# NTSB investigations: Amateur-built UNKNOWN ENG, 2017

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.

## Latest cases

- [NTSB GAA18CA084](https://openairdocs.org/ntsb/GAA18CA084.md): Corbeil Shawn Corbeil Shawn SER VI · Rogersburg, OR · Accident · No injuries · Data collection · Final report · Dec 12, 2017 · N552EZ · Substantial damage
  > The pilot’s improper landing flare and his subsequent failure to see and avoid a tree during a go-around.
- [NTSB GAA18CA083](https://openairdocs.org/ntsb/GAA18CA083.md): Michael Adamczyk Zenith CH750 · Franklin, PA · Accident · No injuries · Data collection · Final report · Dec 9, 2017 · N750AD · Substantial damage
  > The pilot’s excessive application of aft stick during takeoff, which resulted in an aerodynamic stall. Contributing to this accident was the pilot’s inexperience in the airplane.
- [NTSB ERA18CA035](https://openairdocs.org/ntsb/ERA18CA035.md): Driggers Quillan E Titan Tornado · Mechanicsville, VA · Accident · No injuries · Data collection · Final report · Nov 29, 2017 · N50F · Substantial damage
  > The pilot’s inadequate preflight inspection and failure to detect water contamination in the fuel system, which resulted in a partial loss of engine power on takeoff.
- [NTSB WPR18LA030](https://openairdocs.org/ntsb/WPR18LA030.md): Vanderark RV-10 · Sun Lakes, AZ · Accident · No injuries · Limited investigation · Final report · Nov 12, 2017 · N917VA · Substantial damage
  > The fatigue fractures of the upper and lower alternator attachment bolts, which decreased the common drive belt tension and resulted in the subsequent in-flight separation of an alternator drive belt, the overheating of the engine, and the subsequent total…
- [NTSB ANC18LA008](https://openairdocs.org/ntsb/ANC18LA008.md): Cloud Jeffrey Ferrell Long EZ · Eufaula, AL · Accident · No injuries · Limited investigation · Final report · Nov 11, 2017 · N754T · Substantial damage
  > The in-flight separation of a portion of the propeller, which subsequently penetrated the right rudder, as a result of the failure of the bond line between two of the propeller’s wood layers. Contributing to the failure of the propeller was the manufacturer’s…
- [NTSB GAA18CA033](https://openairdocs.org/ntsb/GAA18CA033.md): Evolution Revo · Berlin, NH · Accident · No injuries · Data collection · Final report · Oct 29, 2017 · N401HK · Substantial damage
  > The pilot’s failure to center the ground steering before landing, which resulted in a loss of directional control.
- [NTSB GAA18CA011](https://openairdocs.org/ntsb/GAA18CA011.md): Dehavilland DHC 1 · Cedartown, GA · Accident · No injuries · Data collection · Final report · Oct 12, 2017 · N323WG · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll.
- [NTSB WPR18LA006](https://openairdocs.org/ntsb/WPR18LA006.md): Nanchang China CJ 6 · Buckeye, AZ · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 9, 2017 · N8NW · Substantial damage
  > The failure of the fuel pump’s diaphragm which resulted in fuel system contamination from air and or oil and caused the engine to lose power.
- [NTSB ERA17LA340](https://openairdocs.org/ntsb/ERA17LA340.md): Waco UPF 7 · Ocklawaha, FL · Accident · Minor injuries · Limited investigation · Final report · Sep 28, 2017 · N29909 · Substantial damage
  > A failure of both magnetos due to multiple deficiencies, which resulted in a total loss of engine power.
- [NTSB WPR17LA214](https://openairdocs.org/ntsb/WPR17LA214.md): SC Aerostar YAK 52W · El Cajon, CA · Accident · No injuries · Limited investigation · Final report · Sep 23, 2017 · N52KF · Substantial damage
  > The pilot's failure to maintain directional control during taxi after a reduction in braking performance and steering capabilities due to his failure to reopen the air supply valve after the nonstandard engine start.
- [NTSB CEN17LA365](https://openairdocs.org/ntsb/CEN17LA365.md): Gaddis Michael Exec 162 F · Plymouth, IN · Accident · No injuries · Limited investigation · Final report · Sep 16, 2017 · N123XZ · Substantial damage
  > A failure of the drive belt for reasons that could not be determined based on the available information.
- [NTSB GAA17CA512](https://openairdocs.org/ntsb/GAA17CA512.md): Aviat A 1 · Cody, WY · Accident · No injuries · Data collection · Final report · Aug 28, 2017 · N335SB · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll.
- [NTSB ERA17FA274](https://openairdocs.org/ntsb/ERA17FA274.md): Bell 407 · Charlottesville, VA · Accident · 2 fatal · Field investigation · Final report · Aug 12, 2017 · N31VA · Destroyed
  > The pilot's loss of helicopter control after entry into vortex ring state, leading to a high rate of descent to the ground with a right spin. Contributing to the accident was the pilot's lack of recent and recurrent training in vortex ring state recognition…
- [NTSB ERA17FA265](https://openairdocs.org/ntsb/ERA17FA265.md): North Wing Freedom · Green Township, NJ · Accident · 1 fatal · Field investigation · Final report · Aug 6, 2017 · N2854L · Substantial damage
  > The pilot's improper preflight setup of the aircraft's foldable wing, during which he incorrectly attached a nylon strap loop pull handle, instead of the steel cable shackle at the end of the strap, to its mounting hook. The nylon strap failed in flight,…
- [NTSB CEN17LA312](https://openairdocs.org/ntsb/CEN17LA312.md): Ralph Marine Devil DOG · Danville, AR · Accident · No injuries · Limited investigation · Final report · Aug 3, 2017 · N165AB · Substantial damage
  > A separation of the left tire from its wheel because of the use of an improper substance and wheel size, which resulted in a loss of directional control during landing.
- [NTSB ERA17LA263](https://openairdocs.org/ntsb/ERA17LA263.md): Sikorsky S-97A · Jupiter, FL · Accident · Minor injuries · Limited investigation · Final report · Aug 2, 2017 · N971SK · Substantial damage
  > A design change in the helicopter's fly-by-wire control system that resulted in an increase in the sensitivity of the cyclic stick while transitioning from ground to flight mode, magnifying the pilot's control inputs, which resulted in unintentional over…
- [NTSB GAA17CA467](https://openairdocs.org/ntsb/GAA17CA467.md): James D Riggs RV-10 · Lawrenceburg, TN · Accident · Serious injuries · Data collection · Final report · Jul 30, 2017 · N616JJ · Substantial damage
  > The pilot’s improper landing flare and failure to maintain yaw control during a go-around in gusting wind conditions.
- [NTSB GAA17CA460](https://openairdocs.org/ntsb/GAA17CA460.md): Cessna 305 · Eagle Lake, TX · Accident · No injuries · Data collection · Final report · Jul 29, 2017 · N72BD · Substantial damage
  > The pilot’s loss of directional control during landing in variable wind conditions.
- [NTSB GAA17CA480](https://openairdocs.org/ntsb/GAA17CA480.md): Thomas J Hankamp VAN'S Aircraft RV4 · Poughkeepsie, NY · Accident · No injuries · Data collection · Final report · Jul 28, 2017 · N9214 · Substantial damage
  > The pilot’s failure to maintain directional control during takeoff.
- [NTSB CEN17LA285](https://openairdocs.org/ntsb/CEN17LA285.md): Hillard Charlie R Hawker FB60 · Breckenridge, TX · Accident · Serious injuries · Limited investigation · Final report · Jul 25, 2017 · N254SF · Substantial damage
  > A total loss of engine power for reasons that could not be determined because postaccident engine examination and testing did not reveal any mechanical malfunctions or anomalies that would have precluded normal operation.
- [NTSB WPR17LA153](https://openairdocs.org/ntsb/WPR17LA153.md): Clark James T Vans RV8 · Spokane, WA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 14, 2017 · N559JC · Substantial damage
  > An inflight engine fire for reasons that could not be determined based on the available information, which melted the air filter element and obstructed the engine's air intakes, resulting in a total loss of engine power.
- [NTSB WPR17LA141](https://openairdocs.org/ntsb/WPR17LA141.md): Vickers Supermaine Ltd · Marana, AZ · Accident · No injuries · Limited investigation · Final report · Jul 4, 2017 · N5TF · Substantial damage
  > The pilot’s failure to maintain directional control of the airplane during the landing roll.
- [NTSB CEN17LA228](https://openairdocs.org/ntsb/CEN17LA228.md): Thompson Angel Hawk II · Homer, LA · Accident · Serious injuries · Limited investigation · Final report · Jun 9, 2017 · N335JT · Substantial damage
  > A total loss of engine power due to the engine’s unresolved high operating temperatures, which resulted in failure of the distributor rotor and drive shaft, and the pilot’s failure to maintain airspeed during the subsequent forced landing, which resulted in…
- [NTSB WPR17LA121](https://openairdocs.org/ntsb/WPR17LA121.md): Bob Frederick Titan T-51 · Goodyear, AZ · Accident · No injuries · Limited investigation · Final report · Jun 4, 2017 · N51FB · Substantial damage
  > Failure of the propeller speed reduction gearbox input drive gear during the airplane’s initial climb for reasons that could not be determined due to extensive damage.
- [NTSB CEN17FA208](https://openairdocs.org/ntsb/CEN17FA208.md): Michael S. Logan Kitfox · New Berlin, TX · Accident · 1 fatal · Field investigation · Final report · Jun 3, 2017 · N956ML · Destroyed
  > A total loss of engine power for reasons that could not be determined based on the available information, and the pilot's subsequent failure to maintain adequate airspeed, which resulted in the airplane exceeding its critical angle of attack and experiencing…
- [NTSB ERA17TA196](https://openairdocs.org/ntsb/ERA17TA196.md): Ernest T Christley Zenith Zodiac 601XL · Sanford, NC · Accident · No injuries · Final report · May 29, 2017 · N167EZ · Substantial damage
  > The pilot’s selection of a threaded metal rod of insufficient strength to connect the fuel tank selector handle to the fuel valve, which resulted in his inability to switch fuel tanks and a subsequent total loss of engine power due to fuel starvation.
- [NTSB GAA17CA299](https://openairdocs.org/ntsb/GAA17CA299.md): Thomas E Hudzinski Backcountry Super CR · Talkeetna, AK · Accident · No injuries · Data collection · Final report · May 21, 2017 · N484WT · Substantial damage
  > The pilot’s failure to maintain a proper airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.
- [NTSB ANC17CA023](https://openairdocs.org/ntsb/ANC17CA023.md): Wsk-Pzl Warzawa-Okecie PZL 104 Wilga 80 · Talkeetna, AK · Accident · No injuries · Data collection · Final report · May 14, 2017 · N9726N · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll. Contributing to the accident were the pilot's lack of training and experience in the accident make and model airplane.
- [NTSB GAA17CA272](https://openairdocs.org/ntsb/GAA17CA272.md): John Murphy JSX-2 · Chesterfield, MO · Accident · No injuries · Data collection · Final report · May 7, 2017 · N458V · Substantial damage
  > The pilot’s failure to ensure that the canopy was properly secured before takeoff, which resulted in an unstable landing flare and hard landing.
- [NTSB GAA17CA273](https://openairdocs.org/ntsb/GAA17CA273.md): Adrian George W Europa Classic · Wellington, KS · Accident · No injuries · Data collection · Final report · May 5, 2017 · N7854M · Substantial damage
  > The pilot’s improper landing flare and exceedance of the airplane’s critical angle of attack during landing, which resulted in an aerodynamic stall.
- [NTSB GAA17CA257](https://openairdocs.org/ntsb/GAA17CA257.md): Nelson Sydney Vans Acft RV8A · Englewood, CO · Accident · Minor injuries · Data collection · Final report · May 4, 2017 · N832SD · Substantial damage
  > The pilot's improper landing flare and inadvertent selection of the mixture control, which resulted in a hard, bounced landing during gusting crosswind wind conditions.
- [NTSB GAA17CA251](https://openairdocs.org/ntsb/GAA17CA251.md): Bender Joseph KIT Rotoway · Wheatland, WY · Accident · No injuries · Data collection · Final report · Apr 30, 2017 · N164JB · Substantial damage
  > The pilot's decision to operate the helicopter in gusting wind and high-density altitude conditions and his positioning of the helicopter such that it resulted in a right quartering tailwind, which resulted in a loss of helicopter control due to a loss of…
- [NTSB WPR17LA094](https://openairdocs.org/ntsb/WPR17LA094.md): Yakovlev YAK 52 · Porterville, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 29, 2017 · N132MD · Substantial damage
  > A partial loss of engine power due to contaminants in the fuel system that decreased the fuel flow, the source of which could not be determined.
- [NTSB WPR17FA091](https://openairdocs.org/ntsb/WPR17FA091.md): Nanchang CJ6A · Keene, CA · Accident · 1 fatal · Field investigation · Final report · Apr 27, 2017 · N192NG · Destroyed
  > The pilot's failure to maintain airplane control following a descent into clouds.
- [NTSB WPR17FA089](https://openairdocs.org/ntsb/WPR17FA089.md): Appleby Nieuport 28 · Paso Robles, CA · Accident · 1 fatal · Field investigation · Final report · Apr 23, 2017 · N6190 · Substantial damage
  > The failure of unknown personnel to properly safety an elevator control cable turnbuckle, which disconnected in flight resulting in loss of pitch control. Contributing to the accident was the inadequate design of the experimental airplane, which did not…
- [NTSB CEN17LA149](https://openairdocs.org/ntsb/CEN17LA149.md): Aero Adventure Aventura UL · Garden Ridge, TX · Accident · Serious injuries · Limited investigation · Final report · Apr 4, 2017 · N580TX · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB GAA17CA208](https://openairdocs.org/ntsb/GAA17CA208.md): Dempsey Daniel M Zodiac CH601XLB · Louisa, VA · Accident · No injuries · Data collection · Final report · Mar 25, 2017 · N978ER · Substantial damage
  > The pilot’s in-flight fuel mismanagement and subsequent failure to maintain adequate airspeed while attempting to land on the runway, which resulted in an aerodynamic stall and a hard landing.
- [NTSB GAA17CA184](https://openairdocs.org/ntsb/GAA17CA184.md): CSP Leasing Cavalon · Santa Maria, CA · Accident · No injuries · Data collection · Final report · Mar 10, 2017 · N425AG · Substantial damage
  > The student pilot’s improper landing flare and subsequent failure to maintain crosswind correction during landing in crosswind conditions.
- [NTSB GAA17CA179](https://openairdocs.org/ntsb/GAA17CA179.md): Burkhart Grob G 109B · Mokuleia, HI · Accident · No injuries · Data collection · Final report · Mar 8, 2017 · N109FH · Substantial damage
  > The failure of the upper rudder hinge during flight due to severe corrosion. Contributing to the accident were the pilot’s inadequate preflight inspection and the lack of an annual inspection.
- [NTSB CEN17LA117](https://openairdocs.org/ntsb/CEN17LA117.md): Jude Mike C Side Winder · Paynesville, MN · Accident · Serious injuries · Limited investigation · Final report · Mar 4, 2017 · N7524V · Substantial damage
  > The pilot’s inadequate preflight inspection, during which he failed to ensure that there was sufficient coolant in the engine reservoir, which resulted in the engine getting too hot and the engine control module shutting down the engine.
- [NTSB WPR17LA067](https://openairdocs.org/ntsb/WPR17LA067.md): Guarino Vans · Marysville, CA · Accident · Minor injuries · Limited investigation · Final report · Feb 24, 2017 · N470LM · Substantial damage
  > A partial loss of engine power for reasons that could not be determined due to the fragmentation of the electrical system.
- [NTSB ERA17LA105](https://openairdocs.org/ntsb/ERA17LA105.md): S C Aerostar S A YAK 52 · St. Elmo, AL · Accident · No injuries · Limited investigation · Final report · Feb 1, 2017 · N624PT · Substantial damage
  > The failure of the right main landing gear uplock actuator due to corrosion.
- [NTSB CEN17LA092](https://openairdocs.org/ntsb/CEN17LA092.md): Zenith CH750 Stol · Jennings, LA · Accident · Minor injuries · Limited investigation · Final report · Jan 30, 2017 · N1972C · Substantial damage
  > A failure of the right fuel tank to supply fuel to the engine for reasons that could not be determined, which resulted in a total loss of engine power due to fuel starvation.

## 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 year(c."eventDate") = 2017
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=99999&year=2017

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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.