# NTSB investigations: Not determined, general

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 12 of 45 · 2,248 cases

## Cases, newest first

- [NTSB ERA18LA249](https://openairdocs.org/ntsb/ERA18LA249.md): Edward R. Sugg Sonex · Marion, SC · Accident · 1 fatal · Limited investigation · Final report · Sep 12, 2018 · N75SX · Destroyed
  > Impact with terrain for reasons that could not be determined based on the available information.
- [NTSB WPR18LA257](https://openairdocs.org/ntsb/WPR18LA257.md): Piper J3C · Jackson, CA · Accident · No injuries · Class 2 · Limited · Final report · Sep 8, 2018 · N70192 · Substantial damage
  > A loss of directional control during takeoff and initial climb for reasons that could not be determined based on the available information.
- [NTSB CEN18LA377](https://openairdocs.org/ntsb/CEN18LA377.md): Piper PA32 · Roanoke, TX · Accident · Serious injuries · Limited investigation · Final report · Sep 8, 2018 · N33354 · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB ERA18LA243](https://openairdocs.org/ntsb/ERA18LA243.md): Piper PA12 · Cochranton, PA · Accident · No injuries · Class 3 · Limited · Final report · Sep 1, 2018 · N3415M · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB ERA18LA241](https://openairdocs.org/ntsb/ERA18LA241.md): Diamond DA40 · Mount Pleasant, TN · Accident · Minor injuries · Limited investigation · Final report · Sep 1, 2018 · N388MA · Substantial damage
  > A total loss of engine power for reasons that could not be determined because postaccident examination of the airplane did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB ERA18LA239](https://openairdocs.org/ntsb/ERA18LA239.md): Avid MK-4 · Harnett, NC · Accident · No injuries · Class 3 · Limited · Final report · Aug 30, 2018 · N628X · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB CEN18LA356](https://openairdocs.org/ntsb/CEN18LA356.md): Air Tractor AT 301 · Partridge, KS · Accident · No injuries · Limited investigation · Final report · Aug 29, 2018 · N3164K · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB ERA18FA235](https://openairdocs.org/ntsb/ERA18FA235.md): Airtime Cygnet · Pensacola, FL · Accident · 1 fatal · Field investigation · Final report · Aug 27, 2018 · N186AT · Substantial damage
  > The student pilot's loss of aircraft control for undetermined reasons.
- [NTSB ERA18FA231](https://openairdocs.org/ntsb/ERA18FA231.md): Cessna 182 · Swainsboro, GA · Accident · 4 fatal · Field investigation · Final report · Aug 25, 2018 · N4785D · Destroyed
  > The total loss of engine power for reasons that could not be determined based on available information.
- [NTSB ERA18LA229](https://openairdocs.org/ntsb/ERA18LA229.md): Beech A36 · Quincy, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 24, 2018 · N773CB · Substantial damage
  > A loss of engine power due to decreased fuel flow for reasons that could not be determined based on the available evidence.
- [NTSB CEN18LA349](https://openairdocs.org/ntsb/CEN18LA349.md): North American T-28B · Minneapolis, MN · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 2018 · N215SF · Destroyed
  > The fire during approach for reasons that could not be determined based on the available evidence, which resulted in impact with terrain during approach for a precautionary landing.
- [NTSB CEN18LA350](https://openairdocs.org/ntsb/CEN18LA350.md): Cessna A188 · Atchison, KS · Accident · No injuries · Limited investigation · Final report · Aug 22, 2018 · N78417 · Substantial damage
  > The partial loss of engine power for reasons that could not be determined during the postaccident examination.
- [NTSB CEN18LA347](https://openairdocs.org/ntsb/CEN18LA347.md): Piper PA-28-235 · Little Rock, AR · Accident · Serious injuries · Limited investigation · Final report · Aug 22, 2018 · N7954W · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on the available evidence, which resulted in a forced landing on unsuitable terrain.
- [NTSB WPR18LA234](https://openairdocs.org/ntsb/WPR18LA234.md): Air Tractor AT 400 · Grand Forks, ND · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 21, 2018 · N7300M · Substantial damage
  > The loss of engine power while maneuvering due to the failure of the power turbine blade assembly for reasons that could not be determined based on available evidence.
- [NTSB WPR18TA239](https://openairdocs.org/ntsb/WPR18TA239.md): Eurocopter EC130 · Hilo, HI · Accident · Minor injuries · Class 3 · Final report · Aug 19, 2018 · N11QP · Substantial damage
  > The separation of the left sliding door in flight after it opened for reasons that could not be determined based on the available evidence, which resulted in damage to the main rotor blades.
- [NTSB CEN18LA335](https://openairdocs.org/ntsb/CEN18LA335.md): Cessna R172E · Colorado Springs, CO · Accident · No injuries · Limited investigation · Final report · Aug 16, 2018 · N146AC · Substantial damage
  > The airplane’s failure to maintain a climb after takeoff, which resulted in a forced landing on unsuitable terrain; the reason for the airplane’s failure to climb could not be determined based on the available evidence.
- [NTSB CEN18LA338](https://openairdocs.org/ntsb/CEN18LA338.md): Lazair II · Racine, OH · Accident · Serious injuries · Limited investigation · Final report · Aug 15, 2018 · UNREG · Destroyed
  > The impact with terrain for reasons that could not be determined based on the lack of evidence.
- [NTSB CEN18LA332](https://openairdocs.org/ntsb/CEN18LA332.md): Aero Commander S2R · Westbrook, MN · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 2018 · N5521X · Substantial damage
  > A runway excursion during takeoff for reasons that could not be determined based on the available evidence.
- [NTSB WPR18FA219](https://openairdocs.org/ntsb/WPR18FA219.md): Beech A36TC · Sylmar, CA · Accident · 1 fatal · Field investigation · Final report · Aug 12, 2018 · N136RM · Substantial damage
  > The pilot's failure to maintain airplane control following a total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB WPR18FA220](https://openairdocs.org/ntsb/WPR18FA220.md): De Havilland DHC8 · Steilacoom, WA · Accident · 1 fatal · Field investigation · Final report · Aug 11, 2018 · N449QX · Destroyed
  > The NTSB did not determine the probable cause of this event and does not plan to issue an investigative report or open a public docket. The investigation of this event is being conducted under the jurisdiction of the Federal Bureau of Investigation.
- [NTSB ERA18LA215](https://openairdocs.org/ntsb/ERA18LA215.md): Cessna R182 · Florence, SC · Accident · No injuries · Limited investigation · Final report · Aug 9, 2018 · N1693R · Substantial damage
  > The pilot's failure to comply with emergency procedures in the pilot's operating handbook, resulting in the collapse of the main landing gear during landing. Contributing to the accident was the pilot's failure to address the low battery voltage before…
- [NTSB CEN18LA321](https://openairdocs.org/ntsb/CEN18LA321.md): Cessna A188 · Sedalia, MO · Accident · Minor injuries · Limited investigation · Final report · Aug 6, 2018 · N4996R · Destroyed
  > A total loss of engine power during low-altitude maneuvering for reasons that could not be determined due to postimpact fire damage.
- [NTSB ANC18FA063](https://openairdocs.org/ntsb/ANC18FA063.md): De Havilland DHC-2 · Talkeetna, AK · Accident · 5 fatal · Field investigation · Final report · Aug 5, 2018 · N323KT · Substantial damage
  > Impact with terrain for reasons that could not be determined because the airplane was not recovered due to the inaccessible nature of the accident site.
- [NTSB CEN18LA319](https://openairdocs.org/ntsb/CEN18LA319.md): Beech 35 · Knox, IN · Accident · No injuries · Limited investigation · Final report · Aug 4, 2018 · N533JW · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB CEN18FA310](https://openairdocs.org/ntsb/CEN18FA310.md): Extra EA 400 · Ponca City, OK · Accident · 5 fatal · Class 3 · Field · Final report · Aug 4, 2018 · N13EP · Destroyed
  > The pilot's loss of control for reasons that could not be determined with the available evidence.
- [NTSB CEN18LA311](https://openairdocs.org/ntsb/CEN18LA311.md): Cessna 188 · Watkins, MN · Accident · No injuries · Limited investigation · Final report · Aug 2, 2018 · N5523S · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because a postaccident examination revealed no evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN18LA307](https://openairdocs.org/ntsb/CEN18LA307.md): Gerald Dan Coppock Bade-E · Escanaba, MI · Accident · No injuries · Limited investigation · Final report · Aug 2, 2018 · N142NV · Substantial damage
  > The loss of control during the landing rollout for reasons that could not be determined based on the available evidence, which resulted in a ground loop and runway excursion.
- [NTSB ANC18LA059](https://openairdocs.org/ntsb/ANC18LA059.md): Cessna A185F · White Mountain, AK · Accident · No injuries · Class 3 · Limited · Final report · Aug 1, 2018 · N185KB · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB WPR18LA207](https://openairdocs.org/ntsb/WPR18LA207.md): Cessna 172 · Mount Vernon, OH · Accident · Minor injuries · Limited investigation · Final report · Jul 28, 2018 · N785SP · Destroyed
  > An in-flight fuel-fed fire from an unknown source for reasons that could not be determined due to the extensive fire damage to the airplane.
- [NTSB ERA18LA201](https://openairdocs.org/ntsb/ERA18LA201.md): Aero Commander 560 · Crestview, FL · Accident · No injuries · Class 3 · Limited · Final report · Jul 26, 2018 · N2705B · Substantial damage
  > A collapse of the right main landing gear for reasons that could not be determined based on the available information.
- [NTSB CEN18TA296](https://openairdocs.org/ntsb/CEN18TA296.md): Fisher Dakato Hawk · Oshkosh, WI · Accident · No injuries · Final report · Jul 26, 2018 · N677TS · Substantial damage
  > The failure of the left main landing gear for reasons that could not be determined, which resulted in a loss of directional control during the ground roll.
- [NTSB WPR18LA206](https://openairdocs.org/ntsb/WPR18LA206.md): Bell UH 1H · Oakdale, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 24, 2018 · N107CH · Substantial damage
  > The pilot's loss of control during a precautionary landing following an abnormal noise in-flight, the source of which could not be determined.
- [NTSB ANC18LA057](https://openairdocs.org/ntsb/ANC18LA057.md): Aeros Venture 2000 · Bad Axe, MI · Accident · 1 fatal · Limited investigation · Final report · Jul 23, 2018 · N43865 · Substantial damage
  > The pilot's loss of aircraft control for reasons that could not be determined based on the available information.
- [NTSB CEN18LA288](https://openairdocs.org/ntsb/CEN18LA288.md): Air Tractor AT 301 · Milford, IA · Accident · No injuries · Limited investigation · Final report · Jul 22, 2018 · N3169H · Substantial damage
  > The pilot's loss of airplane control during takeoff for reasons that could not be determined because no anomalies consistent with a flight control system malfunction were observed.
- [NTSB WPR18LA204](https://openairdocs.org/ntsb/WPR18LA204.md): Microlites Ptyltd Dragonfly B · Buckley, WA · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 19, 2018 · N7008Z · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB CEN18LA281](https://openairdocs.org/ntsb/CEN18LA281.md): Piper PA28 · Shreveport, LA · Accident · No injuries · Limited investigation · Final report · Jul 19, 2018 · N7080F · Substantial damage
  > The partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB WPR18FA198](https://openairdocs.org/ntsb/WPR18FA198.md): Ryan Navion · Truckee, CA · Accident · 2 fatal · Field investigation · Final report · Jul 17, 2018 · N5329K · Substantial damage
  > A loss of engine power for reasons that could not be determined.
- [NTSB CEN18LA272](https://openairdocs.org/ntsb/CEN18LA272.md): Cessna 182 · Odessa, TX · Accident · No injuries · Limited investigation · Final report · Jul 16, 2018 · N182GQ · Substantial damage
  > An on-ground fire for reasons that could not be determined based on the available information.
- [NTSB CEN18LA269](https://openairdocs.org/ntsb/CEN18LA269.md): Bell 47J · Franklin, IN · Accident · Serious injuries · Limited investigation · Final report · Jul 15, 2018 · N8568F · Destroyed
  > A total loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB CEN18LA270](https://openairdocs.org/ntsb/CEN18LA270.md): Air Tractor AT 602 · Bismarck, IL · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 13, 2018 · N629LA · Substantial damage
  > A loss of control for reasons that could not be determined based on the available information.
- [NTSB WPR18LA197](https://openairdocs.org/ntsb/WPR18LA197.md): Beech 90 · Tolani Lake, AZ · Accident · No injuries · Class 3 · Limited · Final report · Jul 12, 2018 · N617MM · Substantial damage
  > An autopilot deviation during climb for undetermined reasons, which resulted in an in-flight upset and loss of airplane control. Contributing to the accident was the pilot’s failure to adequately monitor flight systems due to a distraction.
- [NTSB WPR18LA193](https://openairdocs.org/ntsb/WPR18LA193.md): Cessna 150 · Ontario, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 12, 2018 · N6908G · Destroyed
  > A total loss of engine power during final approach for reasons that could not be determined based on the available information.
- [NTSB ERA18FA189](https://openairdocs.org/ntsb/ERA18FA189.md): Rutan Defiant · Plainville, CT · Accident · 1 fatal · Field investigation · Final report · Jul 12, 2018 · N17DR · Substantial damage
  > The pilot's loss of airplane control during climb for reasons that could not be determined based on the available information.
- [NTSB CEN18FA263](https://openairdocs.org/ntsb/CEN18FA263.md): Air Tractor AT-602 · Wheatley, AR · Accident · 1 fatal · Field investigation · Final report · Jul 11, 2018 · N8508P · Destroyed
  > The pilot's failure to maintain clearance from terrain for reasons that could not be determined based on the available evidence.
- [NTSB WPR18LA189](https://openairdocs.org/ntsb/WPR18LA189.md): Grumman G164B · Colusa, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 9, 2018 · N6696K · Substantial damage
  > Total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB CEN18LA280](https://openairdocs.org/ntsb/CEN18LA280.md): Best Off Skyranger · Houghton Lake, MI · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 8, 2018 · N4329R · Substantial damage
  > A partial loss of engine power during takeoff for undetermined reasons.
- [NTSB CEN18LA251](https://openairdocs.org/ntsb/CEN18LA251.md): Robinson R22 · Georgetown, TX · Accident · No injuries · Limited investigation · Final report · Jul 2, 2018 · N830J · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on the available information, which resulted in an impact with terrain during the subsequent forced landing.
- [NTSB CEN18FA244](https://openairdocs.org/ntsb/CEN18FA244.md): Robinson R22 · Sterling City, TX · Accident · 1 fatal · Field investigation · Final report · Jun 30, 2018 · N787SH · Destroyed
  > A loss of control during the landing approach for reasons that could not be determined based on the available information.
- [NTSB WPR18LA194](https://openairdocs.org/ntsb/WPR18LA194.md): Piper PA32 · Salisbury, NC · Accident · No injuries · Class 3 · Limited · Final report · Jun 29, 2018 · N8440F · Substantial damage
  > A total loss of engine power due to fuel starvation for reasons that could not be determined based on the available information.
- [NTSB CEN18FA242](https://openairdocs.org/ntsb/CEN18FA242.md): Champion 7GCAA · Arthur, NE · Accident · 1 fatal · Field investigation · Final report · Jun 29, 2018 · N9026L · Substantial damage
  > The pilot's failure to recover from a spin for reasons that could not be determined based on the available information.

Next page: https://openairdocs.org/ntsb-findings/05000000/cases.md?page=13

## 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '05000000'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/05000000/cases?page=12

---
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, except the copies of manufacturers’ service documents, which belong to their rights holders.