# 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 26 of 45 · 2,248 cases

## Cases, newest first

- [NTSB CEN14WA093](https://openairdocs.org/ntsb/CEN14WA093.md): Robinson Helicopter R 44 · Bordeaux, France · Accident · 4 fatal · Foreign investigation · Dec 20, 2013 · F-GPJG · Destroyed
  > On December 20, 2013, about 1715 central European time, a Robinson R44 helicopter, French registered F-GPJG, owned and piloted by the accident pilot, was destroyed when it impacted the Dordogne River under unknown circumstances near Bordeaux, France. Visual…
- [NTSB ERA14LA072](https://openairdocs.org/ntsb/ERA14LA072.md): Cessna 182T · Burlington, NC · Accident · No injuries · Limited investigation · Final report · Dec 17, 2013 · N963CP · Substantial damage
  > A loss of airplane control during takeoff for reasons that could not be determined due to the postaccident condition of the elevator control system.
- [NTSB CEN14LA089](https://openairdocs.org/ntsb/CEN14LA089.md): Cessna 305C (0 1E) · Hondo, TX · Accident · Minor injuries · Limited investigation · Final report · Dec 17, 2013 · N83CN · Substantial damage
  > The pilot's loss of directional control during an attempted go-around for reasons that could not be determined based on the available evidence. Contributing to the accident was the flight instructor’s and pilot’s decision to continue flight after experiencing…
- [NTSB WPR14LA061](https://openairdocs.org/ntsb/WPR14LA061.md): Piper PA 24-250 · Fair Oaks, CA · Accident · Minor injuries · Limited investigation · Final report · Dec 5, 2013 · N6595P · Substantial damage
  > The loss of engine power during cruise flight for reasons that could not be determined because postaccident examinations of the airplane and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN14LA079](https://openairdocs.org/ntsb/CEN14LA079.md): Thompson William A Sparrow II · Jeromesville, OH · Accident · Serious injuries · Limited investigation · Final report · Dec 4, 2013 · N5955Y · Substantial damage
  > The student pilot's in-flight loss of control while attempting to return to the runway following a loss of engine power. The cause of the loss of engine power could not be determined because the postaccident examination did not reveal any anomalies.
- [NTSB CEN14LA075](https://openairdocs.org/ntsb/CEN14LA075.md): Cessna 560 · Walton, IN · Accident · No injuries · Limited investigation · Final report · Dec 2, 2013 · N810QS · Substantial damage
  > The inflight separation of the upper and lower right engine cowlings for reasons that could not be determined based on available evidence.
- [NTSB CEN14WA067](https://openairdocs.org/ntsb/CEN14WA067.md): Robinson R44 - II · Neuhausen ob Eck, Germany · Accident · 2 fatal · Foreign investigation · Nov 19, 2013 · D-HOMI · Substantial damage
  > On November 19, 2013, at 1134 coordinated universal time, a Robinson R44 II, Germany-registered D-HOMI, was substantially damaged when it impacted forested terrain near Neuhausen ob Eck, Germany. Instrument meteorological conditions prevailed at the time of…
- [NTSB CEN14FA057](https://openairdocs.org/ntsb/CEN14FA057.md): Cessna 152 · Spring, TX · Accident · 2 fatal · Field investigation · Final report · Nov 18, 2013 · N555UF · Substantial damage
  > The flight instructor's failure to maintain airspeed following a partial loss of engine power for reasons that could not be determined during postaccident examination, which resulted in an aerodynamic stall and subsequent loss of airplane control.
- [NTSB ERA14LA043](https://openairdocs.org/ntsb/ERA14LA043.md): Maule M-5-180C · Marshfield, MA · Accident · Serious injuries · Limited investigation · Final report · Nov 15, 2013 · N76RD · Destroyed
  > A partial loss of engine power for reasons that could not be determined in postaccident examinations because fire damage precluded testing of the fuel and several engine accessories.
- [NTSB CEN14FA046](https://openairdocs.org/ntsb/CEN14FA046.md): Mitsubishi MU 2B-25 · Owasso, OK · Accident · 1 fatal · Field investigation · Final report · Nov 10, 2013 · N856JT · Destroyed
  > The pilot's loss of airplane control during a known one-engine-inoperative condition. The reasons for the loss of control and engine shutdown could not be determined because the airplane was not equipped with a crash-resistant recorder and postaccident…
- [NTSB WPR14LA045](https://openairdocs.org/ntsb/WPR14LA045.md): Cessna Ector 305A · Mokuleia, HI · Accident · Minor injuries · Limited investigation · Final report · Nov 7, 2013 · N65070 · Substantial damage
  > A landing gear brake malfunction during the landing for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA14LA034](https://openairdocs.org/ntsb/ERA14LA034.md): Teal Harry H Sonerai II Stretch · De Leon Springs, FL · Accident · Minor injuries · Limited investigation · Final report · Nov 1, 2013 · N1927B · Substantial damage
  > A total loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine revealed no evidence of preexisting mechanical anomalies or failures that would have precluded normal operation.
- [NTSB CEN14FA034](https://openairdocs.org/ntsb/CEN14FA034.md): Piper PA 23-250 · Caledonia, MN · Accident · 3 fatal · Field investigation · Final report · Nov 1, 2013 · N6068Y · Substantial damage
  > The pilot's loss of control for reasons that could not be determined because the postaccident airplane examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR14LA036](https://openairdocs.org/ntsb/WPR14LA036.md): Cessna T210M · Scipio, UT · Accident · No injuries · Limited investigation · Final report · Oct 27, 2013 · N761BP · Substantial damage
  > A total 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 CEN14TA020](https://openairdocs.org/ntsb/CEN14TA020.md): Bell OH-58A · Jefferson City, MO · Accident · Minor injuries · Final report · Oct 26, 2013 · N283MP · Substantial damage
  > The loss of engine power for reasons that could not be determined because postaccident examinations of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN14LA021](https://openairdocs.org/ntsb/CEN14LA021.md): Pohoski RV 4 · New Waverly, TX · Accident · No injuries · Limited investigation · Final report · Oct 19, 2013 · N10XP · Destroyed
  > An in-flight fire for reasons that could not be determined because the wreckage was consumed by fire.
- [NTSB WPR14CA018](https://openairdocs.org/ntsb/WPR14CA018.md): Piper PA 28R-201 · Las Vegas, NV · Accident · No injuries · Data collection · Final report · Oct 16, 2013 · N3836M · Substantial damage
  > The collapse of a main landing gear for reasons that could not be determined due to no postaccident examination of the airframe.
- [NTSB ERA14LA018](https://openairdocs.org/ntsb/ERA14LA018.md): Fuller Van L Sonex · Palatine, NY · Accident · No injuries · Limited investigation · Final report · Oct 16, 2013 · N68VF · Substantial damage
  > A total loss of engine power for reasons that could not be determined because a test run and partial teardown of the engine did not reveal any anomalies.
- [NTSB WPR14CA013](https://openairdocs.org/ntsb/WPR14CA013.md): Piper PA 28-180 · Cody, WY · Accident · Serious injuries · Data collection · Final report · Oct 11, 2013 · N31BA · Substantial damage
  > A loss of engine power during climb to cruise for reasons that could not be determined due to no postaccident examination.
- [NTSB ERA14LA050](https://openairdocs.org/ntsb/ERA14LA050.md): Cessna 170 · Ridgely, MD · Accident · No injuries · Limited investigation · Final report · Oct 8, 2013 · N4216V · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB CEN14LA003](https://openairdocs.org/ntsb/CEN14LA003.md): Kenneth M Franz Ultra PUP · Belleville, TX · Accident · Serious injuries · Limited investigation · Final report · Oct 7, 2013 · N106KF · Substantial damage
  > The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane's critical angle-of-attack while turning back to the airport instead of landing straight ahead following a partial loss of engine power, which resulted in an aerodynamic…
- [NTSB ERA14LA007](https://openairdocs.org/ntsb/ERA14LA007.md): Britten-Norman BN-2A-8 · Culebra, PR · Accident · 1 fatal · Limited investigation · Final report · Oct 6, 2013 · N909GD · Substantial damage
  > The pilot's failure to maintain airplane control for reasons that could not be determined because the wreckage was not recovered.
- [NTSB WPR14CA006](https://openairdocs.org/ntsb/WPR14CA006.md): Siemens Rotorway Exec 162F · Nampa, ID · Accident · Minor injuries · Data collection · Final report · Oct 5, 2013 · N104BJ · Substantial damage
  > A flight control malfunction during cruise flight for reasons that could not be determined. No follow-up examination was conducted due to a lapse in agency funding and subsequent government shutdown.
- [NTSB ERA14LA008](https://openairdocs.org/ntsb/ERA14LA008.md): Cessna 172 - F · Gainesville, FL · Accident · Minor injuries · Limited investigation · Final report · Oct 5, 2013 · N8715U · Substantial damage
  > A total loss of engine power for reasons that could not be determined because a postaccident engine examination and test run revealed no anomalies.
- [NTSB WPR14CA004](https://openairdocs.org/ntsb/WPR14CA004.md): Venables Zenith CH701 · Snohomish, WA · Accident · Minor injuries · Data collection · Final report · Oct 3, 2013 · N143TZ · Substantial damage
  > A jammed rudder control while maneuvering in the pattern for reasons that could not be determined. No follow-up examination was conducted due to a lapse in agency funding and subsequent government shutdown.
- [NTSB ERA14LA035](https://openairdocs.org/ntsb/ERA14LA035.md): Airborne Edge Executive · Eustis, FL · Accident · Serious injuries · Limited investigation · Final report · Oct 3, 2013 · N927H · Substantial damage
  > The pilot's inadvertent stalling of the wing following a total loss of engine power for reasons that could not be determined during postaccident examinations, which resulted in a hard landing.
- [NTSB ERA13LA437](https://openairdocs.org/ntsb/ERA13LA437.md): Innovator Technologies Mosquito XEL · Felda, FL · Accident · Serious injuries · Limited investigation · Final report · Sep 29, 2013 · UNREG · Destroyed
  > The pilot’s loss of helicopter control while hovering for reasons that could not be determined during postaccident examination of the helicopter, which was limited due to postcrash fire damage.
- [NTSB CEN13LA571](https://openairdocs.org/ntsb/CEN13LA571.md): Cessna 182J · Santa Teresa, NM · Accident · No injuries · Limited investigation · Final report · Sep 29, 2013 · N3078F · Substantial damage
  > A loss of engine power for reasons that could not be determined because no anomalies were found during the postaccident engine examination.
- [NTSB ERA13FA432](https://openairdocs.org/ntsb/ERA13FA432.md): Lowerre Bruce T S 12-E · Pahokee, FL · Accident · 1 fatal · Field investigation · Final report · Sep 27, 2013 · N220BL · Substantial damage
  > Undetermined because the wreckage was not recovered.
- [NTSB CEN13LA561](https://openairdocs.org/ntsb/CEN13LA561.md): Weatherly 620 · Ulysses, KS · Accident · No injuries · Limited investigation · Final report · Sep 25, 2013 · N4623M · Destroyed
  > An in-flight fire and subsequent loss of engine power for reasons that could not be determined due to extensive fire damage to the airplane and its fuel and electrical systems.
- [NTSB ERA13LA429](https://openairdocs.org/ntsb/ERA13LA429.md): De Havilland DH 82A · Rhinebeck, NY · Accident · No injuries · Limited investigation · Final report · Sep 22, 2013 · N9410 · Substantial damage
  > The total loss of engine power for reasons that could not be determined because postaccident examinations revealed no anomalies that would have precluded normal operation, which resulted in a forced landing into trees.
- [NTSB CEN13LA552](https://openairdocs.org/ntsb/CEN13LA552.md): Piper PA 28-180 · Frankenmuth, MI · Accident · No injuries · Limited investigation · Final report · Sep 18, 2013 · N4756L · Substantial damage
  > An intermittent loss of engine power for reasons that could not be determined because postaccident examinations revealed no anomalies that would have precluded normal operation.
- [NTSB WPR13LA407](https://openairdocs.org/ntsb/WPR13LA407.md): Mooney M20J · Lund, NV · Accident · No injuries · Limited investigation · Final report · Sep 15, 2013 · N1079K · Substantial damage
  > The pilot’s failure to monitor the environment, which led to a collision with power lines during climbout. Contributing to the accident was the loss of engine power during low-altitude flight for reasons that could not be determined because postaccident…
- [NTSB WPR13LA408](https://openairdocs.org/ntsb/WPR13LA408.md): Cessna 182A · Casa Grande, AZ · Accident · No injuries · Limited investigation · Final report · Sep 14, 2013 · N6324B · Substantial damage
  > A loss of engine power during final approach for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR13FA405](https://openairdocs.org/ntsb/WPR13FA405.md): Kamtz RV-7A · Jackson Hole, WY · Accident · 2 fatal · Field investigation · Final report · Sep 11, 2013 · N820RV · Substantial damage
  > A loss of engine power for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation. Also causal was the pilot’s failure to adequately compensate for the…
- [NTSB ANC13FAMS2](https://openairdocs.org/ntsb/ANC13FAMS2.md): Piper PA-32-260 · Yakutat, AK · Accident · 1 fatal · Missing aircraft · Final report · Sep 9, 2013 · N3705W · Destroyed
  > Undetermined because the pilot and airplane were not found.
- [NTSB WPR13FA399](https://openairdocs.org/ntsb/WPR13FA399.md): Tyler Ives SD-1 TG · Spanish Fork, UT · Accident · 1 fatal · Field investigation · Final report · Sep 6, 2013 · N123SD · Destroyed
  > The pilot’s failure to maintain airplane control while performing prohibited aerobatic maneuvers and the deployment and separation of the ballistic parachute system from the airframe for reasons that could not be determined due to the severity of impact…
- [NTSB DCA13FA148](https://openairdocs.org/ntsb/DCA13FA148.md): Beech 1900D · Telluride, CO · Accident · No injuries · Field investigation · Final report · Sep 1, 2013 · N169GL · Substantial damage
  > Failure of the left main landing gear actuator internal lock to engage in the locked position for undetermined reasons.
- [NTSB WPR13LA392](https://openairdocs.org/ntsb/WPR13LA392.md): Piper PA-18-105 Special · Rancho Palos Verdes, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 30, 2013 · N224T · 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 WPR13LA389](https://openairdocs.org/ntsb/WPR13LA389.md): Champion 8KCAB · Wahiawa, HI · Accident · Serious injuries · Limited investigation · Final report · Aug 28, 2013 · N413JJ · Substantial damage
  > A total loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the engine and airframe did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN13LA514](https://openairdocs.org/ntsb/CEN13LA514.md): Challenger II · Emporia, KS · Accident · Minor injuries · Limited investigation · Final report · Aug 28, 2013 · UNREG · Substantial damage
  > The right wing’s folding up in flight for reasons that could not be determined because an examination did not reveal any abnormalities with the airframe that would have precluded normal operation.
- [NTSB CEN13FA509](https://openairdocs.org/ntsb/CEN13FA509.md): Cessna 421C · Paris, IL · Accident · 1 fatal · Field investigation · Final report · Aug 27, 2013 · N229H · Destroyed
  > The pilot's failure to abort the takeoff during the ground roll after detecting the airplane's degraded performance. Contributing to the accident was the pilot's decision to attempt a flight with a known problem with the left engine and the likely partial…
- [NTSB WPR13LA384](https://openairdocs.org/ntsb/WPR13LA384.md): Piper PA 28 · Sacramento, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 24, 2013 · N8223W · Substantial damage
  > A partial loss of engine power during initial climb for reasons that could not be determined because postaccident examination revealed no evidence of preimpact mechanical malfunction or failure that would have precluded normal operation.
- [NTSB CEN13LA502](https://openairdocs.org/ntsb/CEN13LA502.md): Anderas Tiger Moth R80 · New Franken, WI · Accident · Minor injuries · Limited investigation · Final report · Aug 24, 2013 · N927TM · Substantial damage
  > The 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 WPR13LA378](https://openairdocs.org/ntsb/WPR13LA378.md): Cessna 172B · Sisters, OR · Accident · No injuries · Limited investigation · Final report · Aug 18, 2013 · N8141X · Substantial damage
  > A loss of engine power during cruise flight for reasons that could not be determined because the engine was not properly preserved to prevent corrosion after the wreckage was recovered from the lake.
- [NTSB CEN13LA490](https://openairdocs.org/ntsb/CEN13LA490.md): Taylorcraft BC12-D1 · Eastport, MI · Accident · No injuries · Limited investigation · Final report · Aug 14, 2013 · N44351 · Destroyed
  > A fuel leak in the engine compartment and subsequent fire, the source of which could not be determined because of extensive postaccident fire damage.
- [NTSB CEN13LA484](https://openairdocs.org/ntsb/CEN13LA484.md): Rockwell International S-2R · Larchwood, IA · Accident · No injuries · Limited investigation · Final report · Aug 12, 2013 · N5610X · Substantial damage
  > A complete loss of engine power during an agricultural application flight for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA13LA360](https://openairdocs.org/ntsb/ERA13LA360.md): Quest Kodiak 100 · Westport, MA · Accident · Minor injuries · Limited investigation · Final report · Aug 11, 2013 · N10PZ · Substantial damage
  > A failure to achieve a positive climb rate after takeoff for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any mechanical malfunctions or anomalies that would have precluded normal operation.
- [NTSB CEN13FA476](https://openairdocs.org/ntsb/CEN13FA476.md): Beechcraft F33A · Ennis, TX · Accident · 2 fatal · Field investigation · Final report · Aug 11, 2013 · N4514S · Substantial damage
  > The loss of engine power for reasons that could not be determined during postaccident examinations due to postcrash fire damage.
- [NTSB ANC13LA074](https://openairdocs.org/ntsb/ANC13LA074.md): Hughes 500D · Delta Junction, AK · Accident · No injuries · Class 3 · Limited · Final report · Aug 6, 2013 · N134SH · Substantial damage
  > A total loss of engine power for undetermined reasons, which necessitated an emergency hovering autorotation, during which the helicopter impacted trees and terrain.

Next page: https://openairdocs.org/ntsb-findings/05000000/cases.md?page=27

## 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=26

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