# NTSB investigations, 2011: 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.

## Latest cases

- [NTSB CEN12FA072](https://openairdocs.org/ntsb/CEN12FA072.md): Piper PA-28-180 · Perryville, AR · Accident · 4 fatal · Field investigation · Final report · Nov 17, 2011 · N7746W · Substantial damage
  > The pilot's loss of control in flight.
- [NTSB ERA12IA060](https://openairdocs.org/ntsb/ERA12IA060.md): Cessna 550 · Key West, FL · Incident · No injuries · Incident investigation · Final report · Nov 3, 2011 · N938D · Minor damage
  > The pilots’ failure to appropriately apply the landing gear wheel brakes after landing, to properly perform the hard brake pedal-no braking condition procedure following the reported brake failure and to apply the emergency brakes. The reason for the reported…
- [NTSB ERA12FA057](https://openairdocs.org/ntsb/ERA12FA057.md): Eckenrode Carl J Vans RV-6 · Taylorsville, GA · Accident · 1 fatal · Field investigation · Final report · Nov 1, 2011 · N262MA · Substantial damage
  > The airplane's entry into an uncontrolled descent for reasons that could not be determined because postaccident examination of the airplane and the pilot’s medical history did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN12LA047](https://openairdocs.org/ntsb/CEN12LA047.md): Saber Trike unk · Okmulgee, OK · Accident · Serious injuries · Limited investigation · Final report · Oct 15, 2011 · UNREG · Substantial damage
  > The in-flight collision with electrical wires for undetermined reasons.
- [NTSB ERA12FA051](https://openairdocs.org/ntsb/ERA12FA051.md): Cessna 150F · Moncks Corner, SC · Accident · 1 fatal · Field investigation · Final report · Oct 13, 2011 · N3086X · Substantial damage
  > The debilitating effects of ethylene glycol poisoning, which resulted in the pilot’s inability to maintain control of the airplane.
- [NTSB CEN12FA001](https://openairdocs.org/ntsb/CEN12FA001.md): Robinson Helicopter R66 · Philip, SD · Accident · 1 fatal · Field investigation · Final report · Oct 1, 2011 · N266CY · Destroyed
  > The in-flight separation of the main rotor mast following a mast bumping event. The reason for the mast bumping event could not be determined due to postaccident damage.
- [NTSB DCA11WA108](https://openairdocs.org/ntsb/DCA11WA108.md): Aviocar CASA C212 · Aceh, Indonesia · Accident · 18 fatal · Foreign investigation · Sep 29, 2011 · PK-TLF · Substantial damage
  > The National Transportation Safety Committee of Indonesia (KNKT) has notified the NTSB of an accident involving a Aviocar CASA C212 that occurred on September 29, 2011. The NTSB has appointed a U.S. Accredited Representative to assist the KNKT investigation…
- [NTSB WPR11WA476](https://openairdocs.org/ntsb/WPR11WA476.md): Bell 412SP · Mataram, West Nusa, Indonesia · Accident · 2 fatal · Foreign investigation · Sep 25, 2011 · PK-OVC · Substantial damage
  > On September 25, 2011, at 1341 local time (0541 UTC) a Bell Helicopter 412SP, Indonesia registry PK-OVC, crashed in a jungle under unknown circumstances 150 kilometers east of Selaparang Airport, Mataram, West Nusa Tenggara, Indonesia. The Helicopter was…
- [NTSB DCA11WA099](https://openairdocs.org/ntsb/DCA11WA099.md): Airbus A320 · Cusco, Peru · Incident · No injuries · Foreign investigation · Sep 19, 2011 · N493TA · No damage
  > On September 19, 2011, at 1620 UTC, an Airbus A320-233, N493TA, experienced smoke in the cockpit. The airplane landed uneventfully at Alejandro Velasco Astete International Airport (SPZO), Peru, its original destination. None of the passengers or crewmembers…
- [NTSB CEN11WA639](https://openairdocs.org/ntsb/CEN11WA639.md): Piper PA-31P · Ciudad Apodaca, Mexico · Accident · 2 fatal · Foreign investigation · Sep 12, 2011 · N69DJ · Destroyed
- [NTSB ERA11WA509](https://openairdocs.org/ntsb/ERA11WA509.md): Robinson R44 · Rio de Janeriro, Brazil · Accident · 2 fatal · Foreign investigation · Sep 10, 2011 · PR-CEC · Substantial damage
  > On September 10, 2011, about 2330 universal coordinated time, a Robinson R44 II, Brazilian registration PR-CEC, was substantially damaged when it impacted wooded terrain during an aerial photography flight, near Rio de Janeiro, Brazil. The foreign…
- [NTSB WPR11FA429](https://openairdocs.org/ntsb/WPR11FA429.md): Brewster LONG-EZ · Kanab, UT · Accident · 1 fatal · Field investigation · Final report · Sep 4, 2011 · N9DZ · Substantial damage
  > The pilot's loss of airplane control during cruise flight.
- [NTSB CEN11WA603](https://openairdocs.org/ntsb/CEN11WA603.md): Cessna TU206G · Sioux Lookout, Canada · Accident · 1 fatal · Foreign investigation · Aug 29, 2011 · N242SA · Substantial damage
- [NTSB CEN11CA662](https://openairdocs.org/ntsb/CEN11CA662.md): Piper PA-30 · Saguache, CO · Accident · No injuries · Data collection · Final report · Aug 26, 2011 · N75BA · Substantial damage
  > The pilot's failure to maintain airplane control during the aborted takeoff.
- [NTSB CEN11WA695](https://openairdocs.org/ntsb/CEN11WA695.md): Cessna 210K · (Atlantic Ocean) · Accident · 6 fatal · Class 5 · Foreign · Aug 19, 2011 · N8214M · Destroyed
- [NTSB ERA11LA501](https://openairdocs.org/ntsb/ERA11LA501.md): Piper PA-22-108 · Monmouth, ME · Accident · No injuries · Limited investigation · Final report · Aug 18, 2011 · N5048Z · Substantial damage
  > Operation of the airplane by a non-certificated pilot and his failure to maintain airplane control.
- [NTSB ANC11LA080](https://openairdocs.org/ntsb/ANC11LA080.md): Piper PA-18-150 · Cape Yakataga, AK · Accident · 2 fatal · Limited investigation · Final report · Aug 16, 2011 · N4205Z · Substantial damage
  > A collision into water during initial climb after takeoff for undetermined reasons.
- [NTSB WPR11WA351](https://openairdocs.org/ntsb/WPR11WA351.md): Robinson R22 · Fitzroy Crossing, Australia, Australia · Accident · 1 fatal · Foreign investigation · Jul 27, 2011 · VH-YOL · Substantial damage
  > On July 27, 2011, at 0930 universal coordinated time, a Robinson R-22 Beta, VH-YOL, registered to and operated by a private owner, collided with terrain near Fitzoy Crossing, Australia. The helicopter was substantially damaged and the pilot, the sole…
- [NTSB CEN11LA504](https://openairdocs.org/ntsb/CEN11LA504.md): Quasar Acft 214SL · Fort Worth, TX · Accident · No injuries · Limited investigation · Final report · Jul 22, 2011 · N89QL · Substantial damage
  > A fuel leak in the engine compartment, which resulted in an engine fire.
- [NTSB WPR11LA307](https://openairdocs.org/ntsb/WPR11LA307.md): Stinson 108-2 · Columbia, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 5, 2011 · N9351K · Substantial damage
  > The airplane’s failure to climb at a sufficient rate to clear trees and terrain beyond the end of the runway for reasons that could not be determined because postaccident examination did not reveal any mechanical malfunctions or failures that would have…
- [NTSB CEN11CA445](https://openairdocs.org/ntsb/CEN11CA445.md): Skytrails Lsa Predator · Coldspring, TX · Accident · Minor injuries · Data collection · Final report · Jul 4, 2011 · N5358Z · Substantial damage
  > The pilot's inadequate consideration of obstructions on his flight path and inability to maintain altitude following an unexplained loss of lift.
- [NTSB CEN11LA449](https://openairdocs.org/ntsb/CEN11LA449.md): Abbey Victor RV9-A · Leander, TX · Accident · Minor injuries · Limited investigation · Final report · Jun 30, 2011 · N59VA · Substantial damage
  > The partial loss of engine power for reasons that could not be determined because examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR11LA272](https://openairdocs.org/ntsb/WPR11LA272.md): Air Tractor AT-301 · Hogeland, MT · Accident · 1 fatal · Limited investigation · Final report · Jun 21, 2011 · N3661B · Substantial damage
  > Collision with the ground while maneuvering at low altitude for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN11LA385](https://openairdocs.org/ntsb/CEN11LA385.md): Wiley C W RV-6A · Colgate, OK · Accident · No injuries · Limited investigation · Final report · Jun 13, 2011 · N80WW · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB WPR11FA256](https://openairdocs.org/ntsb/WPR11FA256.md): Bellanca 17-31ATC · Ukiah, OR · Accident · 3 fatal · Field investigation · Final report · Jun 11, 2011 · N79BF · Substantial damage
  > The non-instrument-rated pilot's decision to conduct a visual flight rules flight over mountainous terrain into a region covered by clouds, which likely resulted in spatial disorientation and subsequent loss of airplane control.
- [NTSB CEN11WA382](https://openairdocs.org/ntsb/CEN11WA382.md): Air Tractor AT-502B · La Fora, Tiquisate, Guatemala · Accident · 1 fatal · Foreign investigation · Jun 11, 2011 · N502BB · Substantial damage
- [NTSB ERA11WA310](https://openairdocs.org/ntsb/ERA11WA310.md): Piper PA-34-200 · Sao Pedro, Brazil · Accident · 4 fatal · Foreign investigation · May 16, 2011 · PT-IFS · Destroyed
  > On May 16, 2011, about 0130 universal coordinated time, a Piper PA-34-200, Brazilian registration PT-IFS, was destroyed when it impacted hilly terrain under unknown circumstances near Sao Pedro, Sao Paulo, Brazil. The Brazilian certificated pilot and three…
- [NTSB ERA11WA305](https://openairdocs.org/ntsb/ERA11WA305.md): Cessna 210M · Breu Branco, Brazil · Accident · 3 fatal · Foreign investigation · May 14, 2011 · PR-HSM · Substantial damage
  > On May 14, 2011, about 1430 universal coordinated time, a Cessna 210M, Brazilian registration PR-HSM, was substantially damaged when it impacted wooded terrain under unknown circumstances, in a remote, dense forest near Breu Branco, Brazil. The foreign…
- [NTSB ERA11FA299](https://openairdocs.org/ntsb/ERA11FA299.md): Piper PA-22-150 · Benezette, PA · Accident · 1 fatal · Field investigation · Final report · May 13, 2011 · N7603D · Substantial damage
  > The pilot's loss of airplane control for reasons that could not be determined from the available evidence.
- [NTSB ERA11FA293](https://openairdocs.org/ntsb/ERA11FA293.md): Beech F33A · Tarentum, PA · Accident · Serious injuries · Field investigation · Final report · May 11, 2011 · N17825 · Substantial damage
  > The pilot's delay in aborting the takeoff, which resulted in a runway overrun. Contributing to the accident was the pilot's inadequate preflight planning and excessive loading of the airplane.
- [NTSB ANC11WA028](https://openairdocs.org/ntsb/ANC11WA028.md): Cessna 195A · Campbell River, Canada · Accident · 1 fatal · Foreign investigation · Apr 28, 2011 · N41X · Destroyed
- [NTSB CEN11LA308](https://openairdocs.org/ntsb/CEN11LA308.md): Piper PA-28-180 · Streetman, TX · Accident · Minor injuries · Limited investigation · Final report · Apr 25, 2011 · N6492J · Substantial damage
  > The airplane’s inability to establish a climb for undetermined reasons, which resulted in a collision with trees.
- [NTSB CEN11FA285](https://openairdocs.org/ntsb/CEN11FA285.md): Hawker-Beechcraft E-55 · De Queen, AR · Accident · 1 fatal · Field investigation · Final report · Apr 15, 2011 · N3959W · Substantial damage
  > The pilot’s loss of control during takeoff for undetermined reasons.
- [NTSB ERA11WA245](https://openairdocs.org/ntsb/ERA11WA245.md): Bell 206B · Santo Andre City, Brazil · Accident · 2 fatal · Foreign investigation · Apr 8, 2011 · PT-YMJ · Destroyed
  > On April 8, 2011, at 2030 coordinated universal time (1730 local time), a Bell 206B, Brazilian registration PT-YMJ, was destroyed when it impacted terrain at the 5,000-foot level of the Serra do Mar mountain range in Santo André, São Paulo, Brazil. The pilot…
- [NTSB ERA11WA251](https://openairdocs.org/ntsb/ERA11WA251.md): Eurocopter AS-355-F2 · Alto Alegre, Brazil · Accident · 3 fatal · Foreign investigation · Apr 6, 2011 · PT-HNA · Destroyed
  > On April 6, 2011, about 2225 coordinated universal time, a Eurocopter AS-355-F2, Brazilian registration PT-HNA, was destroyed when it impacted terrain near Alto Alegre, Brazil. The pilot and one passenger incurred minor injuries, and three passengers were…
- [NTSB WPR11WA176](https://openairdocs.org/ntsb/WPR11WA176.md): Piper PA-32R · Moree, Australia · Accident · 4 fatal · Foreign investigation · Mar 30, 2011 · VH-LKI · Substantial damage
  > The accident is under the jurisdiction of and is being investigated by the Australian Transport Safety Bureau.
- [NTSB ERA11FA214](https://openairdocs.org/ntsb/ERA11FA214.md): Aerostar S A YAK-52 · Palm Coast, FL · Accident · 1 fatal · Field investigation · Final report · Mar 26, 2011 · N808TD · Substantial damage
  > The pilot’s failure to recover from the nose-low descent during an aerobatic maneuver.
- [NTSB CEN11FA244](https://openairdocs.org/ntsb/CEN11FA244.md): Cessna 182M · Hot Springs, AR · Accident · 2 fatal · Field investigation · Final report · Mar 24, 2011 · N70922 · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB WPR11FA173](https://openairdocs.org/ntsb/WPR11FA173.md): Cessna P210 · Daggett, CA · Accident · 3 fatal · Field investigation · Final report · Mar 20, 2011 · N50MC · Substantial damage
  > The pilot's decision to conduct the flight into a region of reported moderate to severe turbulence and icing conditions, followed by a loss of airplane control and an aerodynamic spin from which the pilot did not recover.
- [NTSB ERA11WA189](https://openairdocs.org/ntsb/ERA11WA189.md): Cessna 182 · Calamar, Colombia · Accident · 1 fatal · Foreign investigation · Mar 14, 2011 · HK1084 · Substantial damage
  > On March 14, 2011, about 0815 universal coordinated time, a Cessna, 182N, Colombian registration, HK1084, operated by Transportes Aereos del Ariari, crashed while returning to Aerodromo Jorge E. Gonzalez- San Jose Guaviare (SKSJ), Calamar, Colombia, shortly…
- [NTSB DCA11WA024](https://openairdocs.org/ntsb/DCA11WA024.md): Raytheon Hawker · Sulaimanyia, Iraq · Accident · 7 fatal · Foreign investigation · Feb 4, 2011 · OD-SKY · Destroyed
  > On February 4, 2011 about 1449 UTC, OD-SKY, a Hawker Beechcraft HS-850XP, registered to Club Aviation S.A.L and operated by Sky Lounge services S.A.L., crashed during the initial takeoff climb at Suliamaniyah International Airport, Iraq. The 3 crew members…
- [NTSB ERA11WA143](https://openairdocs.org/ntsb/ERA11WA143.md): Beech 58 · Patrimonio Regina City, Brazil · Accident · 3 fatal · Foreign investigation · Jan 28, 2011 · PT-BOR · Substantial damage
  > On January 28, 2011, at 2047 coordinated universal time (1847 local time), a Beech 58, Brazilian registration PT-BOR, was substantially damaged when it impacted terrain near Patrimônio Regina City, Paraná, Brazil. The two pilots and the passenger were fatally…
- [NTSB CEN11WA151](https://openairdocs.org/ntsb/CEN11WA151.md): Cirrus Design SR20 · Santiago Atitlán, Guatemala · Accident · 1 fatal · Foreign investigation · Jan 10, 2011 · N431SR · Destroyed
- [NTSB DCA11WA069](https://openairdocs.org/ntsb/DCA11WA069.md): Boeing 727 · Urmia, Iran · Accident · No injuries · Foreign investigation · Jan 9, 2011 · EP-IRP · Destroyed
  > On January 9, 2011, an Iran Air Boeing B727-200, registration EP-IRP, crashed during missed approach to Orumiyeh Airport (OITR), Urmia, Iran. Of the 105 passengers and crew onboard, 78 were fataly injured and 27 received serious injuries. The airplane was…

## 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 year(c."eventDate") = 2011
  AND 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?year=2011

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