GAA22WA010](https://openairdocs.org/ntsb/GAA22WA010.md): Cessna 150 · Rio De Janeiro, Brazil · Accident · No injuries · Class 5 · Foreign · Oct 6, 2021 · PT-KLG · Substantial damage
- [NTSB GAA21WA242](https://openairdocs.org/ntsb/GAA21WA242.md): Mooney M20M · Tököl, Hungary · Accident · Class 5 · Foreign · Sep 28, 2021 · N999U · Substantial damage
- [NTSB ERA21LA384](https://openairdocs.org/ntsb/ERA21LA384.md): Cessna 150 · Hobe Sound, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Sep 28, 2021 · N4100V · Substantial damage
  > A reported loss of engine performance for reasons that could not be determined.
- [NTSB GAA21WA241](https://openairdocs.org/ntsb/GAA21WA241.md): Vans RV8 · Hyvinkää, Finland · Accident · Class 5 · Foreign · Sep 27, 2021 · OH-XRV · Substantial damage
- [NTSB GAA21WA235](https://openairdocs.org/ntsb/GAA21WA235.md): Piper PA18S · Ferme Neuve, Canada · Accident · 2 fatal · Class 5 · Foreign · Sep 24, 2021 · C-FVPZ · Substantial damage
- [NTSB WPR21LA354](https://openairdocs.org/ntsb/WPR21LA354.md): Hiller UH-12E · Bovill, ID · Accident · No injuries · Class 3 · Limited · Final report · Sep 23, 2021 · N5334V · Substantial damage
  > A loss of helicopter control for undetermined reasons based on the available evidence for this accident.
- [NTSB ANC21LA096](https://openairdocs.org/ntsb/ANC21LA096.md): Piper PA-14 · Chickaloon, AK · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 23, 2021 · N4276H · Substantial damage
  > A total loss of engine power during takeoff for reasons that could not be determined based on the available information.
- [NTSB GAA22WA020](https://openairdocs.org/ntsb/GAA22WA020.md): Bely lebed · Sovetsky, Russia · Accident · 2 fatal · Class 5 · Foreign · Sep 16, 2021 · RA-1815G · Substantial damage
- [NTSB GAA21WA231](https://openairdocs.org/ntsb/GAA21WA231.md): Mooney M20J · Sundridge, Canada · Accident · 1 fatal · Class 5 · Foreign · Sep 16, 2021 · C-FLJL
- [NTSB GAA21WA229](https://openairdocs.org/ntsb/GAA21WA229.md): Beech B200GT · Piracicaba, Brazil · Accident · 7 fatal · Class 3 · Foreign · Sep 14, 2021 · PS-CSM · Destroyed
- [NTSB GAA21WA237](https://openairdocs.org/ntsb/GAA21WA237.md): Cessna 182 · Itaituba, Brazil · Accident · 1 fatal · Class 5 · Foreign · Sep 10, 2021 · PT-JIH · Destroyed
- [NTSB GAA21WA224](https://openairdocs.org/ntsb/GAA21WA224.md): Cessna 172S · Ruckinge, Kentu, United Kingdom · Accident · Class 5 · Foreign · Sep 10, 2021 · G-CFIO · Substantial damage
- [NTSB CEN21LA414](https://openairdocs.org/ntsb/CEN21LA414.md): Cessna 172S · LaSalle, CO · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 10, 2021 · N2099J · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN21LA404](https://openairdocs.org/ntsb/CEN21LA404.md): Cessna 182 · Delta, CO · Accident · No injuries · Class 3 · Limited · Final report · Sep 3, 2021 · N9114W · Substantial damage
  > A total loss of engine power that resulted in a forced landing and subsequent noseover. The reason for the total loss of engine power could not be determined based on the available evidence.
- [NTSB CEN21LA405](https://openairdocs.org/ntsb/CEN21LA405.md): Beech A35 · Morrilton, AR · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 2, 2021 · N8419A · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on available information.
- [NTSB WPR21FA330](https://openairdocs.org/ntsb/WPR21FA330.md): Cessna TU206F · Bernard, ID · Accident · 2 fatal · Class 3 · Field · Final report · Aug 28, 2021 · N922MA · Substantial damage
  > The pilot’s decision to continue the flight into a canyon that exceeded the performance capabilities of the airplane, which resulted in an impact with trees an terrain.
- [NTSB CEN21LA390](https://openairdocs.org/ntsb/CEN21LA390.md): Mantooth Thorp T-18 · San Antonio, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 28, 2021 · N78DW · Substantial damage
  > The loss of engine power after takeoff for undetermined reasons.
- [NTSB WPR21LA326](https://openairdocs.org/ntsb/WPR21LA326.md): Piper PA-32-300 · Del Mar, CA · Accident · No injuries · Class 3 · Limited · Final report · Aug 24, 2021 · N2843T · Substantial damage
  > The partial loss of engine power for reasons that could not be determined, which resulted in a forced landing on an interstate highway and subsequent collision with vehicles.
- [NTSB GAA21WA211](https://openairdocs.org/ntsb/GAA21WA211.md): Piper PA24 · Maldonado, Uruguay · Accident · 2 fatal · Class 5 · Foreign · Aug 22, 2021 · LV-CVT
- [NTSB CEN21FA380](https://openairdocs.org/ntsb/CEN21FA380.md): Piper J3C-65 · Adrian, MO · Accident · 1 fatal · Class 3 · Field · Final report · Aug 22, 2021 · N70643 · Substantial damage
  > The pilot’s failure to maintain control of the airplane which resulted in an aerodynamic stall and impact with terrain.
- [NTSB GAA21WA209](https://openairdocs.org/ntsb/GAA21WA209.md): Acroduster II · Marcoola, Australia · Accident · 1 fatal · Class 5 · Foreign · Aug 18, 2021 · VH-YEL · Destroyed
- [NTSB GAA21WA208](https://openairdocs.org/ntsb/GAA21WA208.md): Rockwell 690 · Thunder Bay, Canada · Accident · 1 fatal · Class 5 · Foreign · Aug 17, 2021 · C-GYLD · Destroyed
- [NTSB CEN21LA372](https://openairdocs.org/ntsb/CEN21LA372.md): Flying K Enterprises Sky Raider · Augusta, KS · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 15, 2021 · N56179 · Substantial damage
  > A partial loss of engine power for reasons that could not determined based on available information.
- [NTSB CEN21LA369](https://openairdocs.org/ntsb/CEN21LA369.md): Robinson Helicopter R44 II · Wheeling, IL · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 11, 2021 · N4043B · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on available information.
- [NTSB ERA21LA322](https://openairdocs.org/ntsb/ERA21LA322.md): Diamond DA42 · Hiddenite, NC · Accident · No injuries · Class 3 · Limited · Final report · Aug 9, 2021 · N906ER · Substantial damage
  > The flight instructor’s inability to stop the descent following a practice emergency descent for reasons that could not be determined.
- [NTSB CEN21LA367](https://openairdocs.org/ntsb/CEN21LA367.md): Pulsar Sport 150 · Osceola, WI · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 9, 2021 · N997EM · Substantial damage
  > The total loss of engine power for undermined reasons based on available information
- [NTSB GAA21WA195](https://openairdocs.org/ntsb/GAA21WA195.md): Tecnam P2002 · Khabarovsk, Russia · Accident · 2 fatal · Class 5 · Foreign · Aug 4, 2021 · RA-2329G · Substantial damage
- [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 GAA21WA186](https://openairdocs.org/ntsb/GAA21WA186.md): Cessna 208 · Norderney, Germany · Accident · 1 fatal · Class 5 · Foreign · Jul 26, 2021 · D-FLEC · Substantial damage

Next page: https://openairdocs.org/ntsb-events/000/sequence.md?year=2021&page=2

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '000' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/000/sequence?year=2021

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