# 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 19 of 35 · 1,712 cases

## Cases, newest first

- [NTSB CEN20LA392](https://openairdocs.org/ntsb/CEN20LA392.md): Cessna 172 · Cottage Grove, MN · Accident · 3 fatal · Class 3 · Limited · Final report · Sep 13, 2020 · N8488L · Destroyed
  > A steep descent and impact with terrain for reasons that could not be determined based on the available information.
- [NTSB WPR20CA298](https://openairdocs.org/ntsb/WPR20CA298.md): Cessna 208 · Whitmore, AZ · Accident · No injuries · Class 4 · Data collection · Final report · Sep 7, 2020 · N186GC · Substantial damage
  > A loss of directional control during landing due to a flat main landing gear tire, which resulted in a lateral runway excursion and impact with terrain.
- [NTSB CEN20LA380](https://openairdocs.org/ntsb/CEN20LA380.md): Beech 35 · Canyon Lake, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Sep 7, 2020 · N4636D · Substantial damage
  > The total loss of engine power for a reason that could not be determined based on available information.
- [NTSB WPR20WA294](https://openairdocs.org/ntsb/WPR20WA294.md): Bell 206 · Lago, Nigeria · Accident · No injuries · Foreign investigation · Aug 28, 2020 · 5N-BQW · Destroyed
  > The government of Nigeria has notified the NTSB of an accident involving a BELL 206 helicopter that occurred on August 28, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Nigeria's investigation under the provisions…
- [NTSB ERA20LA302](https://openairdocs.org/ntsb/ERA20LA302.md): Piper PA28R · Fletcher, NC · Accident · No injuries · Class 3 · Limited · Final report · Aug 27, 2020 · N9341N · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on available evidence.
- [NTSB CEN20WA435](https://openairdocs.org/ntsb/CEN20WA435.md): Schleicher ASH25 · Gloucestershire, United Kingdom · Accident · 2 fatal · Class 4 · Foreign · Aug 26, 2020 · G-CFST · Substantial damage
- [NTSB ANC20LA083](https://openairdocs.org/ntsb/ANC20LA083.md): Eurocopter AS350 · Ninilchik, AK · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 25, 2020 · N160SH · Substantial damage
  > A loss of engine power for an undetermined reason.
- [NTSB GAA20WA141](https://openairdocs.org/ntsb/GAA20WA141.md): Robinson R44 · Gulf of Glyfada, Greece · Incident · Class 5 · Foreign · Aug 24, 2020 · N115VC · Minor damage
- [NTSB CEN20LA352](https://openairdocs.org/ntsb/CEN20LA352.md): Beech 200 · Rockford, IL · Accident · 1 fatal · Class 3 · Limited · Final report · Aug 20, 2020 · N198DM · Destroyed
  > The pilot’s failure to maintain airplane control following a reduction of thrust in the left engine during takeoff. The reason for the reduction in thrust could not be determined based on the available evidence.
- [NTSB CEN20LA342](https://openairdocs.org/ntsb/CEN20LA342.md): Siebel Auriga · Rockford, IL · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 14, 2020 · N505JS · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on available information.
- [NTSB CEN20LA328](https://openairdocs.org/ntsb/CEN20LA328.md): Bell 206 · Marathon, TX · Accident · 3 fatal · Class 3 · Limited · Final report · Aug 8, 2020 · N284S · Destroyed
  > The in-flight loss of helicopter control for reasons that could not be determined based on the available evidence.
- [NTSB DCA20WA136](https://openairdocs.org/ntsb/DCA20WA136.md): Boeing 737 · Kozhikode, India · Accident · No injuries · Foreign investigation · Aug 7, 2020 · VT-AXH · Destroyed
  > The Air Accident Investigation Bureau (AAIB) of India has notified the NTSB of an accident involving a BOEING 737 airplane that occurred on August 07, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the AAIB of India's investigation…
- [NTSB ANC20WA079](https://openairdocs.org/ntsb/ANC20WA079.md): Cessna 172 · Valdau, Russia · Accident · No injuries · Foreign investigation · Aug 2, 2020 · RA-67551
  > The government of Russia has notified the NTSB of an accident involving a CESSNA 172 airplane that occurred on August 02, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Russia's investigation under the provisions of…
- [NTSB CEN20WA319](https://openairdocs.org/ntsb/CEN20WA319.md): Rans S12 · Sergio Perez de Leon, Mexico · Accident · No injuries · Foreign investigation · Jul 29, 2020 · Unknown · Substantial damage
  > The government of Mexico has notified the NTSB of an accident involving a RANS S12 airplane that occurred on July 29, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Mexico's investigation under the provisions of ICAO…
- [NTSB ANC20WA073](https://openairdocs.org/ntsb/ANC20WA073.md): Cessna 140 · Abbotsford, Canada · Accident · 1 fatal · Foreign investigation · Jul 28, 2020 · C-GOFK
  > The government of Canada has notified the NTSB of an accident involving a CESSNA 140 airplane that occurred on July 28, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Canada's investigation under the provisions of…
- [NTSB GAA20WA148](https://openairdocs.org/ntsb/GAA20WA148.md): Parachute Icarus Crossfire 2 · Juta, Hungary · Accident · 1 fatal · Class 4 · Foreign · Jul 19, 2020 · UNREG · Substantial damage
- [NTSB WPR20LA225](https://openairdocs.org/ntsb/WPR20LA225.md): Vans RV 8 · Grimes, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 17, 2020 · N508CM · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because the airplane was not examined.
- [NTSB WPR20WA242](https://openairdocs.org/ntsb/WPR20WA242.md): MD Helicopter 600 · Windhoek, Namibia · Accident · Serious injuries · Class 5 · Foreign · Jul 16, 2020 · V5-HVD · Destroyed
- [NTSB CEN20LA278](https://openairdocs.org/ntsb/CEN20LA278.md): Grumman G164 · Springfield, CO · Accident · 1 fatal · Class 3 · Limited · Final report · Jul 10, 2020 · N6917K · Destroyed
  > The pilot’s loss of visibility in the cockpit due to foam created by the chemicals loaded in the hopper, which resulted in collision with terrain. Contributing to the accident was the combining of chemicals known to produce foam and the pilot’s failure to…
- [NTSB CEN20LA267](https://openairdocs.org/ntsb/CEN20LA267.md): Titan Tornado · Mankato, KS · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 6, 2020 · N900WH · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on available information.
- [NTSB CEN20LA266](https://openairdocs.org/ntsb/CEN20LA266.md): Lancair ES-P · Pauls Valley, OK · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 6, 2020 · N444TW · Destroyed
  > The reason for this accident could not be determined based on the available information.
- [NTSB CEN20LA287](https://openairdocs.org/ntsb/CEN20LA287.md): Air Tractor AT 602 · Des Arc, AR · Accident · No injuries · Class 3 · Limited · Final report · Jul 3, 2020 · N8506E · Substantial damage
  > A total loss of engine power for reasons that could not be determined from all available evidence.
- [NTSB CEN20LA269](https://openairdocs.org/ntsb/CEN20LA269.md): Air Tractor AT 602 · Weldon, AR · Accident · No injuries · Class 3 · Limited · Final report · Jul 3, 2020 · N602NY · Substantial damage
  > The total loss of engine power during cruise flight for reasons that could not be determined based on the available evidence.
- [NTSB WPR20LA201](https://openairdocs.org/ntsb/WPR20LA201.md): Avia Stroitel AC-5M · Bend, OR · Accident · 1 fatal · Class 3 · Limited · Final report · Jun 30, 2020 · N263R · Destroyed
  > A loss of control just after takeoff for reasons that could not be determined based on the available information.
- [NTSB WPR20LA191](https://openairdocs.org/ntsb/WPR20LA191.md): Enstrom 280 · Hayden, ID · Accident · 1 fatal · Class 3 · Limited · Final report · Jun 24, 2020 · N280MM · Destroyed
  > The total loss of power while maneuvering at low altitude due to the detonation of two engine cylinders and damaged spark plugs.
- [NTSB CEN20WA246](https://openairdocs.org/ntsb/CEN20WA246.md): Bell 407 · Long Marston, United Kingdom · Accident · No injuries · Foreign investigation · Jun 24, 2020 · N120HH · Destroyed
  > The government of the United Kingdom has notified the NTSB of an accident involving a Bell 407 helicopter that occurred on June 24, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of the United Kingdom's investigation…
- [NTSB WPR20LA190](https://openairdocs.org/ntsb/WPR20LA190.md): Schweizer 269C · North Las Vegas, NV · Accident · No injuries · Class 3 · Limited · Final report · Jun 23, 2020 · N202CC · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB ENG20WA037](https://openairdocs.org/ntsb/ENG20WA037.md): Airbus A320 · Tijuana, Mexico · Incident · No injuries · Foreign investigation · Jun 16, 2020 · N526VL · No damage
  > The Mexican government has notified the NTSB of an incident involving an Airbus A330-202 that occurred June 16, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the Direccion de Analisis de Accidentes e Incidentes de Aviacion (DGAC) of…
- [NTSB WPR20WA182](https://openairdocs.org/ntsb/WPR20WA182.md): Cessna 152 · Bhubaneswar, India · Accident · 2 fatal · Foreign investigation · Jun 8, 2020 · VT-ENF · Substantial damage
  > The government of India has notified the NTSB of an accident involving a CESSNA 152 airplane that occurred on June 08, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of India's investigation under the provisions of ICAO…
- [NTSB CEN20LA215](https://openairdocs.org/ntsb/CEN20LA215.md): Mitsubishi MU2B · Sioux Falls, SD · Accident · 1 fatal · Class 3 · Limited · Final report · Jun 7, 2020 · N44MX · Destroyed
  > The pilot’s failure to maintain control of the airplane during takeoff for reasons that could not be determined.
- [NTSB CEN20LA214](https://openairdocs.org/ntsb/CEN20LA214.md): Cessna 172 · New Washington, IN · Accident · 1 fatal · Class 3 · Limited · Final report · Jun 6, 2020 · N13520 · Destroyed
  > A high velocity descent and impact with terrain for undetermined reasons.
- [NTSB CEN20WA433](https://openairdocs.org/ntsb/CEN20WA433.md): Cirrus SR22 · Foreign, United Kingdom · Accident · No injuries · Class 5 · Foreign · May 31, 2020 · G-CTAM · Substantial damage
- [NTSB CEN20WA198](https://openairdocs.org/ntsb/CEN20WA198.md): Cessna 150 · Blomberg, Germany · Accident · 1 fatal · Foreign investigation · May 27, 2020 · D-ECVT · Destroyed
  > The government of Germany has notified the NTSB of an accident involving a CESSNA 150 airplane that occurred on May 27, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Germany's investigation under the provisions of…
- [NTSB ERA20WA196](https://openairdocs.org/ntsb/ERA20WA196.md): Diamond DA20 · Rome, Italy · Accident · 1 fatal · Foreign investigation · May 25, 2020 · I-DADL · Substantial damage
  > The government of Italy has notified the NTSB of an accident involving a DIAMOND DA20 airplane that occurred on May 25, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Italy's investigation under the provisions of…
- [NTSB DCA20WA108](https://openairdocs.org/ntsb/DCA20WA108.md): Airbus A320 · Karachi, Pakistan · Accident · 97 fatal · Foreign investigation · May 22, 2020 · AP-BLD · Destroyed
  > The government of Pakistan has notified the NTSB of an accident involving an AIRBUS A320 with CFM56 engines that occurred on May 22, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Pakistan's investigation under the…
- [NTSB CEN20LA187](https://openairdocs.org/ntsb/CEN20LA187.md): Bell OH-58A · West Branch, MI · Accident · No injuries · Class 3 · Limited · Final report · May 20, 2020 · N153SA · Substantial damage
  > The pilot's failure to maintain rotor rpm during a precautionary autorotation, which resulted in a hard landing. Contributing to the accident was the airframe vibration for reasons that could not be determined because examination of the helicopter revealed no…
- [NTSB CEN20LA179](https://openairdocs.org/ntsb/CEN20LA179.md): Cessna P210 · Burlington, WI · Accident · 1 fatal · Class 3 · Limited · Final report · May 15, 2020 · N1JA · Substantial damage
  > The pilot did not maintain a safe altitude during the visual approach, and subsequently lost control which resulted an impact with trees and terrain.
- [NTSB WPR20WA143](https://openairdocs.org/ntsb/WPR20WA143.md): Daher Kodiak · Papua, Indonesia · Accident · 1 fatal · Foreign investigation · May 12, 2020 · PK-MEC · Substantial damage
  > The government of Indonesia has notified the NTSB of an accident involving a Daher Kodiak airplane that occurred on May 12, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Indonesia's investigation under the…
- [NTSB CEN20WA209](https://openairdocs.org/ntsb/CEN20WA209.md): Piper PA38 · Kena, Lithuania · Accident · 2 fatal · Foreign investigation · May 9, 2020 · LY-ATM
  > The National Transportation Safety Board was notified of an accident involving a Piper PA-38-112 airplane, LY-ATM, near Kena, Lithuania. This investigation is under the jurisdiction of Ministry of Justice of the Republic of Lithuania, Transport Accident and…
- [NTSB ERA20WA170](https://openairdocs.org/ntsb/ERA20WA170.md): Learjet 35 · Esquel, Argentina · Accident · 1 fatal · Foreign investigation · May 6, 2020 · LV-BXU · Substantial damage
  > The government of Argentina has notified the NTSB of an accident involving a LEARJET 35 airplane that occurred on May 06, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Argentina's investigation under the provisions…
- [NTSB CEN20WA171](https://openairdocs.org/ntsb/CEN20WA171.md): Cessna 182 · Area Municipio De Joyabaj, Guatemala · Accident · 3 fatal · Foreign investigation · May 6, 2020 · TG-MOL · Destroyed
- [NTSB ERA20WA167](https://openairdocs.org/ntsb/ERA20WA167.md): Grumman AA5 · Dnipropetrovsk, Ukraine · Accident · 2 fatal · Foreign investigation · May 1, 2020 · UR-DCJ · Substantial damage
  > The government of Ukraine has notified the NTSB of an accident involving a GRUMMAN AA5 airplane that occurred on May 01, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Ukraine's investigation under the provisions of…
- [NTSB ANC20WA072](https://openairdocs.org/ntsb/ANC20WA072.md): Sikorsky S76 · Cheonwangbong, South Korea · Accident · 2 fatal · Foreign investigation · May 1, 2020 · HL9646 · Substantial damage
  > The government of Korea, Republic Of has notified the NTSB of an accident involving a SIKORSKY S76 helicopter that occurred on May 01, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Korea, Republic Of's investigation…
- [NTSB CEN20WA200](https://openairdocs.org/ntsb/CEN20WA200.md): Piper PA 25-235 · Angostura, Mexico · Accident · 1 fatal · Foreign investigation · Apr 28, 2020 · XB-ZOZ
- [NTSB CEN20WA157](https://openairdocs.org/ntsb/CEN20WA157.md): Cessna 650 · Ciudad Juarez, Mexico · Incident · No injuries · Foreign investigation · Apr 7, 2020 · XA-SDU · Minor damage
  > On April 7, 2020, about 1640 hours universal coordinated time, a Cessna 650 airplane, Mexican registration XA-SDU, was involved in an incident at the Abraham González International Airport (MMCS), located in Ciudad Juárez, Chihuahua, Mexico, The NTSB has…
- [NTSB CEN20LA140](https://openairdocs.org/ntsb/CEN20LA140.md): Beech 35 · Seguin, TX · Accident · No injuries · Class 3 · Limited · Final report · Apr 1, 2020 · N9883R · Substantial damage
  > The pilot’s mismanagement of airspeed and glidepath during approach for a precautionary landing, which resulted in a runway excursion and a collision with a fence.
- [NTSB ERA20WA137](https://openairdocs.org/ntsb/ERA20WA137.md): Bell 206 · Chicureo, Chile · Accident · 1 fatal · Foreign investigation · Mar 24, 2020 · CC-ARR · Destroyed
- [NTSB ERA20LA134](https://openairdocs.org/ntsb/ERA20LA134.md): Maule MT-7 · Swansboro, NC · Accident · 2 fatal · Class 3 · Limited · Final report · Mar 24, 2020 · N899ZZ · Destroyed
  > The airplane’s turning descent into water while enroute in night instrument meteorological conditions for reasons that could not be determined.
- [NTSB ANC20WA035](https://openairdocs.org/ntsb/ANC20WA035.md): Bell 206 · Konstantinovsky Cape, Russia · Accident · 1 fatal · Foreign investigation · Mar 23, 2020 · RA-01917
  > The government of Russia has notified the NTSB of an accident involving a BELL 206 helicopter that occurred on March 23, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Russia's investigation under the provisions of…
- [NTSB ERA20WA136](https://openairdocs.org/ntsb/ERA20WA136.md): Cessna 310 · Tefe, Brazil · Accident · 2 fatal · Foreign investigation · Mar 13, 2020 · PR-GSG · Substantial damage
  > The government of Brazil has notified the NTSB of an accident involving a Cessna 310 airplane that occurred on March 13, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Brazil's investigation under the provisions of…

Next page: https://openairdocs.org/ntsb-events/000/sequence.md?page=20

## 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=19

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