# NTSB investigations: 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 16 of 35 · 1,712 cases

## Cases, newest first

- [NTSB GAA22WA158](https://openairdocs.org/ntsb/GAA22WA158.md): Monnett Sonerai · Jyväskylä, Finland · Accident · No injuries · Class 5 · Foreign · Apr 17, 2022 · OH-XMA · Destroyed
- [NTSB ENG22WA019](https://openairdocs.org/ntsb/ENG22WA019.md): Sikorsky S92 · Jeju Island, South Korea · Accident · 3 fatal · Class 5 · Foreign · Apr 8, 2022 · B519
- [NTSB GAA22WA148](https://openairdocs.org/ntsb/GAA22WA148.md): Vans RV10 · Chubut, Argentina · Accident · 3 fatal · Class 5 · Foreign · Apr 6, 2022 · PP-ZRT
- [NTSB GAA22WA147](https://openairdocs.org/ntsb/GAA22WA147.md): Hughes 369 · Port McNeil, Canada · Accident · 1 fatal · Class 4 · Foreign · Apr 6, 2022 · C-GJLC · Substantial damage
- [NTSB WPR22LA142](https://openairdocs.org/ntsb/WPR22LA142.md): Barber Robert L Sonerai II L · Jean, NV · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 3, 2022 · N333BM · Substantial damage
  > A reported loss of engine power for undetermined reasons.
- [NTSB GAA22WA137](https://openairdocs.org/ntsb/GAA22WA137.md): Beech C90A · Temixco, Mexico · Accident · 3 fatal · Class 5 · Foreign · Mar 30, 2022 · N426EM · Substantial damage
- [NTSB GAA22WA138](https://openairdocs.org/ntsb/GAA22WA138.md): Sachse Stephan Aventura II · Klekot, Poland · Accident · 1 fatal · Class 5 · Foreign · Mar 29, 2022 · N27ZX · Substantial damage
- [NTSB ERA22LA168](https://openairdocs.org/ntsb/ERA22LA168.md): Robinson Helicopter R44 · Myrtle Beach, SC · Accident · No injuries · Class 3 · Limited · Final report · Mar 26, 2022 · N288L · Substantial damage
  > Vibration in the airframe and flight controls for reasons that could not be determined based on the available evidence.
- [NTSB CEN22LA152](https://openairdocs.org/ntsb/CEN22LA152.md): Bellanca 17-30A · Ash Flat, AR · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 25, 2022 · N8869V · Substantial damage
  > The partial loss of engine power during a go-around resulting in an inadvertent entry into an aerodynamic stall. Contributing to the accident was the inexperience of the low-time pilot.
- [NTSB WPR22LA127](https://openairdocs.org/ntsb/WPR22LA127.md): Piper PA-32R-300 · St. George, UT · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 24, 2022 · N111NW · Substantial damage
  > The total loss of engine power for undetermined reasons.
- [NTSB CEN22LA156](https://openairdocs.org/ntsb/CEN22LA156.md): Cessna 172N · Springtown, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 24, 2022 · N733KP · Substantial damage
  > A total loss of engine power for reasons that could not be determined.
- [NTSB GAA22WA128](https://openairdocs.org/ntsb/GAA22WA128.md): Cessna 172RG · Brantford, Canada · Accident · 1 fatal · Class 5 · Foreign · Mar 21, 2022 · C-GOFD · Substantial damage
- [NTSB DCA22WA102](https://openairdocs.org/ntsb/DCA22WA102.md): Boeing 737 · Wuzhou, China · Accident · 132 fatal · Class 5 · Foreign · Mar 21, 2022 · B-1791 · Destroyed
- [NTSB ERA22LA162](https://openairdocs.org/ntsb/ERA22LA162.md): Czech Sport Piper Sport · Homestead, FL · Accident · 1 fatal · Class 3 · Limited · Final report · Mar 17, 2022 · N811PS · Substantial damage
  > The airplane’s collision with water for underdetermined reasons.
- [NTSB GAA22WA120](https://openairdocs.org/ntsb/GAA22WA120.md): Beech A36 · Ie, Japan · Accident · 2 fatal · Class 5 · Foreign · Mar 12, 2022 · JA4577 · Substantial damage
- [NTSB CEN22LA137](https://openairdocs.org/ntsb/CEN22LA137.md): Cessna P210N · Englewood, CO · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 8, 2022 · N210GE · Destroyed
  > A total loss of engine power on short final for reasons that could not be determined based on the available evidence.
- [NTSB ANC22LA020](https://openairdocs.org/ntsb/ANC22LA020.md): Piper PA-18-135 · Wasilla, AK · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 27, 2022 · N99640 · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB CEN22LA121](https://openairdocs.org/ntsb/CEN22LA121.md): Piper PA22 · Furlow, AR · Accident · Serious injuries · Class 3 · Limited · Final report · Feb 14, 2022 · N7337D · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB DCA22WA119](https://openairdocs.org/ntsb/DCA22WA119.md): Airbus A320 · Pointe-a-Pitre, Guadeloupe · Incident · Class 5 · Foreign · Feb 10, 2022 · F-HEPB · No damage
- [NTSB WPR22LA099](https://openairdocs.org/ntsb/WPR22LA099.md): Aeronca 11AC · Napa, CA · Accident · No injuries · Class 3 · Limited · Final report · Feb 8, 2022 · N9500E · Substantial damage
  > The loss of engine power for undetermined reasons, which resulted in an off-airport landing on unimproved terrain.
- [NTSB GAA22WA099](https://openairdocs.org/ntsb/GAA22WA099.md): Hughes 369HS · Panama City, Panama · Incident · No injuries · Class 5 · Foreign · Feb 7, 2022 · N9113Q · Minor damage
- [NTSB CEN22LA115](https://openairdocs.org/ntsb/CEN22LA115.md): Piper PA-28R-201 · Olathe, KS · Accident · No injuries · Class 3 · Limited · Final report · Feb 4, 2022 · N5145W · Substantial damage
  > The total loss of engine power for undetermined reasons.
- [NTSB GAA22WA105](https://openairdocs.org/ntsb/GAA22WA105.md): Cessna 172N · Reykjavik, Iceland · Accident · Class 5 · Foreign · Feb 3, 2022 · TF-ABB · Substantial damage
- [NTSB ENG22WA008](https://openairdocs.org/ntsb/ENG22WA008.md): Boeing 737 · Brazzaville, Congo - Kinshasa · Incident · Class 5 · Foreign · Feb 3, 2022 · TN-AJY
- [NTSB CEN22FA111](https://openairdocs.org/ntsb/CEN22FA111.md): Cirrus Design SR22 · Hutchinson, MN · Accident · 1 fatal · Class 3 · Field · Final report · Jan 31, 2022 · N227BD · Substantial damage
  > The reduction in fuel flow and subsequent partial loss of engine power after takeoff for reasons that could not be determined.
- [NTSB GAA22WA096](https://openairdocs.org/ntsb/GAA22WA096.md): Vans RV-6A · Ciudad-Chihuahua state, Mexico · Accident · 2 fatal · Class 5 · Foreign · Jan 23, 2022 · XB-JXK · Substantial damage
- [NTSB GAA22WA086](https://openairdocs.org/ntsb/GAA22WA086.md): Air Tractor AT602 · Luís Eduardo Magalhães,, Brazil · Accident · Class 5 · Foreign · Jan 20, 2022 · PS-RAF · Substantial damage
- [NTSB CEN22LA103](https://openairdocs.org/ntsb/CEN22LA103.md): Cessna 120 · Sturtevant, WI · Accident · Serious injuries · Class 3 · Limited · Final report · Jan 18, 2022 · N90129 · Substantial damage
  > The pilot’s loss of directional control during the takeoff for reasons that could not be determined based on the available evidence, which resulted in a runway excursion.
- [NTSB ANC22LA014](https://openairdocs.org/ntsb/ANC22LA014.md): Bell 205A-1 · El Cajon, CA · Accident · No injuries · Class 3 · Limited · Final report · Jan 15, 2022 · N502HQ · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB ERA22FA105](https://openairdocs.org/ntsb/ERA22FA105.md): Eurocopter Deutschland EC135 P2+ · Drexel Hill, PA · Accident · Serious injuries · Class 3 · Field · Final report · Jan 11, 2022 · N531LN · Substantial damage
  > An inflight attitude upset for undetermined reasons that resulted in a rotor system overspeed, a reduction of power from both engines, and a subsequent hard landing.
- [NTSB GAA22WA069](https://openairdocs.org/ntsb/GAA22WA069.md): Robinson R44 · 63 Puy-de-Dome, France · Accident · 2 fatal · Class 5 · Foreign · Jan 6, 2022 · F-HARY · Destroyed
- [NTSB GAA22WA072](https://openairdocs.org/ntsb/GAA22WA072.md): Robinson R22 · Karamea, New Zealand · Accident · Class 5 · Foreign · Jan 2, 2022 · ZK-HEQ · Substantial damage
- [NTSB CEN22LA093](https://openairdocs.org/ntsb/CEN22LA093.md): Zenith CH750 · Montrose, CO · Accident · No injuries · Class 3 · Limited · Final report · Jan 2, 2022 · N750DP · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB ERA22LA099](https://openairdocs.org/ntsb/ERA22LA099.md): Mooney M20C · Southeast Arcadia, FL · Accident · Minor injuries · Class 3 · Limited · Final report · Jan 1, 2022 · N79396 · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on the available evidence for this investigation.
- [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.

Next page: https://openairdocs.org/ntsb-events/000/sequence.md?page=17

## 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 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?page=16

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