# 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 13 of 35 · 1,709 cases

## Cases, newest first

- [NTSB DCA23WA314](https://openairdocs.org/ntsb/DCA23WA314.md): Boeing 717 · Cambridge, Australia · Incident · No injuries · Class 5 · Foreign · Jun 6, 2023 · VH-NXM · No damage
- [NTSB ERA23FA256](https://openairdocs.org/ntsb/ERA23FA256.md): Cessna 560 · Montebello, VA · Accident · 4 fatal · Class 3 · Field · Final report · Jun 4, 2023 · N611VG · Destroyed
  > Pilot incapacitation due to loss of cabin pressure for undetermined reasons. Contributing to the accident was the pilot’s and owner/operator’s decision to operate the airplane without supplemental oxygen.
- [NTSB CEN23LA224](https://openairdocs.org/ntsb/CEN23LA224.md): Beech A36 · Oklahoma City, OK · Accident · No injuries · Class 3 · Limited · Final report · Jun 4, 2023 · N9169Q · Substantial damage
  > A loss of engine power during approach for landing for undetermined reasons.
- [NTSB ERA23FA254](https://openairdocs.org/ntsb/ERA23FA254.md): Zenith 601XL · Albertville, AL · Accident · 1 fatal · Class 3 · Field · Final report · Jun 3, 2023 · N601YP · Substantial damage
  > A descent and impact with terrain for reasons that could not be determined.
- [NTSB CEN23LA223](https://openairdocs.org/ntsb/CEN23LA223.md): Air Tractor AT-502B · Lake Village, AR · Accident · No injuries · Class 3 · Limited · Final report · Jun 3, 2023 · N509HB · Substantial damage
  > A reported loss of thrust for reasons that could not be determined.
- [NTSB WPR23LA269](https://openairdocs.org/ntsb/WPR23LA269.md): CSP Leasing MTO Sport · Gardiner, MT · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 1, 2023 · N207AG · Substantial damage
  > Failure of the rudder/nosewheel steering system for reasons that could not be determined, which resulted in loss of yaw control and a subsequent rollover.
- [NTSB ERA23LA251](https://openairdocs.org/ntsb/ERA23LA251.md): Magniflight M24 Orion Plus · Dauphin Island, AL · Accident · No injuries · Class 3 · Limited · Final report · May 30, 2023 · N1777W · Substantial damage
  > A partial loss of engine power due to a loss of combustion in the No. 4 cylinder for undetermined reasons.
- [NTSB CEN23LA221](https://openairdocs.org/ntsb/CEN23LA221.md): Quad City Challenger · Doniphan, MO · Accident · No injuries · Class 3 · Limited · Final report · May 28, 2023 · N265JW · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB WPR23LA198](https://openairdocs.org/ntsb/WPR23LA198.md): Silvaire Luscombe 8A · Clovis, NM · Accident · Minor injuries · Class 3 · Limited · Final report · May 20, 2023 · N71983 · Substantial damage
  > The airplane’s uncontrollable descent and forced landing for reasons that could not be determined.
- [NTSB GAA23WA153](https://openairdocs.org/ntsb/GAA23WA153.md): Avions Robin DR400 · Les Ponts-de-Martel, Switzerland · Accident · 3 fatal · Class 5 · Foreign · May 20, 2023 · HB-EQD · Destroyed
- [NTSB GAA23WA152](https://openairdocs.org/ntsb/GAA23WA152.md): Cirrus SR20 · Mali Makovnik, Croatia · Accident · 3 fatal · Class 5 · Foreign · May 20, 2023 · PH-YMC · Destroyed
- [NTSB ERA23LA241](https://openairdocs.org/ntsb/ERA23LA241.md): Burril Benjamin D BDB001 · Wadesboro, NC · Accident · Minor injuries · Class 3 · Limited · Final report · May 17, 2023 · N191CK · Substantial damage
  > A reported total loss of engine power and a subsequent forced landing for reasons that could not be determined because the pilot did not make the wreckage available for examination.
- [NTSB ENG23WA028](https://openairdocs.org/ntsb/ENG23WA028.md): Learjet 35 · Hohn, Germany · Accident · Class 5 · Foreign · May 15, 2023 · D-CGFQ · Destroyed
- [NTSB WPR23FA185](https://openairdocs.org/ntsb/WPR23FA185.md): Gates Lear Jet 36A · San Clemente Island, CA · Accident · 3 fatal · Class 3 · Field · Final report · May 10, 2023 · N56PA · Destroyed
  > The pilots’ loss of airplane control following a catastrophic fire that started on the left side of the aft equipment bay (tail cone). The fire likely initiated from a leak from the left fuel motive flow line due to a b-nut that loosened for reasons that…
- [NTSB GAA23WA147](https://openairdocs.org/ntsb/GAA23WA147.md): Cessna 182 · Shell, Ecuador · Accident · 2 fatal · Class 5 · Foreign · May 8, 2023 · HC-CJL · Substantial damage
- [NTSB GAA23WA146](https://openairdocs.org/ntsb/GAA23WA146.md): Engineering & Research 415-C · St. Mary, Jamaica · Accident · 2 fatal · Class 5 · Foreign · May 5, 2023 · N3254B · Substantial damage
- [NTSB CEN23LA169](https://openairdocs.org/ntsb/CEN23LA169.md): Zenith Stol CH750 · Udall, KS · Accident · No injuries · Class 3 · Limited · Final report · May 3, 2023 · N750TK · Substantial damage
  > The pilot’s failure to maintain clearance from power lines. Contributing to the accident was the reported loss of engine power for reasons that could not be determined.
- [NTSB GAA23WA143](https://openairdocs.org/ntsb/GAA23WA143.md): Robinson R-44 · Shanxi, China · Accident · 3 fatal · Class 5 · Foreign · May 2, 2023 · B-70YA · Substantial damage
- [NTSB GAA23WA145](https://openairdocs.org/ntsb/GAA23WA145.md): Cirrus SR22 · Joanopolis, Brazil · Accident · No injuries · Class 5 · Foreign · Apr 28, 2023 · PR-DSC · Substantial damage
- [NTSB GAA23WA133](https://openairdocs.org/ntsb/GAA23WA133.md): Piper PA32 · Isla Mocha, Chile · Accident · 4 fatal · Class 5 · Foreign · Apr 23, 2023 · CC-PFC · Substantial damage
- [NTSB ERA23LA205](https://openairdocs.org/ntsb/ERA23LA205.md): Schweizer 269C · Springfield, TN · Accident · No injuries · Class 3 · Limited · Final report · Apr 22, 2023 · N789LH · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB GAA23WA135](https://openairdocs.org/ntsb/GAA23WA135.md): Cessna 150 · St-Rémi-de-Laprairie, France · Accident · Class 5 · Foreign · Apr 21, 2023 · C-FWGF · Destroyed
- [NTSB WPR23LA162](https://openairdocs.org/ntsb/WPR23LA162.md): Cessna R182 · Grand Canyon, AZ · Accident · No injuries · Class 3 · Limited · Final report · Apr 19, 2023 · N4166C · Substantial damage
  > The airplane’s loss of engine power for undetermined reasons and the pilot’s exceedance of the airplane’s critical angle of attack and subsequent failure to maintain adequate airspeed, which resulted in an aerodynamic stall.
- [NTSB WPR23FA153](https://openairdocs.org/ntsb/WPR23FA153.md): Mullins David J JR Glastar · Cal-Nev-Ari, NV · Accident · 2 fatal · Class 3 · Field · Final report · Apr 11, 2023 · N8488 · Substantial damage
  > The pilot's failure to maintain sufficient altitude for undetermined reasons while maneuvering to land in dark night conditions, which resulted in collision with terrain.
- [NTSB ERA23LA190](https://openairdocs.org/ntsb/ERA23LA190.md): Cessna 172H · Charles Town, WV · Accident · No injuries · Class 3 · Limited · Final report · Apr 11, 2023 · N2554L · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB GAA23WA120](https://openairdocs.org/ntsb/GAA23WA120.md): Piper PA28 · Prosperpine, Australia · Accident · 2 fatal · Class 5 · Foreign · Apr 2, 2023 · VH-PXR · Destroyed
- [NTSB CEN23LA145](https://openairdocs.org/ntsb/CEN23LA145.md): Piper PA32 · Lincoln, IL · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 30, 2023 · N56793 · Substantial damage
  > A total loss of engine power during an approach for landing for undetermined reasons.
- [NTSB CEN23FA144](https://openairdocs.org/ntsb/CEN23FA144.md): Zenith Stol CH701 · Oxford, MS · Accident · 1 fatal · Class 3 · Field · Final report · Mar 29, 2023 · N43414 · Destroyed
  > An in-flight collision with trees and terrain for undetermined reasons.
- [NTSB GAA23WA100](https://openairdocs.org/ntsb/GAA23WA100.md): Diamond DA40 · Gondia, India · Accident · 2 fatal · Class 5 · Foreign · Mar 18, 2023 · VT-FGL · Destroyed
- [NTSB ERA23LA156](https://openairdocs.org/ntsb/ERA23LA156.md): Beech V35 · Shoreham, NY · Accident · No injuries · Class 3 · Limited · Final report · Mar 17, 2023 · N5616S · Substantial damage
  > A total loss of engine power for unknown reasons.
- [NTSB ANC23LA027](https://openairdocs.org/ntsb/ANC23LA027.md): Cessna 182R · Minto, AK · Accident · No injuries · Class 3 · Limited · Final report · Mar 17, 2023 · N6266E · Substantial damage
  > A total loss of engine power for reasons that could not be determined.
- [NTSB GAA23WA093](https://openairdocs.org/ntsb/GAA23WA093.md): Robinson 44 · Boro Area, Okavango Delta, Botswana · Accident · 1 fatal · Class 5 · Foreign · Mar 12, 2023 · A2-HEX · Destroyed
- [NTSB WPR23LA134](https://openairdocs.org/ntsb/WPR23LA134.md): Harris Robert W Zenith CH 801 · Brigham City, UT · Accident · No injuries · Class 3 · Limited · Final report · Mar 11, 2023 · N639BH · Substantial damage
  > The pilot’s improper flare, which resulted in a hard landing following a reported loss of engine thrust for undetermined reasons.
- [NTSB ERA23LA148](https://openairdocs.org/ntsb/ERA23LA148.md): Velocity Velocity SE · Bahia Key, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 11, 2023 · N343BD · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB DCA23WA225](https://openairdocs.org/ntsb/DCA23WA225.md): Boeing 737 · Nuremberg, Germany · Incident · No injuries · Class 5 · Foreign · Mar 11, 2023 · PH-BGF · No damage
- [NTSB WPR23FA143](https://openairdocs.org/ntsb/WPR23FA143.md): Cessna T182T · Queets, WA · Accident · 1 fatal · Class 3 · Field · Final report · Mar 7, 2023 · N24289 · Destroyed
  > The pilot’s failure to maintain clearance from terrain for undetermined reasons.
- [NTSB WPR23LA121](https://openairdocs.org/ntsb/WPR23LA121.md): Piper PA-28-180 · San Andreas, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 3, 2023 · N9375J · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN23LA136](https://openairdocs.org/ntsb/CEN23LA136.md): Cessna 150F · Hillsboro, TX · Accident · Class 4 · Limited · Final report · Mar 1, 2023 · N3090X · Substantial damage
  > Substantial damage for reasons undetermined based on the available evidence.
- [NTSB GAA23WA087](https://openairdocs.org/ntsb/GAA23WA087.md): Cessna 208 · Nakina, Canada · Accident · 2 fatal · Class 5 · Foreign · Feb 28, 2023 · C-GMVB · Destroyed
- [NTSB ERA23LA133](https://openairdocs.org/ntsb/ERA23LA133.md): Piper PA-12 · Ebeemee Township, ME · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 25, 2023 · N4433M · Substantial damage
  > A partial power loss of engine power during initial climb for undetermined reasons.
- [NTSB ERA23FA130](https://openairdocs.org/ntsb/ERA23FA130.md): Cirrus Design SR22 · Duluth, MN · Accident · 1 fatal · Class 3 · Field · Final report · Feb 24, 2023 · N929DR · Destroyed
  > A rapid descent and subsequent collision with terrain for reasons that could not be determined based on the available evidence.
- [NTSB GAA23WA081](https://openairdocs.org/ntsb/GAA23WA081.md): Beech 1900 · Winnipeg, Canada · Accident · Class 5 · Foreign · Feb 23, 2023 · C-FJXO · Substantial damage
- [NTSB CEN23FA113](https://openairdocs.org/ntsb/CEN23FA113.md): Beech B200 · Little Rock, AR · Accident · 5 fatal · Class 3 · Field · Final report · Feb 22, 2023 · N55PC · Destroyed
  > The loss of control during initial climb for undetermined reasons. Contributing to the accident were the sudden wind shifts during the initial climb.
- [NTSB CEN23LA114](https://openairdocs.org/ntsb/CEN23LA114.md): Cessna 150 · Venus, TX · Accident · No injuries · Class 3 · Limited · Final report · Feb 18, 2023 · N6536G · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB GAA23WA082](https://openairdocs.org/ntsb/GAA23WA082.md): Robinson 44 · Xian, China · Accident · 1 fatal · Class 5 · Foreign · Feb 17, 2023 · B-7683 · Substantial damage
- [NTSB GAA23WA073](https://openairdocs.org/ntsb/GAA23WA073.md): Cessna 340 · Mount Mayon, Philippines · Accident · Class 5 · Foreign · Feb 17, 2023 · RP-C2080 · Destroyed
- [NTSB ANC23LA023](https://openairdocs.org/ntsb/ANC23LA023.md): Cessna P337H · Kona, HI · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 14, 2023 · N5KR · Substantial damage
  > The failure of the pilot to recognize that the rear engine was not operating during takeoff, which resulted in an attempted single-engine takeoff and the airplane’s subsequent descent and impact with terrain. Contributing to the accident was a loss of rear…
- [NTSB CEN23LA106](https://openairdocs.org/ntsb/CEN23LA106.md): Jabiru USA Sport J250-SP · Cortland, IL · Accident · No injuries · Class 3 · Limited · Final report · Feb 11, 2023 · N592J · Substantial damage
  > A total loss of engine power for reasons that could not be determined.
- [NTSB GAA23WA099](https://openairdocs.org/ntsb/GAA23WA099.md): Cessna 208B · Puente de Ixtla, Mexico · Accident · No injuries · Class 5 · Foreign · Feb 10, 2023 · N9634B · Substantial damage
- [NTSB WPR23LA107](https://openairdocs.org/ntsb/WPR23LA107.md): Bell OH-58A · Yuma, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 7, 2023 · N36FA · 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=14

## 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=13

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