# 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 40 of 45 · 2,248 cases

## Cases, newest first

- [NTSB CEN09LA573](https://openairdocs.org/ntsb/CEN09LA573.md): Beech B36TC · Sullivan, MO · Accident · No injuries · Limited investigation · Final report · Sep 7, 2009 · N65873 · Substantial damage
  > A loss of aircraft control for undetermined reasons.
- [NTSB CEN09CA569](https://openairdocs.org/ntsb/CEN09CA569.md): Cessna T210 · Tulsa, OK · Accident · No injuries · Data collection · Final report · Sep 7, 2009 · N6442Y · Substantial damage
  > A temporary loss of elevator pitch control for undetermined reasons.
- [NTSB CEN09CA563](https://openairdocs.org/ntsb/CEN09CA563.md): Halbert James H Rans S-7 · Short, OK · Accident · Minor injuries · Data collection · Final report · Sep 6, 2009 · N615JH · Destroyed
  > A partial loss of engine power for undetermined reasons.
- [NTSB CEN09LA575](https://openairdocs.org/ntsb/CEN09LA575.md): Schweizer 269C · Preston, TX · Accident · No injuries · Limited investigation · Final report · Sep 5, 2009 · N626LH · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB WPR09LA431](https://openairdocs.org/ntsb/WPR09LA431.md): Piper PA-28-180 · Oroville, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 4, 2009 · N2482R · Destroyed
  > A total loss of engine power for undetermined reasons.
- [NTSB CEN09LA561](https://openairdocs.org/ntsb/CEN09LA561.md): Champion 7KCAB · Stacy, MN · Accident · Serious injuries · Limited investigation · Final report · Sep 4, 2009 · N2629G · Substantial damage
  > A partial loss of engine power during initial climb for undetermined reasons.
- [NTSB CEN09IA578](https://openairdocs.org/ntsb/CEN09IA578.md): Cessna 421 · Sugar Land, TX · Incident · No injuries · Incident investigation · Final report · Sep 4, 2009 · N2349S · Minor damage
  > The improper installation of the pitch trim cable which resulted in it making improper contact with a guard pin that led to the fatigue failure of the cable.
- [NTSB CEN09LA572](https://openairdocs.org/ntsb/CEN09LA572.md): Wright Bruce M Avid Flyer · Hitchcock, TX · Accident · Minor injuries · Limited investigation · Final report · Sep 3, 2009 · N583AF · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB CEN09LA558](https://openairdocs.org/ntsb/CEN09LA558.md): Hughes 269C · Arapahoe, NE · Accident · No injuries · Limited investigation · Final report · Sep 2, 2009 · N58163 · Substantial damage
  > A sudden vibration for undetermined reasons.
- [NTSB ERA09LA498](https://openairdocs.org/ntsb/ERA09LA498.md): Hahn R-W22 Tiger Moth Rep · Symrna, TN · Accident · Serious injuries · Limited investigation · Final report · Sep 1, 2009 · N318JT · Destroyed
  > A loss of engine power for undetermined reasons.
- [NTSB ERA09FA497](https://openairdocs.org/ntsb/ERA09FA497.md): Robinson R44 · Jackson, MS · Accident · 1 fatal · Field investigation · Final report · Sep 1, 2009 · N33PX · Substantial damage
  > The pilot's failure to maintain adequate main rotor rpm, for undetermined reasons.
- [NTSB ERA09LA529](https://openairdocs.org/ntsb/ERA09LA529.md): Bombardier DHC-8-202 · Sterling, VA · Accident · No injuries · Limited investigation · Final report · Aug 29, 2009 · N367PH · Substantial damage
  > Undetermined.
- [NTSB ERA09LA494](https://openairdocs.org/ntsb/ERA09LA494.md): Piper PA-28R-201 · Luray, VA · Accident · No injuries · Limited investigation · Final report · Aug 26, 2009 · N186CF · Substantial damage
  > A total loss of engine power during initial climb for undetermined reasons.
- [NTSB WPR09LA418](https://openairdocs.org/ntsb/WPR09LA418.md): Cessna 177 · Chandler, AZ · Accident · No injuries · Limited investigation · Final report · Aug 25, 2009 · N30715 · Destroyed
  > An on-ground fire in the engine compartment for undetermined reasons.
- [NTSB ERA09LA481](https://openairdocs.org/ntsb/ERA09LA481.md): Cessna 172RG · Rockaway, NJ · Accident · Minor injuries · Limited investigation · Final report · Aug 25, 2009 · N6117R · Substantial damage
  > A total loss of engine power due to oil starvation for undetermined reasons.
- [NTSB WPR09LA413](https://openairdocs.org/ntsb/WPR09LA413.md): Antares US MA-34R · San Jose, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 24, 2009 · N2356W · Substantial damage
  > The pilot's failure to maintain aircraft control during engine startup, which resulted in a collision with parked aircraft. Contributing to the accident was the engine's inadvertent increase to high power for undetermined reasons.
- [NTSB WPR09LA412](https://openairdocs.org/ntsb/WPR09LA412.md): Piper PA-24-260 · Santa Barbara, CA · Accident · No injuries · Limited investigation · Final report · Aug 23, 2009 · N8775P · Substantial damage
  > A loss of power during approach due to fuel exhaustion for undetermined reasons
- [NTSB ERA09LA477](https://openairdocs.org/ntsb/ERA09LA477.md): Vollenweider R/Hurst R F Vans RV-9A · Marianna, FL · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 2009 · N362TS · Substantial damage
  > Failure of the propeller speed reduction gearbox for undetermined reasons. Contributing to the accident was the pilot’s decision to disregard the manufacturer's mandate to replace the gearbox, the manufacturer's failure to provide owners with technical…
- [NTSB CEN10WA486](https://openairdocs.org/ntsb/CEN10WA486.md): Cessna T206 · Hamburg Harbour, Germany · Accident · 2 fatal · Foreign investigation · Aug 22, 2009 · Substantial damage
  > On August 22, 2009, at 1252 coordinated universal time, a Cessna T206H, was substantially damaged when it nosed over during a water landing at Hamburg Harbour, Hamburg, Germany. Visual meteorological conditions prevailed at the time of the accident. The pilot…
- [NTSB ERA09LA473](https://openairdocs.org/ntsb/ERA09LA473.md): Flight Design Ctsw · Okeechobee, FL · Accident · Minor injuries · Limited investigation · Final report · Aug 21, 2009 · N535CT · Substantial damage
  > A total loss of engine power during initial climb for undetermined reasons.
- [NTSB ERA09LA468](https://openairdocs.org/ntsb/ERA09LA468.md): Piper PA-12 · Mount Holly, NJ · Accident · No injuries · Limited investigation · Final report · Aug 18, 2009 · N7556H · Substantial damage
  > A loss of directional control during landing for undetermined reasons.
- [NTSB CEN09LA523](https://openairdocs.org/ntsb/CEN09LA523.md): From Here To There PDQ RV-8 · Tea, SD · Accident · 2 fatal · Limited investigation · Final report · Aug 16, 2009 · N98AW · Substantial damage
  > The pilot's failure to maintain control of the airplane during recovery from an aerobatic maneuver.
- [NTSB CEN09CA548](https://openairdocs.org/ntsb/CEN09CA548.md): Piper PA-15 · Plainwell, MI · Accident · No injuries · Data collection · Final report · Aug 15, 2009 · N4380H · Substantial damage
  > A loss of control on takeoff for undetermined reasons.
- [NTSB CEN09WA524](https://openairdocs.org/ntsb/CEN09WA524.md): Beech 99 · Évora, Portugal · Accident · 2 fatal · Foreign investigation · Aug 14, 2009 · F-BTME · Destroyed
  > Under the jurisdiction and control of the Portuguese government.
- [NTSB WPR09LA395](https://openairdocs.org/ntsb/WPR09LA395.md): Piper PA-38-112 · Glendale, AZ · Accident · No injuries · Limited investigation · Final report · Aug 12, 2009 · N86GW · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN09CA522](https://openairdocs.org/ntsb/CEN09CA522.md): Grumman Acft ENG Cor-Schweizer G-164A · Evansville, WI · Accident · No injuries · Data collection · Final report · Aug 12, 2009 · N9794 · Substantial damage
  > A jam of the elevator flight control for undetermined reasons.
- [NTSB ERA09LA455](https://openairdocs.org/ntsb/ERA09LA455.md): Schempp-Hirth Ventus 2CM · St. Elmo, AL · Accident · Minor injuries · Limited investigation · Final report · Aug 8, 2009 · N70ZZ · Substantial damage
  > A partial loss of engine power for undetermined reasons. Contributing to the accident was the pilot's failure to maintain adequate airspeed during the forced landing.
- [NTSB CEN09LA512](https://openairdocs.org/ntsb/CEN09LA512.md): Hooper James A Bushby MUS · Gladwin, MI · Accident · 1 fatal · Limited investigation · Final report · Aug 7, 2009 · N37JD · Destroyed
  > The pilot's failure to maintain aircraft control for undetermined reasons.
- [NTSB CEN09LA503](https://openairdocs.org/ntsb/CEN09LA503.md): Air Tractor AT401 · Waterloo, IA · Accident · No injuries · Limited investigation · Final report · Aug 4, 2009 · N60747 · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN09LA490](https://openairdocs.org/ntsb/CEN09LA490.md): Grumman American AA-1B · Whitney, TX · Accident · Minor injuries · Limited investigation · Final report · Aug 3, 2009 · N1644R · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB WPR09LA380](https://openairdocs.org/ntsb/WPR09LA380.md): Davenport DAVE-EZ · Santa Monica, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 2, 2009 · N7CE · Substantial damage
  > The loss of engine power for undetermined reasons. Contributing to the accident was the pilot's failure to maintain aircraft control during the forced landing.
- [NTSB ERA09LA433](https://openairdocs.org/ntsb/ERA09LA433.md): Boeing A75N1 · Livermore Falls, ME · Accident · No injuries · Limited investigation · Final report · Aug 1, 2009 · N49778 · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN09LA466](https://openairdocs.org/ntsb/CEN09LA466.md): Luscombe 8C · Mount Carmel, IL · Accident · 1 fatal · Limited investigation · Final report · Jul 25, 2009 · N37080 · Substantial damage
  > The reason for this accident was not determined.
- [NTSB CEN09FA462](https://openairdocs.org/ntsb/CEN09FA462.md): Beech V35 · Oklahoma City, OK · Accident · 1 fatal · Field investigation · Final report · Jul 25, 2009 · N9112S · Substantial damage
  > The pilot’s decision to operate an airplane with known deficiencies, and the loss of engine power during climb for undetermined reasons.
- [NTSB ERA09LA421](https://openairdocs.org/ntsb/ERA09LA421.md): Robinson Helicopter R44 II · Dunedin, FL · Accident · No injuries · Limited investigation · Final report · Jul 24, 2009 · N645JC · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB CEN09CA468](https://openairdocs.org/ntsb/CEN09CA468.md): Corvus Carone MK 1 · Lee's Summit, MO · Accident · No injuries · Data collection · Final report · Jul 23, 2009 · N51299 · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN09CA455](https://openairdocs.org/ntsb/CEN09CA455.md): Forster SA-300 · Iowa City, IA · Accident · No injuries · Data collection · Final report · Jul 22, 2009 · N7BT · Substantial damage
  > the loss of engine power for undetermined reasons.
- [NTSB WPR09LA361](https://openairdocs.org/ntsb/WPR09LA361.md): Piper PA-46-350P · Redmond, OR · Accident · No injuries · Limited investigation · Final report · Jul 21, 2009 · N117KR · Substantial damage
  > An undetermined hydraulic system malfunction in the engine compartment during descent from cruise flight which resulted in an in-flight fire.
- [NTSB CEN09CA452](https://openairdocs.org/ntsb/CEN09CA452.md): Weatherly 620B · New England, ND · Accident · Minor injuries · Data collection · Final report · Jul 21, 2009 · N2027K · Substantial damage
  > The loss of engine power for undetermined reasons while maneuvering at low altitude.
- [NTSB ERA09LA413](https://openairdocs.org/ntsb/ERA09LA413.md): Cessna 152 · Ponce, PR · Accident · 1 fatal · Limited investigation · Final report · Jul 19, 2009 · N5518P · Destroyed
  > The airplane’s impact with water for undetermined reasons.
- [NTSB ERA09LA410](https://openairdocs.org/ntsb/ERA09LA410.md): Robinson R44 · Silver Spring, PA · Accident · No injuries · Limited investigation · Final report · Jul 19, 2009 · N25VH · Substantial damage
  > The student pilot's inability to fully control the helicopter, during cruise and the resultant off-field hard landing.
- [NTSB WPR09LA355](https://openairdocs.org/ntsb/WPR09LA355.md): Beech 35-B33 · Truckee, CA · Accident · No injuries · Limited investigation · Final report · Jul 18, 2009 · N9772Y · Substantial damage
  > A loss of engine power during initial climb for undetermined reasons.
- [NTSB CEN09WA454](https://openairdocs.org/ntsb/CEN09WA454.md): Cirrus SR22 · Perrigny, France · Accident · 1 fatal · Foreign investigation · Jul 18, 2009 · N752CD · Destroyed
  > Under the jurisdiction and control of the French government.
- [NTSB ERA09FA411](https://openairdocs.org/ntsb/ERA09FA411.md): Cessna R182 · Hayesville, NC · Accident · 1 fatal · Field investigation · Final report · Jul 17, 2009 · N778RK · Destroyed
  > Flight into terrain for undetermined reasons.
- [NTSB ERA09LA407](https://openairdocs.org/ntsb/ERA09LA407.md): Cessna 120 · Morristown, TN · Accident · Minor injuries · Limited investigation · Final report · Jul 16, 2009 · N7227E · Substantial damage
  > The partial loss of engine power for undetermined reasons.
- [NTSB ERA09LA399](https://openairdocs.org/ntsb/ERA09LA399.md): Cessna 172N · Rochester, MA · Accident · No injuries · Limited investigation · Final report · Jul 12, 2009 · N4773G · Substantial damage
  > An engine vibration as reported by the pilot, for undetermined reasons.
- [NTSB WPR09LA337](https://openairdocs.org/ntsb/WPR09LA337.md): Engineering & Research 415C · Corona, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 11, 2009 · N87295 · Substantial damage
  > A total loss of engine power during cruise flight for undetermined reasons.
- [NTSB ERA09LA394](https://openairdocs.org/ntsb/ERA09LA394.md): Ayres S2R-T34 · Hertford, NC · Accident · 1 fatal · Limited investigation · Final report · Jul 10, 2009 · N357CA · Substantial damage
  > The in-flight collision with terrain for undetermined reasons.
- [NTSB CEN09LA451](https://openairdocs.org/ntsb/CEN09LA451.md): Grumman Acft ENG Cor-Schweizer G-164B · Beaman, IA · Accident · No injuries · Limited investigation · Final report · Jul 10, 2009 · N6683K · Substantial damage
  > The loss of engine power during initial climb for undetermined reasons.
- [NTSB CEN09FA430](https://openairdocs.org/ntsb/CEN09FA430.md): Beech 35-A33 · Las Vegas, NM · Accident · Serious injuries · Field investigation · Final report · Jul 10, 2009 · N4334W · Substantial damage
  > The loss of engine power for undetermined reasons.

Next page: https://openairdocs.org/ntsb-findings/05000000/cases.md?page=41

## 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=40

---
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.