# 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 34 of 45 · 2,248 cases

## Cases, newest first

- [NTSB WPR11LA220](https://openairdocs.org/ntsb/WPR11LA220.md): MD Helicopter 369D · Columbia, CA · Accident · No injuries · Limited investigation · Final report · May 13, 2011 · N124AL · Substantial damage
  > The loss of power transmission to the main rotor for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation of the helicopter.
- [NTSB ERA11LA298](https://openairdocs.org/ntsb/ERA11LA298.md): Thrush S2R-T660 · Greenwood, MS · Accident · No injuries · Limited investigation · Final report · May 13, 2011 · N660KP · Substantial damage
  > A partial loss of engine power during low-altitude maneuvering for undetermined reasons.
- [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 CEN11LA335](https://openairdocs.org/ntsb/CEN11LA335.md): Grumman Acft ENG Cor-Schweizer G-164A · Bono, AR · Accident · No injuries · Limited investigation · Final report · May 9, 2011 · N8930H · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN11LA323](https://openairdocs.org/ntsb/CEN11LA323.md): Air Tractor AT-402A · Arriba, CO · Accident · Serious injuries · Limited investigation · Final report · May 5, 2011 · N5192F · Substantial damage
  > The pilot’s controlled flight into terrain for undetermined reasons.
- [NTSB ERA11LA282](https://openairdocs.org/ntsb/ERA11LA282.md): Pfouts Alfred L Senior Aero SPT D260 · Palm Coast, FL · Accident · No injuries · Limited investigation · Final report · May 4, 2011 · N705AP · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB CEN11FA319](https://openairdocs.org/ntsb/CEN11FA319.md): Thomas Europa · Shreveport, LA · Accident · 1 fatal · Field investigation · Final report · May 4, 2011 · N914KM · Substantial damage
  > The loss of aircraft control and subsequent impact with terrain for undetermined reasons.
- [NTSB CEN11LA315](https://openairdocs.org/ntsb/CEN11LA315.md): Hughes 269B · Edgerton, IN · Accident · No injuries · Limited investigation · Final report · Apr 29, 2011 · N9561F · Substantial damage
  > A loss of clearance between the tail rotor drive shaft and the tailboom bulkhead for undetermined reasons, which resulted in the overstress failure of the drive shaft.
- [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 WPR11LA209](https://openairdocs.org/ntsb/WPR11LA209.md): Cessna 182B · Colville, WA · Accident · No injuries · Limited investigation · Final report · Apr 23, 2011 · N8435T · Substantial damage
  > The partial loss of engine power during takeoff for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB WPR11LA207](https://openairdocs.org/ntsb/WPR11LA207.md): Davison RV-7A · Marsing, ID · Accident · No injuries · Limited investigation · Final report · Apr 23, 2011 · N59TD · Substantial damage
  > A loss of engine power during initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR11LA199](https://openairdocs.org/ntsb/WPR11LA199.md): Zenith CH-750 · Winchester, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 14, 2011 · N632DR · Substantial damage
  > A total loss of engine power during descent for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA11LA234](https://openairdocs.org/ntsb/ERA11LA234.md): Let L 33 Solo · New Castle, VA · Accident · 1 fatal · Limited investigation · Final report · Apr 10, 2011 · N286BA · Substantial damage
  > Pilot incapacitation shortly after takeoff for unknown reasons.
- [NTSB WPR11FA192](https://openairdocs.org/ntsb/WPR11FA192.md): Beech 35-B33 · Camarillo, CA · Accident · Serious injuries · Field investigation · Final report · Apr 9, 2011 · N460SR · Substantial damage
  > The loss of engine power during the landing approach for undetermined reasons.
- [NTSB CEN11LA311](https://openairdocs.org/ntsb/CEN11LA311.md): Mooney M20K · New Orleans, LA · Accident · No injuries · Limited investigation · Final report · Apr 7, 2011 · N305M · Substantial damage
  > A loss of electrical and engine power for undetermined reasons.
- [NTSB CEN11FA274](https://openairdocs.org/ntsb/CEN11FA274.md): Beech A36 · Monaville, TX · Accident · Minor injuries · Field investigation · Final report · Apr 7, 2011 · N24192 · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB CEN11LA262](https://openairdocs.org/ntsb/CEN11LA262.md): Piper PA-30 · Ruidoso, NM · Accident · No injuries · Limited investigation · Final report · Apr 3, 2011 · N7849Y · Substantial damage
  > The left engine's intermittent loss of power during initial climb for undetermined reasons. Contributing to the accident was the high density altitude at the time of the accident.
- [NTSB WPR11LA180](https://openairdocs.org/ntsb/WPR11LA180.md): William Wright Avid Flyer · Cedar City, UT · Accident · Minor injuries · Limited investigation · Final report · Apr 1, 2011 · N613HH · Substantial damage
  > A loss of engine power during initial climb for reasons that could not be determined because postaccident examination did not reveal a specific anomaly that would have precluded normal operation.
- [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 CEN11LA239](https://openairdocs.org/ntsb/CEN11LA239.md): Glasflugel Standard Libelle · Wellington, CO · Accident · 1 fatal · Limited investigation · Final report · Mar 20, 2011 · N99AE · Substantial damage
  > The pilot's loss of glider control due to impairment or incapacitation caused by an episode of ventricular tachycardia.
- [NTSB ERA11LA200](https://openairdocs.org/ntsb/ERA11LA200.md): Piper PA-18A 150 · Hollywood, FL · Accident · No injuries · Limited investigation · Final report · Mar 19, 2011 · N9692D · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB ERA11LA197](https://openairdocs.org/ntsb/ERA11LA197.md): Burr Andrew E Xiv Rotorway Exec 162F · Lincoln, AL · Accident · No injuries · Limited investigation · Final report · Mar 19, 2011 · N192AB · Substantial damage
  > A total loss of engine power during cruise flight for undetermined reasons.
- [NTSB ERA11LA196](https://openairdocs.org/ntsb/ERA11LA196.md): Piper PA-28-140 · Ocean Springs, MS · Accident · Serious injuries · Limited investigation · Final report · Mar 19, 2011 · N7330J · Substantial damage
  > The airplane's overweight condition due to the pilot's improper weight and balance calculation that resulted in the airplane's inability to maintain altitude.
- [NTSB CEN11LA237](https://openairdocs.org/ntsb/CEN11LA237.md): Costruzioni Aeronautiche Tecna P2004 Bravo · Austin, TX · Accident · No injuries · Limited investigation · Final report · Mar 18, 2011 · N141AG · Substantial damage
  > The loss of engine power due to fuel starvation for undetermined reasons.
- [NTSB CEN11IA234](https://openairdocs.org/ntsb/CEN11IA234.md): Embraer EMB-145XR · Akron, OH · Incident · No injuries · Incident investigation · Final report · Mar 18, 2011 · N11187 · Minor damage
  > The uncommanded left deflection of the airplane's nosewheel for reasons that could not be determined because postincident examination of the nosewheel steering system did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA11LA190](https://openairdocs.org/ntsb/ERA11LA190.md): Cessna 182P · Alachua, FL · Accident · No injuries · Limited investigation · Final report · Mar 15, 2011 · N430ML · Substantial damage
  > A loss of engine power due to the failure of the camshaft gear teeth and crankshaft gear teeth for undetermined reasons.
- [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 WPR11FA163](https://openairdocs.org/ntsb/WPR11FA163.md): Sikorsky S-58ET · El Segundo, CA · Accident · Serious injuries · Field investigation · Final report · Mar 13, 2011 · N33602 · Substantial damage
  > A partial loss of engine power and the failure of the external hook to release the load for undetermined reasons.
- [NTSB CEN11FA228](https://openairdocs.org/ntsb/CEN11FA228.md): Waco UPF-7 · Brownsville, TX · Accident · Serious injuries · Field investigation · Final report · Mar 12, 2011 · N30136 · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB WPR11LA160](https://openairdocs.org/ntsb/WPR11LA160.md): Piper PA-28R-200 · Agoura Hills, CA · Accident · No injuries · Limited investigation · Final report · Mar 11, 2011 · N75224 · Substantial damage
  > The loss of engine power during cruise flight for undetermined reasons.
- [NTSB CEN11WA691](https://openairdocs.org/ntsb/CEN11WA691.md): Piper PA46-500TP · Lausanne, Switzerland · Accident · No injuries · Foreign investigation · Mar 8, 2011 · N747AW · Substantial damage
  > On March 8, 2011, at 1430 coordinated universal time, a Piper PA 46-500TP, N747AW, was substantially damaged while landing at the Lausanne-La Blécherette Airport (LSGL), Lausanne, Switzerland. Visual meteorological conditions prevailed at the time of the…
- [NTSB CEN11LA219](https://openairdocs.org/ntsb/CEN11LA219.md): Aeronca 7AC · Delphi, IN · Accident · No injuries · Limited investigation · Final report · Mar 4, 2011 · N82429 · Substantial damage
  > The pilot's loss of directional control, resulting in a runway excursion, and the subsequent separation of the left main landing gear for undetermined reasons.
- [NTSB ERA11LA175](https://openairdocs.org/ntsb/ERA11LA175.md): Bell 206-L4 · Birmingham, AL · Accident · No injuries · Limited investigation · Final report · Mar 2, 2011 · N154MW · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB CEN11WA214](https://openairdocs.org/ntsb/CEN11WA214.md): Cessna P210 · Armentières sur Avre, France · Accident · 2 fatal · Foreign investigation · Feb 26, 2011 · F-GMGF · Destroyed
  > Under the jurisdiction and control of the French government.
- [NTSB CEN11LA204](https://openairdocs.org/ntsb/CEN11LA204.md): Cessna 172N · Andrews, TX · Accident · Serious injuries · Limited investigation · Final report · Feb 25, 2011 · N739BL · Substantial damage
  > The pilot's failure to maintain adequate airspeed during an emergency descent, following a loss of engine power, which resulted in an inadvertent stall.
- [NTSB WPR11LA143](https://openairdocs.org/ntsb/WPR11LA143.md): Mooney M20F · Nephi, UT · Accident · No injuries · Limited investigation · Final report · Feb 23, 2011 · N891X · Substantial damage
  > The failure of the nose gear during landing for reasons that could not be determined due to postaccident damage.
- [NTSB CEN11LA200](https://openairdocs.org/ntsb/CEN11LA200.md): Hughes 369D · Henryetta, OK · Accident · No injuries · Limited investigation · Final report · Feb 23, 2011 · N112AS · Substantial damage
  > Failure of the cyclic control system for reasons undetermined.
- [NTSB CEN11FA220](https://openairdocs.org/ntsb/CEN11FA220.md): Mooney M20J · Romeoville, IL · Accident · No injuries · Field investigation · Final report · Feb 19, 2011 · N888DF · Substantial damage
  > The collapse of the left main landing gear during the landing roll for undetermined reasons.
- [NTSB ERA11LA149](https://openairdocs.org/ntsb/ERA11LA149.md): Cessna 150H · Jonesborough, TN · Accident · No injuries · Limited investigation · Final report · Feb 17, 2011 · N7237S · Substantial damage
  > A partial loss of engine power during initial climb for undetermined reasons.
- [NTSB CEN11LA189](https://openairdocs.org/ntsb/CEN11LA189.md): Bellanca 14-19-2 · Hueco Tanks, TX · Accident · No injuries · Limited investigation · Final report · Feb 14, 2011 · N7655B · Substantial damage
  > The loss of engine power for reasons undetermined.
- [NTSB CEN11FA193](https://openairdocs.org/ntsb/CEN11FA193.md): Gulfstream Aerospace GV-SP · Appleton, WI · Accident · No injuries · Field investigation · Final report · Feb 14, 2011 · N535GA · Substantial damage
  > The pilot flying's (PF) decision to land on a shorter-than-recommended runway with a known left hydraulic system failure rather than go around as suggested by the pilot-not-flying, his failure to immediately apply emergency brakes following the detection of…
- [NTSB ERA11LA141](https://openairdocs.org/ntsb/ERA11LA141.md): Piper PA-31-350 · Baltimore, MD · Accident · No injuries · Limited investigation · Final report · Feb 11, 2011 · N31NW · Substantial damage
  > An in-flight overload failure of the left elevator inboard balance weight rib for undetermined reasons.
- [NTSB CEN11LA186](https://openairdocs.org/ntsb/CEN11LA186.md): Gadbois Eugene W Apex CROSS-5 · Lago Vista, TX · Accident · Minor injuries · Limited investigation · Final report · Feb 11, 2011 · N751EW · Substantial damage
  > The simultaneous loss of engine and electrical power after takeoff for undetermined reasons.
- [NTSB CEN11IA235](https://openairdocs.org/ntsb/CEN11IA235.md): Schlichtman Stol CH750 · Cassville, MO · Incident · No injuries · Incident investigation · Final report · Feb 6, 2011 · N904MS · Minor damage
  > The fatigue failure of the propeller hub retaining bolts due to insufficient clamping force.
- [NTSB WPR11LA113](https://openairdocs.org/ntsb/WPR11LA113.md): Piper PA-30 · Big Bear City, CA · Accident · Serious injuries · Limited investigation · Final report · Jan 30, 2011 · N64RJ · Substantial damage
  > The pilot’s failure to maintain the minimum single-engine control speed while on final approach for landing. Contributing to the accident was the pilot's decision to fly with a known deficiency in one engine and a loss of power in that engine for reasons that…
- [NTSB CEN11LA161](https://openairdocs.org/ntsb/CEN11LA161.md): Piper PA-28-235 · Matador, TX · Accident · Minor injuries · Limited investigation · Final report · Jan 26, 2011 · N9478W · Substantial damage
  > The loss of engine power during initial climb for undetermined reasons.
- [NTSB ERA11LA114](https://openairdocs.org/ntsb/ERA11LA114.md): Diamond Aircraft Ind DA 20-A1 · Pompano Beach, FL · Accident · No injuries · Limited investigation · Final report · Jan 14, 2011 · N840DF · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB ERA11LA112](https://openairdocs.org/ntsb/ERA11LA112.md): Beech A23-24 · Venice, FL · Accident · Serious injuries · Limited investigation · Final report · Jan 12, 2011 · N3670Q · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB WPR11LA095](https://openairdocs.org/ntsb/WPR11LA095.md): Piper PA-22-150 · Lopez, WA · Accident · No injuries · Limited investigation · Final report · Jan 9, 2011 · N5850D · Substantial damage
  > A loss of engine power during initial climb for undetermined reasons.
- [NTSB CEN11WA159](https://openairdocs.org/ntsb/CEN11WA159.md): Beech B200 · Montpellier, France · Incident · Minor injuries · Foreign investigation · Jan 7, 2011 · F-GMPO · Minor damage
  > The accident investigation is under the jurisdiction and control of the French government. This report is for informational purposes only and contains only information released by or obtained from the French government or Bureau d’Enquêtes et d’Analyses.…

Next page: https://openairdocs.org/ntsb-findings/05000000/cases.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 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=34

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