# 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 36 of 45 · 2,248 cases

## Cases, newest first

- [NTSB ERA10LA499](https://openairdocs.org/ntsb/ERA10LA499.md): Bell OH-58A · Taylorsville, MS · Accident · Serious injuries · Limited investigation · Final report · Sep 24, 2010 · N132HD · Substantial damage
  > A total loss of engine power while maneuvering at low altitude for undetermined reasons.
- [NTSB CEN10LA571](https://openairdocs.org/ntsb/CEN10LA571.md): Ca Tecnam P2004 Bravo · Mason, MI · Accident · Serious injuries · Limited investigation · Final report · Sep 17, 2010 · N508LM · Substantial damage
  > A total loss of engine power for undetermined reasons, which resulted in a forced landing to a bean field.
- [NTSB CEN10CA582](https://openairdocs.org/ntsb/CEN10CA582.md): Air Tractor AT-301 · Atkins, AR · Accident · No injuries · Data collection · Final report · Sep 17, 2010 · N2309F · Substantial damage
  > A partial loss of engine power during low-altitude flight for undetermined reasons.
- [NTSB WPR10LA456](https://openairdocs.org/ntsb/WPR10LA456.md): Savage Savage-Cozy · Aurora, OR · Accident · Serious injuries · Limited investigation · Final report · Sep 12, 2010 · N9699 · Substantial damage
  > The pilot’s failure to maintain control of the airplane following a loss of engine power in the traffic pattern; the cause of the loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not…
- [NTSB WPR10LA464](https://openairdocs.org/ntsb/WPR10LA464.md): Hughes OH-6A · Majuro (Pacific Ocean) · Accident · 1 fatal · Limited investigation · Final report · Sep 11, 2010 · N74LB · Substantial damage
  > A loss of helicopter control for undetermined reasons.
- [NTSB ANC10LA084](https://openairdocs.org/ntsb/ANC10LA084.md): Piper PA-20 · South Naknek, AK · Accident · No injuries · Limited investigation · Final report · Sep 11, 2010 · N7414K · Substantial damage
  > The loss of engine power during cruise flight for an undetermined reason, resulting in an emergency landing and collision with terrain.
- [NTSB ERA10LA474](https://openairdocs.org/ntsb/ERA10LA474.md): Ayres S2R-G10 · Doerun, GA · Accident · No injuries · Limited investigation · Final report · Sep 10, 2010 · N2312Y · Substantial damage
  > A partial loss of engine power for undetermined reasons. Contributing to the accident was the pilot's failure to select an adequate forced landing site and his excess speed during the landing.
- [NTSB CEN10LA531](https://openairdocs.org/ntsb/CEN10LA531.md): Piper PA-28-161 · Buchanan, MI · Accident · No injuries · Limited investigation · Final report · Sep 9, 2010 · N3560B · Substantial damage
  > A failure of the engine's No. 3 and No. 4 cylinder valve lifters for undetermined reasons, which resulted in a total loss of engine power.
- [NTSB WPR10LA452](https://openairdocs.org/ntsb/WPR10LA452.md): Aerospatiale SA315 · Winters, CA · Accident · No injuries · Limited investigation · Final report · Sep 7, 2010 · N17285 · Substantial damage
  > A 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 WPR10FA449](https://openairdocs.org/ntsb/WPR10FA449.md): Piper PA-32RT-300 · Las Vegas, NV · Accident · 2 fatal · Field investigation · Final report · Sep 6, 2010 · N36072 · Substantial damage
  > The pilot's inability to maintain a positive rate of climb after takeoff for undetermined reasons.
- [NTSB CEN10WA534](https://openairdocs.org/ntsb/CEN10WA534.md): Cessna 208 · Pointe a Pitre, Guadeloupe · Accident · Minor injuries · Foreign investigation · Sep 5, 2010 · F-OIXZ · Substantial damage
  > On September 5, 2010, at 1919 coordinated universal time, a Cessna 208B, French registered F-OIXZ, operated by Tropic Airlines, was substantially damaged during a forced landing near Pointe a Pitre, Guadeloupe. Visual meteorological conditions prevailed at…
- [NTSB CEN10CA542](https://openairdocs.org/ntsb/CEN10CA542.md): Schempp-Hirth Standard Cirrus · Moriarty, NM · Accident · Minor injuries · Data collection · Final report · Sep 5, 2010 · N4664 · Substantial damage
  > The inadvertent opening of the cockpit canopy for undetermined reasons.
- [NTSB ERA10LA463](https://openairdocs.org/ntsb/ERA10LA463.md): Quicksilver MX-2 · Lake City, FL · Accident · Minor injuries · Limited investigation · Final report · Sep 2, 2010 · N7108Z · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB CEN10CA517](https://openairdocs.org/ntsb/CEN10CA517.md): Beech D35 · Guymon, OK · Accident · Minor injuries · Data collection · Final report · Sep 1, 2010 · N3446B · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN10LA512](https://openairdocs.org/ntsb/CEN10LA512.md): Cessna 210 · Houma, LA · Accident · Minor injuries · Limited investigation · Final report · Aug 31, 2010 · N210PR · Substantial damage
  > The pilot’s improper fuel management, which resulted in a loss of engine power due to fuel exhaustion.
- [NTSB ERA10LA453](https://openairdocs.org/ntsb/ERA10LA453.md): Cessna 120 · Rockland, ME · Accident · No injuries · Limited investigation · Final report · Aug 29, 2010 · N2493N · Destroyed
  > The loss of engine power for undetermined reasons.
- [NTSB CEN10CA510](https://openairdocs.org/ntsb/CEN10CA510.md): Grumman Acft ENG Cor-Schweizer G-164B · Basile, LA · Accident · No injuries · Data collection · Final report · Aug 27, 2010 · N63E · Substantial damage
  > The loss of directional control during landing due to failure of the right brake for undetermined reasons.
- [NTSB WPR10FA423](https://openairdocs.org/ntsb/WPR10FA423.md): Cessna 182 · Ojai, CA · Accident · Minor injuries · Field investigation · Final report · Aug 24, 2010 · N3850D · Substantial damage
  > A 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 CEN10LA524](https://openairdocs.org/ntsb/CEN10LA524.md): Piper PA-46-350P · Greeley, CO · Accident · No injuries · Limited investigation · Final report · Aug 24, 2010 · N4167A · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN10CA500](https://openairdocs.org/ntsb/CEN10CA500.md): Cessna 150K · Gaylord, MI · Accident · Minor injuries · Data collection · Final report · Aug 24, 2010 · N6032G · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB WPR10LA424](https://openairdocs.org/ntsb/WPR10LA424.md): Grumman American Avn. AA-5A · Lakeview, OR · Accident · No injuries · Limited investigation · Final report · Aug 22, 2010 · N26118 · Substantial damage
  > A partial loss of engine power during the initial climb due to a stuck exhaust valve.
- [NTSB ERA10FA435](https://openairdocs.org/ntsb/ERA10FA435.md): North Wing Scout X-C · Amherst, VA · Accident · 2 fatal · Field investigation · Final report · Aug 21, 2010 · N417JN · Substantial damage
  > The pilot's loss of aircraft control for an undetermined reason.
- [NTSB ANC10FA100](https://openairdocs.org/ntsb/ANC10FA100.md): Dehavilland DHC-2 · Katmai National Park, AK · Accident · 4 fatal · Field investigation · Final report · Aug 21, 2010 · N9313Z · Substantial damage
  > Undetermined.
- [NTSB ERA10LA434](https://openairdocs.org/ntsb/ERA10LA434.md): Cessna 152 · Hollywood, FL · Accident · No injuries · Limited investigation · Final report · Aug 20, 2010 · N93588 · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB WPR10LA413](https://openairdocs.org/ntsb/WPR10LA413.md): Grumman Acft ENG Cor-Schweizer G-164B · Buckeye, AZ · Accident · Serious injuries · Limited investigation · Final report · Aug 19, 2010 · N6607Q · Substantial damage
  > An increase in engine rpm and vibration, which resulted in an aborted takeoff and runway excursion. The reason for the increased engine rpm and vibration could not be determined because of postaccident fire damage.
- [NTSB CEN10LA494](https://openairdocs.org/ntsb/CEN10LA494.md): Cessna 310F · LaGrange, IN · Accident · No injuries · Limited investigation · Final report · Aug 19, 2010 · N6762X · Substantial damage
  > The pilot did not maintain altitude due to his distracted attention to a vibration of unknown origin.
- [NTSB ANC10LA074](https://openairdocs.org/ntsb/ANC10LA074.md): Cessna U206G · Homer, AK · Accident · No injuries · Limited investigation · Final report · Aug 19, 2010 · N9815M · Substantial damage
  > The loss of engine power for an undetermined reason, resulting in an off-airport emergency landing and subsequent nose over.
- [NTSB CEN10LA496](https://openairdocs.org/ntsb/CEN10LA496.md): Cessna 182T · Mosby, MT · Accident · No injuries · Limited investigation · Final report · Aug 18, 2010 · N1142U · Substantial damage
  > A partial loss of engine power for undetermined reasons during an en route climb.
- [NTSB CEN10LA483](https://openairdocs.org/ntsb/CEN10LA483.md): Cirrus Design SR22 · Idabel, OK · Accident · No injuries · Limited investigation · Final report · Aug 16, 2010 · N513CM · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB ERA10LA426](https://openairdocs.org/ntsb/ERA10LA426.md): Cessna 172N · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 2010 · N44WH · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB ERA10LA423](https://openairdocs.org/ntsb/ERA10LA423.md): Beech C24R · Eastover, NC · Accident · Serious injuries · Limited investigation · Final report · Aug 15, 2010 · N792Y · Substantial damage
  > The uncommanded retraction of the nose gear for undetermined reasons and the pilot's improper decision to continue the takeoff after the propeller began to contact the ground.
- [NTSB CEN10LA482](https://openairdocs.org/ntsb/CEN10LA482.md): Cessna T210M · Put-in-Bay, OH · Accident · Minor injuries · Limited investigation · Final report · Aug 13, 2010 · N14AW · Substantial damage
  > A total loss of engine power while on final approach for undetermined reasons.
- [NTSB CEN10LA492](https://openairdocs.org/ntsb/CEN10LA492.md): Infinity Infinity · Little Rock, AR · Accident · Serious injuries · Limited investigation · Final report · Aug 12, 2010 · N208FA · Substantial damage
  > The failure of the control lanyard for undetermined reasons.
- [NTSB CEN10LA476](https://openairdocs.org/ntsb/CEN10LA476.md): Piper PA-28-180 · Winnfield, LA · Accident · Minor injuries · Limited investigation · Final report · Aug 12, 2010 · N9507J · Substantial damage
  > A loss of engine power due to fuel exhaustion.
- [NTSB ERA10LA424](https://openairdocs.org/ntsb/ERA10LA424.md): W.H. Hunnicutt Hobo · Fletcher, NC · Accident · No injuries · Limited investigation · Final report · Aug 10, 2010 · N884WH · Substantial damage
  > A partial loss of engine power for undetermined reasons. Contributing to the accident was the pilot's failure to select an adequate forced landing site.
- [NTSB ANC10MA068](https://openairdocs.org/ntsb/ANC10MA068.md): Dehavilland DHC-3 · Aleknagik, AK · Accident · 5 fatal · Class 1 · Major · Final report · Aug 9, 2010 · N455A · Substantial damage
  > The pilot's temporary unresponsiveness for reasons that could not be established from the available information. Contributing to the investigation's inability to determine exactly what occurred in the final minutes of the flight was the lack of a cockpit…
- [NTSB WPR10FA388](https://openairdocs.org/ntsb/WPR10FA388.md): Diamond HK36 · Bend, OR · Accident · 1 fatal · Field investigation · Final report · Aug 8, 2010 · N40440 · Substantial damage
  > An condition, which could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation, that prompted the pilot to discontinue the flight. Contributing to the accident…
- [NTSB CEN10LA463](https://openairdocs.org/ntsb/CEN10LA463.md): Air Tractor AT-802A · Lindsay, NE · Accident · 1 fatal · Limited investigation · Final report · Aug 8, 2010 · N802BG · Destroyed
  > The loss of airplane control for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation and evidence was insufficient to definitively establish whether the…
- [NTSB ERA10LA401](https://openairdocs.org/ntsb/ERA10LA401.md): Ayres S2R-T34 · Donalsonville, GA · Accident · No injuries · Limited investigation · Final report · Aug 4, 2010 · N4004D · Substantial damage
  > A total loss of engine power due to a failure of the compressor turbine blades for undetermined reasons.
- [NTSB CEN10FA458](https://openairdocs.org/ntsb/CEN10FA458.md): Beech C35 · Rollinsville, CO · Accident · 3 fatal · Field investigation · Final report · Aug 4, 2010 · N8974A · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB ERA10LA395](https://openairdocs.org/ntsb/ERA10LA395.md): Piper PA-28-161 · Blossvale, NY · Accident · Minor injuries · Limited investigation · Final report · Aug 3, 2010 · N9101M · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB CEN10LA449](https://openairdocs.org/ntsb/CEN10LA449.md): Cessna 172P · Santa Fe, NM · Accident · No injuries · Limited investigation · Final report · Aug 1, 2010 · N52708 · Substantial damage
  > A total loss of engine power following a loss of oil pressure for undetermined reasons.
- [NTSB CEN10LA442](https://openairdocs.org/ntsb/CEN10LA442.md): Lunceford Sparrowhawk II · Tell City, IN · Accident · 1 fatal · Limited investigation · Final report · Jul 27, 2010 · N91814 · Substantial damage
  > The pilot's loss of control of the gyroplane for undetermined reasons.
- [NTSB CEN10LA440](https://openairdocs.org/ntsb/CEN10LA440.md): Beech F35 · Enid, OK · Accident · No injuries · Limited investigation · Final report · Jul 27, 2010 · N3858B · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB ERA10LA376](https://openairdocs.org/ntsb/ERA10LA376.md): Beech K35 · Philadelphia, MS · Accident · No injuries · Limited investigation · Final report · Jul 26, 2010 · N6035E · Substantial damage
  > A throttle control malfunction during landing for undetermined reasons, resulting in a runway overrun.
- [NTSB CEN10IA438](https://openairdocs.org/ntsb/CEN10IA438.md): Bell 206 · Gulf of Mexico, LA · Incident · No injuries · Incident investigation · Final report · Jul 26, 2010 · N317RL · Minor damage
  > The loss of main rotor rpm during takeoff for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies.
- [NTSB CEN10WA585](https://openairdocs.org/ntsb/CEN10WA585.md): Schweizer 269C · Saint Gondon, France · Accident · 2 fatal · Foreign investigation · Jul 25, 2010 · F-GJGQ · Destroyed
  > On July 25, 2010, at 0800 coordinated universal time, a Schweizer 269C, French registered F-GJGQ, was destroyed when it impacted trees in a wooded area under unknown circumstances near Saint-Gondon, France. Visual meteorological conditions prevailed at the…
- [NTSB CEN10LA437](https://openairdocs.org/ntsb/CEN10LA437.md): Air Tractor AT-602 · Yates City, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 25, 2010 · N8521L · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN10LA432](https://openairdocs.org/ntsb/CEN10LA432.md): Beech A24R · Muskegon, MI · Accident · Serious injuries · Limited investigation · Final report · Jul 25, 2010 · N24584 · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN10LA431](https://openairdocs.org/ntsb/CEN10LA431.md): Bell 47G-4A · Rochester, MN · Accident · 1 fatal · Limited investigation · Final report · Jul 24, 2010 · N124SH · Substantial damage
  > The total loss of engine power due to a high-cycle fatigue fracture of a first-stage compressor blade. The reason for the fracture could not be determined during postaccident examination.

Next page: https://openairdocs.org/ntsb-findings/05000000/cases.md?page=37

## 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=36

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