# 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 31 of 35 · 1,713 cases

## Cases, newest first

- [NTSB ANC13WA097](https://openairdocs.org/ntsb/ANC13WA097.md): Messerschmitt-Bolkow-Blohm BO 105-S · McClure Strait, Canada · Accident · 3 fatal · Foreign investigation · Sep 10, 2013 · C-GCFU · Substantial damage
  > On September 9, 2013, about 1845 Mountain standard time, a Canadian Coast Guard Messerschmitt-Bolkow-Blohm (MBB) BO105-S helicopter, Canadian registration C-GCFU, crashed into ocean waters near McClure Strait, Canada. The three crew members on board were…
- [NTSB CEN13WA527](https://openairdocs.org/ntsb/CEN13WA527.md): Cessna T303 · Jersey · Accident · 2 fatal · Foreign investigation · Sep 4, 2013 · N289CW · Substantial damage
- [NTSB CEN13WA516](https://openairdocs.org/ntsb/CEN13WA516.md): Piper PA-32T · Wickede, Germany · Accident · 7 fatal · Foreign investigation · Aug 27, 2013 · D-EERB · Destroyed
  > On August 27, 2013, at 1521 coordinated universal time, a Piper PA-32T, German registered D-EERB, was destroyed when it impacted terrain under unknown circumstances near Wickede, Germany. Visual meteorological conditions prevailed at the time of the accident.…
- [NTSB CEN13WA505](https://openairdocs.org/ntsb/CEN13WA505.md): Cessna T210F · Culiacan, Mexico · Accident · 4 fatal · Foreign investigation · Aug 26, 2013 · XB-MYI · Destroyed
  > On August 25, 2013, a Mexican registered Cessna T210F, XB-MYI, impacted terrain near Culiacan, Mexico. The pilot and three passengers received fatal injuries. The airplane was destroyed by post impact fire. The flight originated from La Noria, Mexico, but the…
- [NTSB CEN14WA225](https://openairdocs.org/ntsb/CEN14WA225.md): Airbus Helicopters 332L2 · Shetland Islands, United Kingdom · Accident · 4 fatal · Foreign investigation · Aug 23, 2013 · G-WNSB · Substantial damage
  > On August 23, 2013, about 1717 UTC, an Airbus Helicopters AS332 L2, G-WNSB (s/n 2582) ditched into the North Sea near the Shetland Islands. The helicopter was destroyed and four passengers were fatally injured. This investigation is under the jurisdiction and…
- [NTSB ERA13LA360](https://openairdocs.org/ntsb/ERA13LA360.md): Quest Kodiak 100 · Westport, MA · Accident · Minor injuries · Limited investigation · Final report · Aug 11, 2013 · N10PZ · Substantial damage
  > A failure to achieve a positive climb rate after takeoff for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any mechanical malfunctions or anomalies that would have precluded normal operation.
- [NTSB ERA13FA349](https://openairdocs.org/ntsb/ERA13FA349.md): Beech A36 · Alma, GA · Accident · 2 fatal · Field investigation · Final report · Aug 4, 2013 · N1831W · Destroyed
  > Descent from cruise flight until impact with trees and the ground for reasons that could not be determined because postaccident examination of the wreckage did not reveal any anomalies that would have precluded normal operation and the pilot's autopsy and…
- [NTSB WPR13CA348](https://openairdocs.org/ntsb/WPR13CA348.md): Cessna 172S · Phoenix, AZ · Accident · No injuries · Data collection · Final report · Jul 26, 2013 · N635ND · Substantial damage
  > A substantially damaged firewall that occurred during an unknown phase of flight for reasons that could not be determined.
- [NTSB CEN13LA361](https://openairdocs.org/ntsb/CEN13LA361.md): Piper PA-30 · Dayton, OH · Accident · No injuries · Limited investigation · Final report · Jun 20, 2013 · N7017Y · Substantial damage
  > The pilot’s loss of control of the airplane for reasons that could not be undetermined because a postaccident examination of the airplane did not reveal any anomalies that would have precluded normal operation.
- [NTSB DCA13WA107](https://openairdocs.org/ntsb/DCA13WA107.md): Boeing 737-800 · Sydney, Australia · Incident · No injuries · Foreign investigation · Jun 10, 2013 · VH-VUX · No damage
  > The Australian Transport Safety Bureau (ATSB), has notified the NTSB of an incident involving a Boeing 737-800 that occurred on June 10, 2013. The NTSB has appointed a U.S. Accredited Representative to assist the ATSB investigation under the provisions of…
- [NTSB CEN13LA287](https://openairdocs.org/ntsb/CEN13LA287.md): Piper PA-28-161 · Oskaloosa, IA · Accident · Minor injuries · Limited investigation · Final report · May 18, 2013 · N47539 · Substantial damage
  > The loss of engine power for reasons that could not be determined because the engine examination did not reveal any malfunctions or failures that would have precluded normal operation.
- [NTSB CEN13LA245](https://openairdocs.org/ntsb/CEN13LA245.md): Raytheon G36 · Hoxie, KS · Accident · No injuries · Limited investigation · Final report · Apr 26, 2013 · N222GL · Substantial damage
  > The loss of engine power due to fuel starvation for reasons that could not be determined because a postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN13FA221](https://openairdocs.org/ntsb/CEN13FA221.md): Mooney M20J · Collinsville, OK · Accident · 2 fatal · Field investigation · Final report · Apr 7, 2013 · N57672 · Destroyed
  > The pilot’s loss of control of the airplane for reasons that could not be determined because an examination of the airplane did not find an abnormality that would have precluded normal operations.
- [NTSB WPR13WA157](https://openairdocs.org/ntsb/WPR13WA157.md): Robinson R44 · Bulli Tops, Australia, Australia · Accident · 4 fatal · Foreign investigation · Mar 21, 2013 · VH-HWQ · Destroyed
  > On March 21, 2013, about 1207 local time, a Robinson Helicopter R44, VH-HWQ, collided with terrain near Bulli Tops, Australia. The pilot was operating the helicopter under the provisions of the Australian Civil Aviation Regulations. The pilot and three…
- [NTSB ERA13FA168](https://openairdocs.org/ntsb/ERA13FA168.md): Piper PA-31T · Fort Lauderdale, FL · Accident · 3 fatal · Field investigation · Final report · Mar 15, 2013 · N63CA · Destroyed
  > The pilot's failure to maintain airplane control following an emergency, the nature of which could not be determined because of crash and fire damage, which resulted in an aerodynamic stall.
- [NTSB ERA13WA178](https://openairdocs.org/ntsb/ERA13WA178.md): Embraer EMB-820C · Almeirim Municipality, Brazil · Accident · 10 fatal · Foreign investigation · Mar 12, 2013 · PT-VAQ · Destroyed
  > On March 12, 2013, about 2330 UTC, an Embraer Aircraft EMB-820C, PT-VAQ, operated by Fretax Taxi Aereo Ltda, crashed during approach to Monte Dourado Airport (SBMD), Almeirim, Brazil. Visual meteorological conditions prevailed at the time and flight plan…
- [NTSB WPR13FA116](https://openairdocs.org/ntsb/WPR13FA116.md): Cessna 172S · Minden, NV · Accident · 1 fatal · Field investigation · Final report · Feb 7, 2013 · N328SP · Destroyed
  > The pilot’s failure to maintain airplane control while maneuvering over mountainous terrain.
- [NTSB ERA13WA128](https://openairdocs.org/ntsb/ERA13WA128.md): Beech C90 · Candido Mota, Brazil · Accident · 5 fatal · Foreign investigation · Feb 3, 2013 · PP-AVJ · Destroyed
  > On February 3, 2013, about 2230 coordinated universal time, a Beech C90A, Brazilian registration PP-AVG, was destroyed when it impacted terrain near Cândido Mota, Brazil. The pilot and four passengers were fatally injured. The flight originated from Regional…
- [NTSB ERA13WA124](https://openairdocs.org/ntsb/ERA13WA124.md): Bell 206B · Sao Paulo, Brazil · Accident · 2 fatal · Foreign investigation · Jan 21, 2013 · PR-JBN · Substantial damage
  > On January 21, 2013, at 1448 universal coordinated time, a Bell Helicopter 206B, Brazilian registration PR-JBN, sustained substantial damage when it impacted a dwelling. One crewmember and one passenger received fatal injuries and the two other passengers…
- [NTSB CEN13FA137](https://openairdocs.org/ntsb/CEN13FA137.md): Beech 95-B55 (T42A) · Mangum, OK · Accident · 3 fatal · Field investigation · Final report · Jan 19, 2013 · N143E · Substantial damage
  > The airplane's aerodynamic stall/spin at low altitude and subsequent impact with terrain for reasons that could not be determined during postaccident examinations. Contributing to the accident was the pilot's lack of currency/proficiency.
- [NTSB ERA13FA109](https://openairdocs.org/ntsb/ERA13FA109.md): Benton Fred D Seawind 3000 · Sarasota, FL · Accident · 2 fatal · Field investigation · Final report · Jan 12, 2013 · N829GS · Destroyed
  > The pilot's inability to establish a normal climb rate after takeoff for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN13FA100](https://openairdocs.org/ntsb/CEN13FA100.md): Aerovodochody L-29 Delfin · Combine, TX · Accident · 2 fatal · Field investigation · Final report · Dec 13, 2012 · N29NR · Substantial damage
  > The airplane's impact with terrain for reasons that could not be determined during examination of the available evidence because of extensive impact damage and postimpact fire.
- [NTSB ERA13FA071](https://openairdocs.org/ntsb/ERA13FA071.md): Green Gary E Thorp T-18 · Pahokee, FL · Accident · 1 fatal · Field investigation · Final report · Dec 1, 2012 · N118GG · Substantial damage
  > The descent and overstress of the airplane during the descent, which resulted in the in-flight breakup of the airplane.
- [NTSB ERA13WA080](https://openairdocs.org/ntsb/ERA13WA080.md): Piper PA-25-260 · El Viento, Colombia · Accident · 1 fatal · Foreign investigation · Nov 22, 2012 · HK588 · Substantial damage
  > On November 22, 2012, at 1705 Universal Coordinated Time (UTC), a Piper PA-25-260, Colombian registration HK588,operated by Fuminorte Ltda. Fumigaciones Aereas Norte, was substantially damaged when it collided with terrain during an agriculture spraying…
- [NTSB WPR13FA037](https://openairdocs.org/ntsb/WPR13FA037.md): Cessna 421C · Shaver Lake, CA · Accident · 2 fatal · Field investigation · Final report · Nov 11, 2012 · N700EM · Substantial damage
  > The pilot's failure to regain airplane control following a sudden rapid descent during cruise, which resulted in an in-flight breakup. Contributing to the accident was the pilot's decision to make the flight with a failed vacuum pump, particularly at high…
- [NTSB ERA13LA045](https://openairdocs.org/ntsb/ERA13LA045.md): Robinson Helicopter R22 · Alexander City, AL · Accident · Serious injuries · Limited investigation · Final report · Nov 1, 2012 · N231TM · Substantial damage
  > The pilot’s delayed decision to initiate an autorotation and her subsequent improper conduct of the autorotation, which resulted in a hard landing, after the helicopter started vibrating for reasons that could not be determined because postaccident…
- [NTSB CEN13FA025](https://openairdocs.org/ntsb/CEN13FA025.md): Agusta AW139 · Houma, LA · Accident · Serious injuries · Field investigation · Final report · Oct 22, 2012 · N385RH · Substantial damage
  > The helicopter’s sudden and severe vertical vibrations during landing, which resulted in a collision with terrain. The reason for the helicopter’s sudden and severe vertical vibrations could not be determined during postaccident examinations.
- [NTSB ERA13FA032](https://openairdocs.org/ntsb/ERA13FA032.md): Swift Museum Foundation GC-1A · East Moriches, NY · Accident · 2 fatal · Field investigation · Final report · Oct 20, 2012 · N80823 · Substantial damage
  > The failure of the pilot to maintain airspeed, while attempting a precautionary landing for reasons that could not be determined from the available evidence. Contributing to the accident was the pilot’s pitch-up reaction to birds that took flight during his…
- [NTSB ANC13FA004](https://openairdocs.org/ntsb/ANC13FA004.md): Grumman Aircraft ENG C-1A · Willow, AK · Accident · 1 fatal · Field investigation · Final report · Oct 15, 2012 · N27PH · Destroyed
  > The pilot’s loss of control of the airplane for reasons that could not be determined because the wreckage was not recovered from the accident site.
- [NTSB CEN12LA669](https://openairdocs.org/ntsb/CEN12LA669.md): Robinson Helicopter R44 · Nocona, TX · Accident · Minor injuries · Limited investigation · Final report · Sep 30, 2012 · N8341W · Substantial damage
  > The noncertificated pilot’s operation of the helicopter, which resulted in impact with the water.
- [NTSB WPR12LA417](https://openairdocs.org/ntsb/WPR12LA417.md): Seymour Skyranger · Perris, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 13, 2012 · N936LS · Substantial damage
  > A loss of aircraft control during cruise flight for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN12FA628](https://openairdocs.org/ntsb/CEN12FA628.md): Piper PA-23-250 · Bullard, TX · Accident · 1 fatal · Field investigation · Final report · Sep 12, 2012 · N4842P · Substantial damage
  > The pilot's maneuver, which exceeded the airplane's structural limit and resulted in an in-flight breakup.
- [NTSB WPR12LA411](https://openairdocs.org/ntsb/WPR12LA411.md): Cessna A185F · Cambria, CA · Accident · No injuries · Limited investigation · Final report · Sep 9, 2012 · N80SS · Substantial damage
  > A partial loss of engine power during cruise flight for reasons that could not be determined because the airplane sank in the ocean and was not recovered.
- [NTSB ERA12WA577](https://openairdocs.org/ntsb/ERA12WA577.md): Cessna 172R · Macapá, Brazil · Accident · 1 fatal · Foreign investigation · Sep 9, 2012 · PT-WYK · Destroyed
  > On September 12, 2012, about 2112 universal coordinated time, a Cessna 172R, Brazilian registration PT-WYK, was destroyed when it collided with terrain under unknown circumstances near Macapa ´, Brazil. The non-certificated pilot was fatally injured. The…
- [NTSB WPR12LA383](https://openairdocs.org/ntsb/WPR12LA383.md): Cessna 177RG · Olympia, WA · Accident · No injuries · Limited investigation · Final report · Aug 31, 2012 · N300ZX · Substantial damage
  > A loss of directional control during landing for reasons that could not be determined because postaccident examination of the nose gear steering mechanism did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN12WA562](https://openairdocs.org/ntsb/CEN12WA562.md): Piper PA-38-112 · Bruera, Cheshire, United Kingdom · Accident · 2 fatal · Foreign investigation · Aug 16, 2012 · G-BODP · Substantial damage
  > On August 16, 2012, about 1940 universal coordinated time, a Piper PA-38-112 airplane, United Kingdom registration G-BODP, impacted terrain during an instructional flight near Bruera, Cheshire, United Kingdom. The flight instructor and student pilot were…
- [NTSB WPR12FA349](https://openairdocs.org/ntsb/WPR12FA349.md): Cessna P210N · Santa Monica, CA · Accident · 1 fatal · Field investigation · Final report · Aug 11, 2012 · N41KA · Substantial damage
  > The pilot's failure to maintain altitude during a return to the airport following an unspecified emergency; the nature of the emergency could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would…
- [NTSB DCA12CA122](https://openairdocs.org/ntsb/DCA12CA122.md): Airbus A330 · Dulles, VA · Accident · No injuries · Data collection · Final report · Aug 10, 2012 · D-AIKE · 2 aircraft · Minor damage
  > the A330 flightcrew's failure to maintain a safe clearance between his wing and the tail of the DHC-8-400 that was stopped on the lead in line of the gate.
- [NTSB CEN12WA528](https://openairdocs.org/ntsb/CEN12WA528.md): Cessna 180G · Kenora, Canada · Accident · Serious injuries · Foreign investigation · Aug 1, 2012 · N4695U · Substantial damage
- [NTSB CEN12LA495](https://openairdocs.org/ntsb/CEN12LA495.md): Cirrus Design SR22 · Lakeview, AR · Accident · No injuries · Limited investigation · Final report · Jul 29, 2012 · N462CP · Substantial damage
  > The pilot’s loss of control during the takeoff roll for reasons that could not be determined because postaccident examination of the airplane did not reveal any anomalies that would have precluded normal operation.
- [NTSB DCA12WA135](https://openairdocs.org/ntsb/DCA12WA135.md): Agusta A109 · Jiquipilco, Mexico · Accident · 3 fatal · Foreign investigation · Jul 28, 2012 · XA-UQH · Destroyed
  > The Mexican Dirección General de Aeronáutica Civil (DGAC) has notified the NTSB of an accident involving a AgustaWestland 109SP helicopter that occurred on July 28, 2012. The NTSB has appointed a U.S. Accredited Representative to assist the DGAC investigation…
- [NTSB WPR12FAMS1](https://openairdocs.org/ntsb/WPR12FAMS1.md): Jeffko Glasair · Tonasket, WA · Accident · 1 fatal · Missing aircraft · Final report · Jul 23, 2012 · N743CA · Substantial damage
  > The cause of the accident is undetermined as the airplane has not been located and remains missing.
- [NTSB ERA12CA466](https://openairdocs.org/ntsb/ERA12CA466.md): Cessna 172P · St. Augustine, FL · Accident · No injuries · Data collection · Final report · Jul 18, 2012 · N127EP · Substantial damage
  > Undetermined due to a lack of information about when the damage to the airplane occurred.
- [NTSB CEN12LA455](https://openairdocs.org/ntsb/CEN12LA455.md): Cessna 175A · Shelby, IL · Accident · No injuries · Limited investigation · Final report · Jul 17, 2012 · N7003E · Substantial damage
  > The loss of engine power due to oil starvation for reasons that could not be determined because engine examinations revealed no malfunctions or failures that would have led to oil starvation.
- [NTSB ERA12FAMS2](https://openairdocs.org/ntsb/ERA12FAMS2.md): Cessna 150F · Atlantic Ocean (Atlantic Ocean) · Accident · 1 fatal · Missing aircraft · Final report · Jun 8, 2012 · N8281S · Substantial damage
  > Undetermined (airplane and pilot missing).
- [NTSB CEN12FAMS1](https://openairdocs.org/ntsb/CEN12FAMS1.md): Piper PA-31-325 · Duluth, MN · Accident · 1 fatal · Missing aircraft · Final report · Jun 8, 2012 · N174BH · Substantial damage
  > Undetermined because the airplane was not found.
- [NTSB CEN12LA352](https://openairdocs.org/ntsb/CEN12LA352.md): Grumman G164 · Higginson, AR · Accident · No injuries · Limited investigation · Final report · Jun 7, 2012 · N779EF · Substantial damage
  > The partial loss of engine power for reasons that could not be determined due to impact and fire damage.
- [NTSB WPR12LA314](https://openairdocs.org/ntsb/WPR12LA314.md): Cessna 182R · Hilo, HI · Accident · No injuries · Limited investigation · Final report · Jun 6, 2012 · N73466 · Substantial damage
  > The damage to the engine firewall for a reason that was undetermined because the damage was not reported when it occurred.
- [NTSB ERA12WA383](https://openairdocs.org/ntsb/ERA12WA383.md): Piper PA-28R-200 · São Paulo, Brazil · Accident · 1 fatal · Foreign investigation · Jun 2, 2012 · PT-KRF · Destroyed
- [NTSB ERA12LA364](https://openairdocs.org/ntsb/ERA12LA364.md): Moyes B/Bailey B Dragonfly · Trenton, GA · Accident · 1 fatal · Limited investigation · Final report · May 26, 2012 · N56FP · Substantial damage
  > The airplane's entry into an uncontrolled descent for reasons that could not be determined because postaccident examination of the airplane did not reveal any anomalies that would have precluded normal operation and it could not be determined whether the…

Next page: https://openairdocs.org/ntsb-events/000/sequence.md?page=32

## 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=31

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