# 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 27 of 45 · 2,248 cases

## Cases, newest first

- [NTSB ERA13FA349](https://openairdocs.org/ntsb/ERA13FA349.md): Beech A36 · Alma, GA · Accident · 2 fatal · Field investigation · Final report · Aug 4, 2013 · N1831W · Destroyed
  > Descent from cruise flight until impact with trees and the ground for reasons that could not be determined because postaccident examination of the wreckage did not reveal any anomalies that would have precluded normal operation and the pilot's autopsy and…
- [NTSB WPR13LA353](https://openairdocs.org/ntsb/WPR13LA353.md): Weber GPA-2 · Brentwood, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 1, 2013 · N199BW · Substantial damage
  > A 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 ERA13LA344](https://openairdocs.org/ntsb/ERA13LA344.md): Hughes 369D · Center Point, WV · Accident · Minor injuries · Limited investigation · Final report · Jul 29, 2013 · N31HM · Substantial damage
  > A total 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 WPR13LA346](https://openairdocs.org/ntsb/WPR13LA346.md): Beech 35-B33 · Lone Pine, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 28, 2013 · N82182 · Substantial damage
  > A partial loss of engine power after takeoff for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the pilot's decision to not…
- [NTSB WPR13CA348](https://openairdocs.org/ntsb/WPR13CA348.md): Cessna 172S · Phoenix, AZ · Accident · No injuries · Data collection · Final report · Jul 26, 2013 · N635ND · Substantial damage
  > A substantially damaged firewall that occurred during an unknown phase of flight for reasons that could not be determined.
- [NTSB ERA13LA339](https://openairdocs.org/ntsb/ERA13LA339.md): Cessna 172M · Farmingdale, NJ · Accident · Minor injuries · Limited investigation · Final report · Jul 26, 2013 · N61929 · Substantial damage
  > The airplane’s loss of lift shortly after picking up a banner for reasons that could not be determined because postaccident examinations revealed no anomalies that would have precluded normal operation.
- [NTSB CEN13LA437](https://openairdocs.org/ntsb/CEN13LA437.md): Enstrom F-28A · Danbury, TX · Accident · Serious injuries · Limited investigation · Final report · Jul 26, 2013 · N287Q · Substantial damage
  > The loss of collective control for reasons that could not be determined due to extensive fire damage.
- [NTSB WPR13LA336](https://openairdocs.org/ntsb/WPR13LA336.md): Wester/Steiger Glastar · Independence, OR · Accident · No injuries · Limited investigation · Final report · Jul 22, 2013 · N130GS · Substantial damage
  > The total loss of engine power for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA13LA328](https://openairdocs.org/ntsb/ERA13LA328.md): Cirrus Design SR22 · Tappahannock, VA · Accident · No injuries · Limited investigation · Final report · Jul 21, 2013 · N223SS · Substantial damage
  > A failure of the engine crankshaft top rear trailing forward counterweight retaining plate, which resulted in a total loss of engine power. The reason for the retaining plate’s failure could not be determined during postaccident examination.
- [NTSB ERA13LA323](https://openairdocs.org/ntsb/ERA13LA323.md): Johnson Garret W Merlin GT · Collierville, TN · Accident · Minor injuries · Limited investigation · Final report · Jul 17, 2013 · N618V · Destroyed
  > The total loss of engine power during takeoff for reasons that could not be determined during postaccident examination due to postcrash fire damage.
- [NTSB CEN13LA467](https://openairdocs.org/ntsb/CEN13LA467.md): Christen Industries Pitts S-2B · Dalton, OH · Accident · No injuries · Limited investigation · Final report · Jul 16, 2013 · N519ZB · Substantial damage
  > A total loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB WPR13LA363](https://openairdocs.org/ntsb/WPR13LA363.md): Quarnoccio Avid Flyer · White City, OR · Accident · No injuries · Limited investigation · Final report · Jul 13, 2013 · N399Q · Substantial damage
  > Excessive engine operating temperature, which resulted in engine failure and a forced landing. The reason for the excessive engine operating temperature could not be determined during postaccident engine examination.
- [NTSB WPR13LA320](https://openairdocs.org/ntsb/WPR13LA320.md): Stinson 108-3 · Blackfoot, ID · Accident · No injuries · Limited investigation · Final report · Jul 10, 2013 · N703C · Substantial damage
  > A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB ERA13LA318](https://openairdocs.org/ntsb/ERA13LA318.md): Grumman Acft ENG Cor-Schweizer G-164B · Beaufort, NC · Accident · No injuries · Limited investigation · Final report · Jul 8, 2013 · N6651K · Substantial damage
  > A failure of the right brake for reasons that could not be determined because a postaccident examination of the brake could not be performed.
- [NTSB WPR13LA310](https://openairdocs.org/ntsb/WPR13LA310.md): Rockwell NA-265-65 · Las Vegas, NV · Accident · No injuries · Limited investigation · Final report · Jul 6, 2013 · XBRSC · Substantial damage
  > The pilots’ failure to follow the airplane manufacturer’s emergency procedures for a hydraulic system failure and emergency braking, which resulted in the loss of braking action upon landing and the subsequent loss of directional control while turning off the…
- [NTSB DCA13MA120](https://openairdocs.org/ntsb/DCA13MA120.md): Boeing 777-200ER · San Francisco, CA · Accident · 3 fatal · Class 1 · Major · Final report · Jul 6, 2013 · HL7742 · Destroyed
  > The flight crew's mismanagement of the airplane's descent during the visual approach, the pilot flying's unintended deactivation of automatic airspeed control, the flight crew's inadequate monitoring of airspeed, and the flight crew's delayed execution of a…
- [NTSB WPR13CA306](https://openairdocs.org/ntsb/WPR13CA306.md): Maule MX7-180A · Elko, NV · Accident · No injuries · Data collection · Final report · Jun 30, 2013 · N5839R · Substantial damage
  > A flat main landing gear tire during the landing roll for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR13FA300](https://openairdocs.org/ntsb/WPR13FA300.md): Allstar PZL Glider SZD-54-2 Perkoz · Jacumba, CA · Accident · 2 fatal · Field investigation · Final report · Jun 29, 2013 · N684SD · Substantial damage
  > The premature release of the towline from the glider and the glider’s subsequent right banking turn at low altitude for reasons that could not be determined because postaccident airframe examination did not reveal any evidence of a mechanical malfunction or…
- [NTSB WPR13FA298](https://openairdocs.org/ntsb/WPR13FA298.md): Ayers Less Drag Special · Oxnard, CA · Accident · 2 fatal · Field investigation · Final report · Jun 29, 2013 · N130LD · Substantial damage
  > A loss of engine power after takeoff for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation, and the pilot’s failure to maintain adequate airspeed, which resulted in an…
- [NTSB ERA13LA312](https://openairdocs.org/ntsb/ERA13LA312.md): Schweizer G-164B · Jackson, TN · Accident · No injuries · Limited investigation · Final report · Jun 29, 2013 · N3633S · Substantial damage
  > A failure of the right main landing gear wheel rim during the landing roll, resulting in a loss of control and a subsequent collapse of the right main landing gear.
- [NTSB ANC13LA059](https://openairdocs.org/ntsb/ANC13LA059.md): Cessna 175 · Skwentna, AK · Accident · No injuries · Limited investigation · Final report · Jun 29, 2013 · N7698M · Substantial damage
  > The partial loss of engine power for reasons that could not be determined because the postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation..
- [NTSB CEN13LA375](https://openairdocs.org/ntsb/CEN13LA375.md): Air Tractor AT-301 · Colome, SD · Accident · No injuries · Limited investigation · Final report · Jun 26, 2013 · N3168X · Substantial damage
  > The loss of engine power for reasons that could not be determined because a postaccident engine run revealed no anomalies that would have precluded normal operation.
- [NTSB CEN13LA376](https://openairdocs.org/ntsb/CEN13LA376.md): Avery Jack H Glastar GS-1 · Grand Rapids, MN · Accident · Serious injuries · Limited investigation · Final report · Jun 25, 2013 · N103A · Substantial damage
  > The loss of directional control during landing because the autopilot engaged for undetermined reasons because water and recovery damage precluded detailed examination of system components.
- [NTSB CEN13LA370](https://openairdocs.org/ntsb/CEN13LA370.md): Mooney M20J · El Reno, OK · Accident · No injuries · Limited investigation · Final report · Jun 25, 2013 · N205MC · Substantial damage
  > A loss of engine power, which resulted from the failure of the magneto assembly for reasons that could not be determined during postaccident examinations.
- [NTSB WPR13FA289](https://openairdocs.org/ntsb/WPR13FA289.md): Cessna P337H · San Luis Obispo, CA · Accident · 1 fatal · Field investigation · Final report · Jun 24, 2013 · N337LJ · Destroyed
  > Loss of engine power from the rear engine for reasons that could not be determined because of the postimpact thermal damage to the engine. Contributing to the accident were the pilot's decision to continue flight with a known deficiency, his failure to abort…
- [NTSB ANC13RA061](https://openairdocs.org/ntsb/ANC13RA061.md): De Havilland DHC-2 MK 1 · Half Moon Bay, Canada · Accident · No injuries · Foreign investigation · Jun 24, 2013 · C-FPCG · Substantial damage
  > On June 24, 2013, at 1544 coordinated universal time, a DeHavilland DHC-2MK 1, Canadian registered C-FPCG, owned and operated by Seair Seaplanes, was substantially damaged near Half Moon Bay, Canada. Visual meteorological conditions prevailed at the time of…
- [NTSB CEN13LA367](https://openairdocs.org/ntsb/CEN13LA367.md): Piper PA-28-140 · De Smet, SD · Accident · No injuries · Limited investigation · Final report · Jun 21, 2013 · N589FL · Substantial damage
  > A loss of engine power for reasons that could not be determined because postaccident examinations of the airplane and engine revealed no mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN13LA363](https://openairdocs.org/ntsb/CEN13LA363.md): Thomsen Avid Flyer MK IV · Hibbing, MN · Accident · No injuries · Limited investigation · Final report · Jun 20, 2013 · N6240T · Substantial damage
  > A total loss of engine power for reasons that could not be determined because the postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN13LA361](https://openairdocs.org/ntsb/CEN13LA361.md): Piper PA-30 · Dayton, OH · Accident · No injuries · Limited investigation · Final report · Jun 20, 2013 · N7017Y · Substantial damage
  > The pilot’s loss of control of the airplane for reasons that could not be undetermined because a postaccident examination of the airplane did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA13LA291](https://openairdocs.org/ntsb/ERA13LA291.md): Cessna 172S · Clearwater, FL · Accident · No injuries · Limited investigation · Final report · Jun 19, 2013 · N426SJ · Substantial damage
  > A total loss of engine power for reasons that could not be determined because neither postaccident visual examinations nor test runs of the engine revealed any anomalies that would have precluded normal operation.
- [NTSB CEN13LA359](https://openairdocs.org/ntsb/CEN13LA359.md): Bell 206 - L4 · Lake City, AR · Accident · No injuries · Limited investigation · Final report · Jun 19, 2013 · N467AE · Substantial damage
  > A partial 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 CEN13FA357](https://openairdocs.org/ntsb/CEN13FA357.md): Bell 47G-3B-1 · Maplewood, MN · Accident · 1 fatal · Field investigation · Final report · Jun 19, 2013 · N5024N · Destroyed
  > The loss of helicopter control for reasons that could not be determined because an examination of the helicopter and its systems revealed no malfunctions or failures that would have precluded normal operation.
- [NTSB WPR13LA275](https://openairdocs.org/ntsb/WPR13LA275.md): Piper PA-28-181 · Waihee-Waiehu, HI · Accident · No injuries · Limited investigation · Final report · Jun 17, 2013 · N9160Q · Substantial damage
  > The loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies due to saltwater immersion.
- [NTSB CEN13LA390](https://openairdocs.org/ntsb/CEN13LA390.md): Rockwell S-2R · Boise City, OK · Accident · No injuries · Limited investigation · Final report · Jun 12, 2013 · N2249U · Substantial damage
  > The total loss of engine power for reasons that could not be determined because postaccident examination of the engine and fuel system revealed no anomalies.
- [NTSB CEN13LA341](https://openairdocs.org/ntsb/CEN13LA341.md): Air Tractor AT-301 · Farnsworth, TX · Accident · No injuries · Limited investigation · Final report · Jun 9, 2013 · N4421S · Substantial damage
  > The partial loss of engine power for reasons that could not be determined because the postaccident engine examination revealed no anomalies.
- [NTSB WPR13LA266](https://openairdocs.org/ntsb/WPR13LA266.md): Eurocopter EC 130 B4 · Grand Canyon, AZ · Accident · No injuries · Limited investigation · Final report · Jun 8, 2013 · N130PH · Substantial damage
  > A loss of throttle control movement during a practice autorotation that was planned to terminate with a power recovery for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal…
- [NTSB CEN13LA325](https://openairdocs.org/ntsb/CEN13LA325.md): Robinson Helicopter R22 Beta · New Braunfels, TX · Accident · Minor injuries · Limited investigation · Final report · Jun 6, 2013 · N137DF · Substantial damage
  > The pilot's improper flare during an autorotation, which resulted in a hard landing, and a partial loss of engine power for reasons that could not be determined because the examination of the engine did not reveal any anomalies that would have precluded…
- [NTSB ERA13LA254](https://openairdocs.org/ntsb/ERA13LA254.md): Fleming Eldridge E Sonex · Naples, FL · Accident · Serious injuries · Limited investigation · Final report · May 26, 2013 · N634SX · Substantial damage
  > The pilot’s failure to maintain airspeed during a forced landing, which resulted in an aerodynamic stall. Contributing to the accident was a partial loss of the noncertificated engine’s power for reasons that could not be determined because examination of the…
- [NTSB CEN13WA470](https://openairdocs.org/ntsb/CEN13WA470.md): Geneva, Switzerland · Incident · No injuries · Foreign investigation · May 26, 2013 · No damage
  > On May 26, 2013, at 1043 coordinated universal time, an Airbus A319, United Kingdom registered G-EZAU, a Boeing 737, German registered D-ABKB, and a Boeing 737, United Kingdom registered G-TAWF, came in close proximity near Geneva, Switzerland. Visual…
- [NTSB ANC13LA048](https://openairdocs.org/ntsb/ANC13LA048.md): Piper PA-16 · Juneau, AK · Accident · Minor injuries · Limited investigation · Final report · May 19, 2013 · N5372H · Substantial damage
  > The total loss of engine power for reasons that could not be determined due to the inability to recover the airplane.
- [NTSB CEN13LA287](https://openairdocs.org/ntsb/CEN13LA287.md): Piper PA-28-161 · Oskaloosa, IA · Accident · Minor injuries · Limited investigation · Final report · May 18, 2013 · N47539 · Substantial damage
  > The loss of engine power for reasons that could not be determined because the engine examination did not reveal any malfunctions or failures that would have precluded normal operation.
- [NTSB WPR13LA230](https://openairdocs.org/ntsb/WPR13LA230.md): Cessna T188C · Pine Bluffs, WY · Accident · No injuries · Limited investigation · Final report · May 15, 2013 · N2167J · Substantial damage
  > The loss of engine power during takeoff 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 ERA13LA241](https://openairdocs.org/ntsb/ERA13LA241.md): Cessna 182E · Southwick, MA · Accident · No injuries · Limited investigation · Final report · May 13, 2013 · N817JT · Substantial damage
  > The partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any malfunctions or failures that would have precluded normal operation.
- [NTSB CEN13LA283](https://openairdocs.org/ntsb/CEN13LA283.md): Air Tractor AT-302 · Winnie, TX · Accident · No injuries · Limited investigation · Final report · May 9, 2013 · N3650B · Substantial damage
  > The improper decision by the pilot to attempt a flight with a known fuel system-related maintenance discrepancy, which resulted in a fuel imbalance and subsequent fuel starvation during an approach to an alternate airport with a rough field. Contributing to…
- [NTSB CEN13FA267](https://openairdocs.org/ntsb/CEN13FA267.md): Beech 58 · Mena, AR · Incident · No injuries · Field investigation · Final report · May 4, 2013 · N44GC · Minor damage
  > A partial loss of power on both engines during takeoff for reasons that could not be determined because examination of the airframe and a test run of both engines revealed no mechanical anomalies that would have precluded normal operation.
- [NTSB WPR13LA224](https://openairdocs.org/ntsb/WPR13LA224.md): Cessna 172M · Lakeport, CA · Accident · No injuries · Limited investigation · Final report · Apr 29, 2013 · N20800 · Substantial damage
  > Loss of engine power during climb due to a failure of the No. 2 piston assembly; the reason for the failure could not be determined because of the extent of damage to the piston assembly.
- [NTSB ERA13LA220](https://openairdocs.org/ntsb/ERA13LA220.md): Piper PA-28-151 · Daytona Beach, FL · Accident · No injuries · Limited investigation · Final report · Apr 26, 2013 · N75148 · Substantial damage
  > A total loss of engine power during initial climb for reasons that could not be determined because postaccident examinations did not reveal any preimpact failures or malfunctions that would have precluded normal operation.
- [NTSB ERA13LA214](https://openairdocs.org/ntsb/ERA13LA214.md): Beech 35-C33A · Knoxville, TN · Accident · Serious injuries · Limited investigation · Final report · Apr 25, 2013 · N2713T · Substantial damage
  > The loss of engine power during takeoff for a reasons that could not be determined because postaccident examinations and testing revealed no anomalies that would have precluded normal operation.
- [NTSB ERA13LA211](https://openairdocs.org/ntsb/ERA13LA211.md): Piper PA-18-135 · Inlet, NY · Accident · Serious injuries · Limited investigation · Final report · Apr 23, 2013 · N18JP · Substantial damage
  > A loss of engine power for reasons that could not be determined during postaccident examination.
- [NTSB CEN13WA297](https://openairdocs.org/ntsb/CEN13WA297.md): Cessna 510 · Luxembourg, Luxembourg · Accident · No injuries · Foreign investigation · Apr 16, 2013 · LX-FGL · Substantial damage
  > On April 16, 2013, at 0706 coordinated universal time, a Cessna 510, Luxembourg registered LX-FGL, owned and operated by Flying Group LUX S.A., was substantially damaged in flight. The airplane landed without further incident at Luxembourg Findel…

Next page: https://openairdocs.org/ntsb-findings/05000000/cases.md?page=28

## 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=27

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.
