# 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 33 of 45 · 2,248 cases

## Cases, newest first

- [NTSB CEN11LA552](https://openairdocs.org/ntsb/CEN11LA552.md): Cessna T210N · Amarillo, TX · Accident · Serious injuries · Limited investigation · Final report · Aug 5, 2011 · N829MB · Substantial damage
  > A loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN11FA562](https://openairdocs.org/ntsb/CEN11FA562.md): Air Tractor AT-301 · Nekoosa, WI · Accident · No injuries · Field investigation · Final report · Aug 4, 2011 · N4345S · Substantial damage
  > A total loss of engine power during initial climb for undetermined reasons.
- [NTSB WPR11LA366](https://openairdocs.org/ntsb/WPR11LA366.md): Ayres S2R-600 · Hazelton, ID · Accident · No injuries · Limited investigation · Final report · Aug 3, 2011 · N4021S · Substantial damage
  > Partial loss of engine power for undetermined reasons.
- [NTSB CEN11LA543](https://openairdocs.org/ntsb/CEN11LA543.md): Aero Commander S2R · Washington, IA · Accident · No injuries · Limited investigation · Final report · Aug 3, 2011 · N1735S · Substantial damage
  > The loss of engine power 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.
- [NTSB ERA11LA434](https://openairdocs.org/ntsb/ERA11LA434.md): Nord Stampe SV4C · Rhinebeck, NY · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 2011 · N51SV · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB CEN11WA592](https://openairdocs.org/ntsb/CEN11WA592.md): Socata TB10 · Kufstein, Austria · Accident · 1 fatal · Foreign investigation · Jul 30, 2011 · PH-RCV · Substantial damage
  > Under the jurisdiction and control of the Austrian government.
- [NTSB CEN11LA541](https://openairdocs.org/ntsb/CEN11LA541.md): Weatherly 620B · Hettinger, ND · Accident · No injuries · Limited investigation · Final report · Jul 30, 2011 · N90181 · Substantial damage
  > Internal failure of the engine for undetermined reasons.
- [NTSB ERA11LA427](https://openairdocs.org/ntsb/ERA11LA427.md): TL Ultralight Sro Sting S3 · Sarasota, FL · Accident · 1 fatal · Limited investigation · Final report · Jul 29, 2011 · N2442 · Substantial damage
  > The inability of the pilot-in-command (PIC) to recover from an inadvertent spin following a stall demonstration for reasons that could not be determined because aircraft and engine examinations did not reveal any anomalies that would have precluded recovery…
- [NTSB ERA11FA426](https://openairdocs.org/ntsb/ERA11FA426.md): Taylorcraft BL-65 · Winterville, NC · Accident · 1 fatal · Field investigation · Final report · Jul 28, 2011 · N24369 · Substantial damage
  > A loss of airplane control for undetermined reasons as the autopsy was unable to reveal any definitive conditions that would have led to the loss of control.
- [NTSB CEN11FA505](https://openairdocs.org/ntsb/CEN11FA505.md): Piper J3L-65 · Van Dyne, WI · Accident · 2 fatal · Field investigation · Final report · Jul 25, 2011 · N81BF · Substantial damage
  > The pilot’s inability to maintain airplane control while maneuvering for reasons that could not be determined from the available evidence.
- [NTSB ANC11LA068](https://openairdocs.org/ntsb/ANC11LA068.md): Cessna 185 · Kenai, AK · Accident · No injuries · Limited investigation · Final report · Jul 25, 2011 · N9852X · Substantial damage
  > The loss of engine power for an undetermined reason, resulting in the ditching and sinking of the airplane in ocean waters.
- [NTSB ERA11LA417](https://openairdocs.org/ntsb/ERA11LA417.md): Ryan Aeronautical ST3KR · Sagaponack, NY · Accident · Serious injuries · Limited investigation · Final report · Jul 24, 2011 · N2ER · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN11LA522](https://openairdocs.org/ntsb/CEN11LA522.md): Cessna 172B · Middleton, WI · Accident · No injuries · Limited investigation · Final report · Jul 23, 2011 · N7624X · Substantial damage
  > The total loss of engine power during climb after takeoff for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN11LA544](https://openairdocs.org/ntsb/CEN11LA544.md): Air Tractor AT802 · Ullin, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 22, 2011 · N396LA · Substantial damage
  > The loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN11LA499](https://openairdocs.org/ntsb/CEN11LA499.md): Air Tractor AT-502 · Fergus Falls, MN · Accident · No injuries · Limited investigation · Final report · Jul 22, 2011 · N1516G · Substantial damage
  > The total loss of engine power for reasons that could not be determined because the airplane came to rest inverted in water.
- [NTSB ERA11LA411](https://openairdocs.org/ntsb/ERA11LA411.md): Cessna 150M · Elizabethtown, KY · Accident · No injuries · Limited investigation · Final report · Jul 20, 2011 · N8576U · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB CEN11LA487](https://openairdocs.org/ntsb/CEN11LA487.md): Ayres S2R · Burlington, CO · Accident · No injuries · Limited investigation · Final report · Jul 18, 2011 · N70216 · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB ANC11FA065](https://openairdocs.org/ntsb/ANC11FA065.md): Piper PA-12 · Delta, AK · Accident · 1 fatal · Field investigation · Final report · Jul 17, 2011 · N92770 · Substantial damage
  > The pilot's decision to make a low-altitude turn back to the airport following a loss of engine power, which resulted in an aerodynamic stall and loss of control. Contributing to the severity of the pilot's injuries was the separation of the pilot's seat…
- [NTSB CEN11LA488](https://openairdocs.org/ntsb/CEN11LA488.md): Dixon Volksplane VP-1 · Jackson, MI · Accident · Minor injuries · Limited investigation · Final report · Jul 16, 2011 · N341MD · Substantial damage
  > A partial loss of engine power during initial climb after takeoff for undetermined reasons.
- [NTSB CEN11LA490](https://openairdocs.org/ntsb/CEN11LA490.md): Darrow Stephen AL-6 · Peyton, CO · Accident · No injuries · Limited investigation · Final report · Jul 13, 2011 · N61262 · Substantial damage
  > The loss of engine power during the descent for reasons that could not be determined because a thorough examination of the engine could not be completed due to the remote accident site.
- [NTSB ANC11LA060](https://openairdocs.org/ntsb/ANC11LA060.md): Sonex / John D. McCarter Waiex · Sterling, AK · Accident · Serious injuries · Limited investigation · Final report · Jul 7, 2011 · N18YX · Substantial damage
  > The pilot's failure to maintain sufficient airspeed to avoid an aerodynamic stall following a loss of engine power for undetermined reasons.
- [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 ERA11LA400](https://openairdocs.org/ntsb/ERA11LA400.md): Fessenden Alfred Expermental RV-4 · Fort Drum, FL · Accident · No injuries · Limited investigation · Final report · Jul 4, 2011 · N3226N · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB ERA11FA374](https://openairdocs.org/ntsb/ERA11FA374.md): Binkley Richard Sonex · Calhoun, GA · Accident · 1 fatal · Field investigation · Final report · Jul 2, 2011 · N6PX · Substantial damage
  > The total loss of engine power for reasons that could not be determined because postimpact fire damage precluded a thorough examination of the engine.
- [NTSB CEN11LA455](https://openairdocs.org/ntsb/CEN11LA455.md): Couvillion S-17 · Toledo, OH · Accident · No injuries · Limited investigation · Final report · Jul 1, 2011 · N433GC · Substantial damage
  > The loss of control during initial climb for undetermined reasons, which resulted in a hard landing.
- [NTSB ERA11LA399](https://openairdocs.org/ntsb/ERA11LA399.md): Cessna 182K · Stevensville, MD · Accident · No injuries · Limited investigation · Final report · Jun 30, 2011 · N2888R · Substantial damage
  > A total loss of engine power during initial climb for undetermined reasons.
- [NTSB ERA11CA373](https://openairdocs.org/ntsb/ERA11CA373.md): Leatherman Karl L Zodiac CH 601 HDS · Gray Court, SC · Accident · No injuries · Data collection · Final report · Jun 30, 2011 · N67KL · Substantial damage
  > The total loss of engine power due to the failure of the radiator coolant supply fitting.
- [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 CEN11LA452](https://openairdocs.org/ntsb/CEN11LA452.md): Cessna A188A · Estelline, SD · Accident · Minor injuries · Limited investigation · Final report · Jun 28, 2011 · N1588M · Substantial damage
  > The pilot’s failure to maintain control of the airplane during takeoff for undetermined reasons because the pilot did not recall the accident.
- [NTSB WPR11LA291](https://openairdocs.org/ntsb/WPR11LA291.md): Richard Challenger II · Moses Lake, WA · Accident · Serious injuries · Limited investigation · Final report · Jun 27, 2011 · N9103L · Substantial damage
  > A loss of engine power during the initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR11LA284](https://openairdocs.org/ntsb/WPR11LA284.md): Cessna 172S · Palo Alto, CA · Accident · No injuries · Limited investigation · Final report · Jun 24, 2011 · N222MF · Substantial damage
  > A total loss of engine power for undetermined reasons during the landing approach over unsuitable terrain.
- [NTSB WPR11LA278](https://openairdocs.org/ntsb/WPR11LA278.md): Air Tractor AT-502 · Blackfoot, ID · Accident · No injuries · Limited investigation · Final report · Jun 21, 2011 · N1515P · Substantial damage
  > A partial loss of engine power during takeoff for undetermined reasons.
- [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 CEN11WA407](https://openairdocs.org/ntsb/CEN11WA407.md): Piper PA-39 · Mont Agel, France · Accident · 2 fatal · Foreign investigation · Jun 17, 2011 · G-AYZE · Destroyed
  > Under the jurisdiction and control of the French government.
- [NTSB ERA11LA342](https://openairdocs.org/ntsb/ERA11LA342.md): Grumman American Avn. AA-5A · Linden, NC · Accident · Minor injuries · Limited investigation · Final report · Jun 14, 2011 · N8476B · Substantial damage
  > A partial loss of engine power during initial climb for undetermined reasons.
- [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 CEN11WA394](https://openairdocs.org/ntsb/CEN11WA394.md): American Blimp A60PLUS · Reichelheim, Germany · Accident · 1 fatal · Foreign investigation · Jun 12, 2011 · G-TLEL · Substantial damage
  > Under the jurisdiction and control of the German government.
- [NTSB CEN11LA484](https://openairdocs.org/ntsb/CEN11LA484.md): Schweizer G-164B · Cash, AR · Accident · No injuries · Limited investigation · Final report · Jun 11, 2011 · N3629C · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN11LA381](https://openairdocs.org/ntsb/CEN11LA381.md): Bellanca 17-30A · Canton, TX · Accident · Minor injuries · Limited investigation · Final report · Jun 8, 2011 · N93650 · Substantial damage
  > The loss of fuel pressure for undetermined reasons, which resulted in a loss of engine power.
- [NTSB WPR11LA246](https://openairdocs.org/ntsb/WPR11LA246.md): Scottish Series 100 MDL 101 · Chandler, AZ · Accident · No injuries · Limited investigation · Final report · Jun 3, 2011 · N101MY · Substantial damage
  > A loss of engine power 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 ERA11LA325](https://openairdocs.org/ntsb/ERA11LA325.md): Clamar Floats CA-4 · Merritt Island, FL · Accident · Minor injuries · Limited investigation · Final report · Jun 3, 2011 · N434JC · Substantial damage
  > The loss of engine power during takeoff for reasons that could not be determined because a postaccident examination could not be performed before the airplane was disassembled.
- [NTSB WPR11LA253](https://openairdocs.org/ntsb/WPR11LA253.md): Cessna A188B · Pine Bluffs, WY · Accident · No injuries · Limited investigation · Final report · Jun 2, 2011 · N9496G · Substantial damage
  > A partial loss of engine power during takeoff for reasons that could not be determined because postaccident examination did not reveal any mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN11LA388](https://openairdocs.org/ntsb/CEN11LA388.md): Cessna 172 · Ironton, OH · Accident · Minor injuries · Limited investigation · Final report · May 28, 2011 · N5663R · Substantial damage
  > The total loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN11LA365](https://openairdocs.org/ntsb/CEN11LA365.md): Boeing A75N1 (PT17) · Freemont, MI · Accident · Minor injuries · Limited investigation · Final report · May 27, 2011 · N60147 · Substantial damage
  > The pilot’s failure to attain a positive climb rate following takeoff for reasons that could not be determined because the propeller was not provided for further examination. Contributing to the accident was the pilot's impairment from alcohol.
- [NTSB CEN11LA356](https://openairdocs.org/ntsb/CEN11LA356.md): Bell 206 · Walton, KS · Accident · Minor injuries · Limited investigation · Final report · May 26, 2011 · N1815 · Substantial damage
  > A loss of engine power for undetermined reasons because postaccident examination of the airframe and engine revealed no anomalies.
- [NTSB ERA11FA312](https://openairdocs.org/ntsb/ERA11FA312.md): Beech 58 · Murphy, NC · Accident · 4 fatal · Field investigation · Final report · May 25, 2011 · N77AR · Substantial damage
  > An in-flight fire that mostly likely occurred in the right front cockpit area behind the instrument panel and below the glare shield; the origin of the fire could not be determined because of the extensive fire damage.
- [NTSB CEN11LA361](https://openairdocs.org/ntsb/CEN11LA361.md): Flournoy Martin R Flournoy MR S1S · Colorado Springs, CO · Accident · No injuries · Limited investigation · Final report · May 22, 2011 · N457CF · Substantial damage
  > The pilot’s loss of directional control during the landing rollout due to failure of the tailwheel assembly for undetermined reasons.
- [NTSB CEN11LA364](https://openairdocs.org/ntsb/CEN11LA364.md): Piper PA30 · Phillipsburg, OH · Accident · Minor injuries · Limited investigation · Final report · May 21, 2011 · N7248Y · Substantial damage
  > The pilot’s failure to maintain directional control during takeoff following a loss of left engine power for undetermined reasons.
- [NTSB CEN11LA350](https://openairdocs.org/ntsb/CEN11LA350.md): Piper PA-22-160 · Frederick, OK · Accident · Serious injuries · Limited investigation · Final report · May 20, 2011 · N8957D · Substantial damage
  > An in-flight fire for undetermined reasons.
- [NTSB ERA11LA301](https://openairdocs.org/ntsb/ERA11LA301.md): Leigh S-6 Coyote II · New Kent, VA · Accident · No injuries · Limited investigation · Final report · May 15, 2011 · N929RL · Substantial damage
  > A total loss of engine power for undetermined reasons.

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

## 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=33

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