# 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 34 of 35 · 1,713 cases

## Cases, newest first

- [NTSB CEN10LA234](https://openairdocs.org/ntsb/CEN10LA234.md): CGS Hawk · Haysville, KS · Accident · 1 fatal · Limited investigation · Final report · May 2, 2010 · UNREG · Substantial damage
  > The pilot’s failure to maintain adequate airspeed, which resulted in an aerodynamic stall and loss of control of the airplane, for undetermined reasons.
- [NTSB ERA10LA251](https://openairdocs.org/ntsb/ERA10LA251.md): Interstate S1A · Lakeland, FL · Accident · Serious injuries · Limited investigation · Final report · May 1, 2010 · N34926 · Substantial damage
  > The pilot’s failure to maintain clearance from terrain for undetermined reasons.
- [NTSB ERA10FA232](https://openairdocs.org/ntsb/ERA10FA232.md): Maule M5-235C · Zellwood, FL · Accident · 1 fatal · Field investigation · Final report · Apr 18, 2010 · N9196E · Substantial damage
  > The pilot's failure to maintain airspeed while maneuvering after takeoff, which resulted in an aerodynamic stall, loss of aircraft control, and collision with trees.
- [NTSB CEN10FA181](https://openairdocs.org/ntsb/CEN10FA181.md): Cessna 172D · Hillsboro, OH · Accident · 1 fatal · Field investigation · Final report · Apr 2, 2010 · N2190Y · Destroyed
  > Impact with the runway pavement for unknown reasons.
- [NTSB CEN10LA186](https://openairdocs.org/ntsb/CEN10LA186.md): Cessna 182F · Wichita Falls, TX · Accident · No injuries · Limited investigation · Final report · Apr 1, 2010 · N3320U · Substantial damage
  > A fire of undetermined origin.
- [NTSB CEN10CA267](https://openairdocs.org/ntsb/CEN10CA267.md): Cessna R172E · Alamogordo, NM · Accident · No injuries · Data collection · Final report · Mar 22, 2010 · N7871N · Substantial damage
  > An unknown event that resulted in damage to the airplane's firewall.
- [NTSB ERA10WA171](https://openairdocs.org/ntsb/ERA10WA171.md): Robinson R44 · Karelia, Russia · Accident · 2 fatal · Foreign investigation · Mar 10, 2010 · RA-04163 · Substantial damage
  > On March 10, 2010, about 0900 Universal Coordinated Time (UTC), a Robinson R-44 helicopter, Russian registration RA-04163, operated by a private individual, was involved in an accident under unknown circumstances near Karelia, Russia. The helicopter departed…
- [NTSB DCA12WA015](https://openairdocs.org/ntsb/DCA12WA015.md): Boeing 737 · Brussels, Belgium · Incident · No injuries · Foreign investigation · Mar 1, 2010 · EIDYI · Minor damage
  > The Irish Air Accident Investigation Unit (AAIU) has notified the NTSB of an incident involving a Boeing 737-800 that occurred on March 1, 2010. The NTSB has appointed a U.S. Accredited Representative to assist the AAIU investigation under the provisions of…
- [NTSB ERA10WA153](https://openairdocs.org/ntsb/ERA10WA153.md): Cessna U206F · Nazca, Peru · Accident · 7 fatal · Foreign investigation · Feb 25, 2010 · OB-1117 · Destroyed
  > On February 25, 2010, about 1630 universal coordinated time (1130 local time), a Cessna U206F, Peruvian registration OB-1117, operated by Nazca Airlines, was destroyed when it impacted terrain near Nazca, Ica Province, Peru. The Peruvian commercial pilot and…
- [NTSB DCA10WA043](https://openairdocs.org/ntsb/DCA10WA043.md): Boeing 757 - 236 · Bacelona, Spain · Incident · No injuries · Foreign investigation · Feb 21, 2010 · G-CPET · No damage
  > The UK Air Accidents Investigation Branch (AAIB) has notified the NTSB of an accident involving a B757-236 that occurred on February 21, 2010. The NTSB has appointed a U.S. Accredited Representative to assist the AAIB investigation under the provisions of…
- [NTSB ERA10WA157](https://openairdocs.org/ntsb/ERA10WA157.md): Bell 206 · Carayaca, Venezuela · Accident · 4 fatal · Foreign investigation · Feb 19, 2010 · YV2191 · Substantial damage
  > On February 19, 2010, about 1950 Universal Coordinated Time, a Bell 206B helicopter, Venezuelan registration YV2191, operated by Aeromedic 2005, was lost from contact with Maiquetia approach control. The helicopter departed from Generalisimo Francisco de…
- [NTSB DCA10WA035](https://openairdocs.org/ntsb/DCA10WA035.md): Boeing 737 · Surabaya, Indonesia · Incident · No injuries · Foreign investigation · Feb 13, 2010 · PK-YTR · Minor damage
  > On February 12, 2010, a Metro Batavia Boeing 737-200, registration PK-YTR, aborted the takeoff from runway 10 at Juanda Airport, Surabaya, Indonesia. There were no injuries to the 5 crew members and 120 passengers onboard and the airplane received minor…
- [NTSB ERA10WA130](https://openairdocs.org/ntsb/ERA10WA130.md): Piper PA-34 · Ipero, Brazil · Accident · 2 fatal · Foreign investigation · Jan 27, 2010 · PR-UGO · Substantial damage
  > On January 27, 2010, at 0918 EST, a Piper PA-34, PR-UGO, of Brazilian registration, registered to and operated by an individual, crashed 10 minutes after takeoff. The pilot and passenger were killed and the airplane was substantially damaged. The weather at…
- [NTSB CEN10CA110](https://openairdocs.org/ntsb/CEN10CA110.md): Beech J35 · Russellville, AR · Accident · No injuries · Data collection · Final report · Jan 26, 2010 · N647T · Substantial damage
  > The pilot's improper engine starting procedures.
- [NTSB ERA10FAMS1](https://openairdocs.org/ntsb/ERA10FAMS1.md): Cirrus SR22 · Gulf of Mexico · Accident · 1 fatal · Missing aircraft · Final report · Dec 15, 2009 · N723LJ · Destroyed
  > Undetermined (airplane and pilot missing).
- [NTSB WPR10WA070](https://openairdocs.org/ntsb/WPR10WA070.md): Robinson R44 · Netanya, Israel, Israel · Accident · 4 fatal · Foreign investigation · Nov 24, 2009 · 4X-BDM · Substantial damage
  > The accident is under the jurisdiction of, and is being investigated, by the State of Israel, Ministry of Transport, Aviation Incidents and Accidents Investigation (AIAI).
- [NTSB ERA10FA052](https://openairdocs.org/ntsb/ERA10FA052.md): Aero Commander 100 · Weston, FL · Accident · 1 fatal · Field investigation · Final report · Nov 8, 2009 · N4139X · Substantial damage
  > The flight's descent for undetermined reasons, resulting in the in-flight collision with terrain.
- [NTSB ERA10LA050](https://openairdocs.org/ntsb/ERA10LA050.md): Grumman Aircraft ENG G-111 · Ft Pierce, FL · Accident · Minor injuries · Limited investigation · Final report · Nov 5, 2009 · N120FB · Substantial damage
  > A total loss of left engine power and subsequent failure of the airplane to maintain airspeed and altitude on the remaining engine for undetermined reasons.
- [NTSB CEN10LA039](https://openairdocs.org/ntsb/CEN10LA039.md): Beech 95-B55 · Brenham, TX · Accident · Serious injuries · Limited investigation · Final report · Nov 4, 2009 · N725GS · Substantial damage
  > The loss of engine power (right engine) during initial climb for undetermined reasons.
- [NTSB ERA10WA035](https://openairdocs.org/ntsb/ERA10WA035.md): Hawker BAe-125-800B · Minsk, Belarus · Accident · 5 fatal · Foreign investigation · Oct 26, 2009 · RA-02807 · Destroyed
  > On October 26, 2009, at 1934 universal coordinated time (2134 local standard time), a Hawker-Beech BAe-125-800, Russian registration RA-02807, operated by S-Air, was destroyed when it impacted forested terrain during a go-around attempt at Minsk-2…
- [NTSB ERA10LA026](https://openairdocs.org/ntsb/ERA10LA026.md): Fuji LM1 · Athens, GA · Accident · 2 fatal · Limited investigation · Final report · Oct 22, 2009 · N2121J · Substantial damage
  > An aerodynamic stall shortly after takeoff for undetermined reasons.
- [NTSB ERA10FA024](https://openairdocs.org/ntsb/ERA10FA024.md): Piper PA-23-250 · Summerville, SC · Accident · 4 fatal · Field investigation · Final report · Oct 21, 2009 · N62635 · Substantial damage
  > Flight into terrain for undetermined reasons.
- [NTSB WPR09CA474](https://openairdocs.org/ntsb/WPR09CA474.md): Cessna T182T · Granite Falls, WA · Accident · No injuries · Data collection · Final report · Sep 29, 2009 · N2183P · Substantial damage
  > Landing in rugged terrain for undetermined reasons.
- [NTSB ERA09WA519](https://openairdocs.org/ntsb/ERA09WA519.md): Robinson R44 · Perm, Russia · Accident · 2 fatal · Foreign investigation · Sep 14, 2009 · RA-04289 · Substantial damage
  > On September 14, 2009, at 0700 Universal Time Coordinated, a Robinson R44-II, Russian registration RA-04289, operated by Geliks Airline, crashed 6.2 miles from the Perm Airport, Perm, Russia. The pilot and passenger were killed, and the helicopter sustained…
- [NTSB CEN09CA584](https://openairdocs.org/ntsb/CEN09CA584.md): Yates W/Lazar M Safari Helicopter · Cedar Park, TX · Accident · Minor injuries · Data collection · Final report · Sep 13, 2009 · N555BB · Substantial damage
  > An in-flight separation of the tail rotor blades and the tail rotor gearbox for undetermined reasons.
- [NTSB CEN09LA573](https://openairdocs.org/ntsb/CEN09LA573.md): Beech B36TC · Sullivan, MO · Accident · No injuries · Limited investigation · Final report · Sep 7, 2009 · N65873 · Substantial damage
  > A loss of aircraft control for undetermined reasons.
- [NTSB CEN09CA569](https://openairdocs.org/ntsb/CEN09CA569.md): Cessna T210 · Tulsa, OK · Accident · No injuries · Data collection · Final report · Sep 7, 2009 · N6442Y · Substantial damage
  > A temporary loss of elevator pitch control for undetermined reasons.
- [NTSB CEN09CA563](https://openairdocs.org/ntsb/CEN09CA563.md): Halbert James H Rans S-7 · Short, OK · Accident · Minor injuries · Data collection · Final report · Sep 6, 2009 · N615JH · Destroyed
  > A partial loss of engine power for undetermined reasons.
- [NTSB CEN09LA558](https://openairdocs.org/ntsb/CEN09LA558.md): Hughes 269C · Arapahoe, NE · Accident · No injuries · Limited investigation · Final report · Sep 2, 2009 · N58163 · Substantial damage
  > A sudden vibration for undetermined reasons.
- [NTSB WPR09LA413](https://openairdocs.org/ntsb/WPR09LA413.md): Antares US MA-34R · San Jose, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 24, 2009 · N2356W · Substantial damage
  > The pilot's failure to maintain aircraft control during engine startup, which resulted in a collision with parked aircraft. Contributing to the accident was the engine's inadvertent increase to high power for undetermined reasons.
- [NTSB ERA09LA427](https://openairdocs.org/ntsb/ERA09LA427.md): Piper PA-34-200T · Mount Holly, NJ · Accident · No injuries · Limited investigation · Final report · Jul 27, 2009 · N1494X · Substantial damage
  > A hard landing on an unknown date, resulting in damage to the left main landing gear support fitting.
- [NTSB ANC09WA071](https://openairdocs.org/ntsb/ANC09WA071.md): Piper PA-46-31P · Kamsack, Canada · Accident · 2 fatal · Foreign investigation · Jul 20, 2009 · C-GUZZ · Substantial damage
  > On July 19, 2009, about 2100 central standard time, a Piper PA-46-31P airplane, Canadian registration C-GUZZ, crashed on takeoff from Kamsack, Saskatchewan, Canada. Two people aboard received fatal injuries, and the remaining two people aboard received…
- [NTSB ERA09LA413](https://openairdocs.org/ntsb/ERA09LA413.md): Cessna 152 · Ponce, PR · Accident · 1 fatal · Limited investigation · Final report · Jul 19, 2009 · N5518P · Destroyed
  > The airplane’s impact with water for undetermined reasons.
- [NTSB ERA09LA410](https://openairdocs.org/ntsb/ERA09LA410.md): Robinson R44 · Silver Spring, PA · Accident · No injuries · Limited investigation · Final report · Jul 19, 2009 · N25VH · Substantial damage
  > The student pilot's inability to fully control the helicopter, during cruise and the resultant off-field hard landing.
- [NTSB ERA09WA291](https://openairdocs.org/ntsb/ERA09WA291.md): Piper PA-30 · Port Sudan, Sudan · Accident · 2 fatal · Foreign investigation · May 10, 2009 · N502TC · Destroyed
  > On May 10, 2009, at 0530 universal coordinated time (0830 local time), a Piper PA-30, N502TC, was destroyed when it impacted mountainous terrain about 26 nautical miles northwest of Port Sudan, Sudan. The two Yemani pilots onboard were fatally injured. The…
- [NTSB CEN09CA295](https://openairdocs.org/ntsb/CEN09CA295.md): Air Tractor AT502 · Lisse, TX · Accident · Minor injuries · Data collection · Final report · May 8, 2009 · N248LF · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB DCA09WA060](https://openairdocs.org/ntsb/DCA09WA060.md): Boeing 737 · Kwilu, Bandundu, Congo - Kinshasa · Accident · 7 fatal · Foreign investigation · Apr 29, 2009 · TL-ADM · Destroyed
  > On April 29, 2009, about 0800 UTC, TL-ADM, a Boeing 737-200, operated by Bako Air of the Central African Republic, a ferry flight, crashed at the locality of Massamba, District of Kwilu, province of Bandundu, Democratic Republic of Congo. All seven occupants…
- [NTSB CEN09CA268](https://openairdocs.org/ntsb/CEN09CA268.md): Luscombe 8 · Terrell, TX · Accident · No injuries · Data collection · Final report · Apr 22, 2009 · N2330K · Substantial damage
  > The failure of the landing gear due to undetected corrosion.
- [NTSB CEN09IA254](https://openairdocs.org/ntsb/CEN09IA254.md): Bell 206 · Vick, TX · Incident · No injuries · Incident investigation · Final report · Apr 8, 2009 · N295AE · Minor damage
  > Undetermined.
- [NTSB CEN09IA234](https://openairdocs.org/ntsb/CEN09IA234.md): Bell 206L-3 · Abilene, TX · Incident · No injuries · Incident investigation · Final report · Mar 29, 2009 · N708M · Minor damage
  > The formation and propagation of a fatigue crack in the trailing edge of the main rotor blade due to interconnected porosity and resultant corrosion. The area of interconnected porosity was due to a manufacturing defect which was not detected during the…
- [NTSB ERA09WA223](https://openairdocs.org/ntsb/ERA09WA223.md): Beech A36 · Querencia, Brazil · Accident · 1 fatal · Foreign investigation · Mar 8, 2009 · PT-LKH · Destroyed
  > None
- [NTSB CEN09FA193](https://openairdocs.org/ntsb/CEN09FA193.md): Bell 206-L4 · Moundridge, KS · Accident · 1 fatal · Field investigation · Final report · Mar 8, 2009 · N863H · Substantial damage
  > Inflight collision with terrain for undetermined reasons.
- [NTSB WPR09LA149](https://openairdocs.org/ntsb/WPR09LA149.md): Cessna 172N · Oceanside, CA · Accident · 1 fatal · Limited investigation · Final report · Mar 6, 2009 · N726RJ · Destroyed
  > A loss of aircraft control for undetermined reasons.
- [NTSB CEN09WA176](https://openairdocs.org/ntsb/CEN09WA176.md): Cessna 206 · Island of Cebaco, Panama · Accident · 1 fatal · Foreign investigation · Feb 16, 2009 · HP-1367 RS · Substantial damage
  > Not Required. Investigation is being conducted by AAC, Panama.
- [NTSB ERA09WA166](https://openairdocs.org/ntsb/ERA09WA166.md): Embraer EMB110 · Coari, Brazil · Accident · 24 fatal · Foreign investigation · Feb 7, 2009 · PR-SAE · Destroyed
  > On February 7, 2009, at 1810 universal time coordinates, an Embraer EMB 110P1, Brazilian registry PT-SEA, operated by Manaus Aerotaxi as a commuter flight, experienced an unknown problem after take-off from the Coari, Amazonas Airport (SWKO) in Coari, Brazil,…
- [NTSB ERA09CA101](https://openairdocs.org/ntsb/ERA09CA101.md): Steven G Goonen Searey · Polkland, FL · Accident · Minor injuries · Data collection · Final report · Dec 20, 2008 · N628MS · Substantial damage
  > A loss of control during the initial climb for undetermined reasons.
- [NTSB ERA09WA113](https://openairdocs.org/ntsb/ERA09WA113.md): Britten Norman BN-2A MK III · Turks and Caicos, Turks & Caicos Islands · Accident · 12 fatal · Foreign investigation · Dec 15, 2008 · N650LP · Destroyed
- [NTSB CEN09IA057](https://openairdocs.org/ntsb/CEN09IA057.md): Cessna T210N · Lubbock, TX · Incident · No injuries · Incident investigation · Final report · Nov 9, 2008 · N6267Y · Minor damage
  > An unidentified anomaly within the airplane's electrical system. Contributing to the incident was the pilot's failure to manually extend the landing gear.
- [NTSB ERA09WA037](https://openairdocs.org/ntsb/ERA09WA037.md): Beech 65A90 · Timehri, Guyana · Accident · 3 fatal · Foreign investigation · Nov 1, 2008 · N87V · No damage
- [NTSB ERA09WA028](https://openairdocs.org/ntsb/ERA09WA028.md): Hawker-Beechcraft 100 · Bauru, Brazil · Accident · 1 fatal · Class 5 · Foreign · Oct 12, 2008 · N525ZS · Destroyed

Next page: https://openairdocs.org/ntsb-events/000/sequence.md?page=35

## 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=34

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