# NTSB investigations: Amateur-built UNKNOWN ENG

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 11 of 41 · 2,048 cases

## Cases, newest first

- [NTSB WPR13LA360](https://openairdocs.org/ntsb/WPR13LA360.md): Versteeg Helicycle · Richland, WA · Accident · No injuries · Limited investigation · Final report · Aug 5, 2013 · N234RV · Substantial damage
  > The pilot’s failure to maintain helicycle control during hover due to an inadvertent control input.
- [NTSB CEN13FA465](https://openairdocs.org/ntsb/CEN13FA465.md): Air Tractor AT-400 · Balko, OK · Accident · 1 fatal · Field investigation · Final report · Aug 5, 2013 · N3159B · Destroyed
  > The pilot's failure maintain clearance from a meteorological tower while en route at a low altitude. Contributing to the accident was the sun's glare.
- [NTSB ERA13LA320](https://openairdocs.org/ntsb/ERA13LA320.md): Thompson Bruce D Sonerai II · Pulaski, TN · Accident · 1 fatal · Limited investigation · Final report · Jul 16, 2013 · N788T · Destroyed
  > The pilot's failure to maintain airspeed during a near-vertical climb after takeoff, which resulted in an aerodynamic stall and subsequent collision with terrain.
- [NTSB CEN13LA418](https://openairdocs.org/ntsb/CEN13LA418.md): Marino Benoist Type XIV · Duluth, MN · Accident · No injuries · Limited investigation · Final report · Jul 16, 2013 · N613LD · Substantial damage
  > The pilot's failure to maintain control of the seaplane during its initial flight test. Contributing to the accident was the pilot's overall lack of flight experience in the seaplane.
- [NTSB ERA13FA309](https://openairdocs.org/ntsb/ERA13FA309.md): Nanchang China CJ-6A · Ocean City, MD · Accident · 2 fatal · Field investigation · Final report · Jun 30, 2013 · N116RL · Destroyed
  > The pilot's failure to terminate the intentional aerobatic spin at an altitude adequate to prevent impacting the water. Contributing to the accident was the pilot's loss of situational awareness due to target fixation during the prolonged aerobatic maneuver.
- [NTSB CEN13LA383](https://openairdocs.org/ntsb/CEN13LA383.md): Vink Robert D Youngster · Grand Haven, MI · Accident · Serious injuries · Limited investigation · Final report · Jun 30, 2013 · N258RV · Substantial damage
  > The loss of engine power due to carburetor icing.
- [NTSB CEN13LA368](https://openairdocs.org/ntsb/CEN13LA368.md): Nanchang China CJ-6 · Wolcott, CO · Accident · 2 fatal · Limited investigation · Final report · Jun 23, 2013 · N2726C · Substantial damage
  > The pilots decision to perform an aerobatic maneuver at a low altitude from which he was unable to recover.
- [NTSB ERA13LA288](https://openairdocs.org/ntsb/ERA13LA288.md): Hagerty RV-7A · Altoona, PA · Accident · Serious injuries · Limited investigation · Final report · Jun 15, 2013 · N954CH · Substantial damage
  > The pilot's improper recovery from an encounter with a wind gust during landing, which resulted in a hard landing on, and displacement of, the nose landing gear and a subsequent runway excursion and noseover.
- [NTSB CEN13LA346](https://openairdocs.org/ntsb/CEN13LA346.md): Rogers T-51 Mustang KIT · St Francis, KS · Accident · No injuries · Limited investigation · Final report · Jun 11, 2013 · N548RR · Substantial damage
  > Foreign debris in the propeller governor, which led to excessive wear in the governor and its subsequent in-flight failure.
- [NTSB ERA13LA263](https://openairdocs.org/ntsb/ERA13LA263.md): Wilson William M Cricket MC12 · Doylestown, PA · Accident · 1 fatal · Limited investigation · Final report · Jun 1, 2013 · N2SZ · Substantial damage
  > The pilot's failure to abort the takeoff after detecting the airplane’s degraded performance. Contributing to the accident were the likely loss of power from the left engine for reasons that could not be determined during the postaccident examination of the…
- [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 CEN13CA278](https://openairdocs.org/ntsb/CEN13CA278.md): Balloon Works Firefly 8B-15 · Anthony, KS · Accident · No injuries · Data collection · Final report · May 11, 2013 · N3171L · Substantial damage
  > The pilot’s failure to monitor the balloon's altitude, which resulted in the balloon impacting an airport rotating beacon tower.
- [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 ERA13FA219](https://openairdocs.org/ntsb/ERA13FA219.md): Daniels Dominator · Valkaria, FL · Accident · 1 fatal · Field investigation · Final report · Apr 29, 2013 · N85KY · Substantial damage
  > The pilot’s failure to maintain adequate power and airspeed, which resulted in a loss of control, abrupt descent, and impact with terrain. Contributing to the accident was the pilot’s failure to obtain adequate experience in the gyroplane before making the…
- [NTSB ERA13CA206](https://openairdocs.org/ntsb/ERA13CA206.md): Poole Robert C JR Van's · Salisbury, NC · Accident · Minor injuries · Data collection · Final report · Apr 17, 2013 · N439RP · Substantial damage
  > The pilot's improper landing flare, which resulted in a hard landing, and his subsequent decision to exit the paved runway onto the soft terrain.
- [NTSB CEN13LA220](https://openairdocs.org/ntsb/CEN13LA220.md): Walker Phil RV-6A · Spearfish, SD · Accident · Minor injuries · Limited investigation · Final report · Apr 4, 2013 · N525PW · Substantial damage
  > The coil-distributor wire loosening in flight, which rendered the ignition system inoperative and subsequently caused the loss of engine power.
- [NTSB WPR13LA147](https://openairdocs.org/ntsb/WPR13LA147.md): Franklin Glasair II · Spanish Fork, UT · Accident · Minor injuries · Limited investigation · Final report · Mar 12, 2013 · N61RA · Substantial damage
  > A loss of engine power due to fuel starvation, which likely resulted from air being introduced into the fuel system through the worn shaft of an electric fuel boost pump.
- [NTSB ANC13FA030](https://openairdocs.org/ntsb/ANC13FA030.md): Beech 1900C · Aleknagik, AK · Accident · 2 fatal · Field investigation · Final report · Mar 8, 2013 · N116AX · Destroyed
  > The flight crew's failure to maintain terrain clearance, which resulted in controlled flight into terrain in instrument meteorological conditions. Contributing to the accident were the flight crew's failure to correctly read back and interpret clearance…
- [NTSB CEN13LA186](https://openairdocs.org/ntsb/CEN13LA186.md): Fisher Michael E Celebrity · Terrell, TX · Accident · 1 fatal · Limited investigation · Final report · Mar 4, 2013 · N70785 · Destroyed
  > The pilot’s exceedance of the airplane’s design stress limits while performing aerobatic maneuvers.
- [NTSB WPR13LA134](https://openairdocs.org/ntsb/WPR13LA134.md): Blumer Challenger II Spec · Peoria, AZ · Accident · No injuries · Limited investigation · Final report · Feb 26, 2013 · N107BW · Substantial damage
  > A cracked cooling fan housing, which led to a malfunction of the ignition system and a loss of engine power during the landing approach.
- [NTSB ERA13LA126](https://openairdocs.org/ntsb/ERA13LA126.md): Mccowan Steve A Shttd · Montrose, GA · Accident · No injuries · Limited investigation · Final report · Feb 4, 2013 · N4201S · Substantial damage
  > A total loss of engine power during cruise flight due to the separation of the No. 2 piston connecting rod.
- [NTSB WPR13LA099](https://openairdocs.org/ntsb/WPR13LA099.md): Goetz Helicycle · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · Jan 22, 2013 · N143PG · Substantial damage
  > The pilot's failure to properly install and secure the wire connecting the electronic speed controller unit to the fuel controller actuator motor, which resulted in the wire’s disconnection in flight and the resultant partial loss of engine power.
- [NTSB ERA13CA107](https://openairdocs.org/ntsb/ERA13CA107.md): Brewer James M KR2 · Bear Branch, KY · Accident · No injuries · Data collection · Final report · Jan 7, 2013 · N216CB · Substantial damage
  > The pilot’s improper preflight planning, which resulted in a total loss of engine power due to fuel exhaustion. Contributing to the fuel exhaustion was the pilot’s lack of knowledge about the airplane’s total fuel capacity and fuel quantity instrumentation.
- [NTSB WPR13FA076](https://openairdocs.org/ntsb/WPR13FA076.md): Mckenzie Lancair IV-P Turbine · Lakeside, CA · Accident · 3 fatal · Field investigation · Final report · Dec 29, 2012 · N5M · Substantial damage
  > The pilot’s failure to maintain airspeed while attempting a visual climb through a broken cloud layer, which resulted in a stall/spin.
- [NTSB ERA13CA098](https://openairdocs.org/ntsb/ERA13CA098.md): Mckay Gene RV-9A · Brunswick, GA · Accident · Minor injuries · Data collection · Final report · Dec 26, 2012 · N281MC · Substantial damage
  > The pilot’s failure to maintain airplane control while landing in gusting wind conditions.
- [NTSB CEN13LA116](https://openairdocs.org/ntsb/CEN13LA116.md): Seguine Swift II · San Antonio, TX · Accident · Serious injuries · Limited investigation · Final report · Dec 24, 2012 · N84NS · Substantial damage
  > The pilot's failure to attain a proper pitch attitude and airspeed during initial climb, which resulted in an aerodynamic stall.
- [NTSB CEN13LA032](https://openairdocs.org/ntsb/CEN13LA032.md): Aerostar International RX8 · Albuquerque, NM · Accident · Minor injuries · Limited investigation · Final report · Oct 10, 2012 · N90550 · Substantial damage
  > The pilot’s failure to attain the desired touchdown point because of wind conditions and surrounding obstructions, which resulted in the balloon impacting a fence during the approach to landing.
- [NTSB CEN13FA006](https://openairdocs.org/ntsb/CEN13FA006.md): Beech A36 · Mabank, TX · Accident · 4 fatal · Field investigation · Final report · Oct 6, 2012 · N32GP · Destroyed
  > The pilot's loss of airplane control while maneuvering in instrument meteorological conditions.
- [NTSB ERA12CA588](https://openairdocs.org/ntsb/ERA12CA588.md): Henrie Raymond Zenith CH 701 Stol · Ashland, MS · Accident · Minor injuries · Data collection · Final report · Sep 29, 2012 · N234RH · Substantial damage
  > The pilot’s inadequate compensation for crosswind conditions during initial climb, which resulted in an impact with trees and terrain.
- [NTSB ERA12LA586](https://openairdocs.org/ntsb/ERA12LA586.md): Stewart Mw/Stewart JD Sonerai 2L · Titusville, FL · Accident · No injuries · Limited investigation · Final report · Sep 20, 2012 · N127JS · Substantial damage
  > The pilot's failure to attain the proper landing approach speed and touchdown point, which resulted in a runway excursion after touchdown and collision with a ditch.
- [NTSB CEN12LA668](https://openairdocs.org/ntsb/CEN12LA668.md): Thompson RV-6 · Pagosa Springs, CO · Accident · No injuries · Limited investigation · Final report · Sep 20, 2012 · N140RV · Substantial damage
  > The pilot’s failure to maintain directional control of the airplane during the landing roll. Contributing to the accident was the pilot’s lack of landing experience at high density altitudes.
- [NTSB WPR12CA427](https://openairdocs.org/ntsb/WPR12CA427.md): Boeing A75N1(PT17) · Lincoln, CA · Accident · No injuries · Data collection · Final report · Sep 19, 2012 · N4777V · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop.
- [NTSB ERA12FA565](https://openairdocs.org/ntsb/ERA12FA565.md): Yakovlev YAK 52 · Brownsboro, AL · Accident · 2 fatal · Field investigation · Final report · Sep 16, 2012 · N2207X · Substantial damage
  > The pilot's loss of control while performing a low-level aerobatic maneuver, which resulted in collision with terrain.
- [NTSB CEN12LA636](https://openairdocs.org/ntsb/CEN12LA636.md): JDT Mini-Max 1500R · Cameron, MO · Accident · 1 fatal · Limited investigation · Final report · Sep 16, 2012 · N3533D · Substantial damage
  > The pilot's failure to maintain adequate airspeed during initial climb, which resulted in an aerodynamic stall and spin at a low altitude.
- [NTSB ERA12CA551](https://openairdocs.org/ntsb/ERA12CA551.md): Holloman L B/Holloman E M Sonex · Chapmansboro, TN · Accident · Minor injuries · Data collection · Final report · Sep 6, 2012 · N484PC · Substantial damage
  > The pilot’s failure to maintain directional control during the takeoff initial climb.
- [NTSB ERA12CA547](https://openairdocs.org/ntsb/ERA12CA547.md): Costruzioni Aeronautiche Tecna P92 Tail Dragger · Elizabethtown, KY · Accident · Minor injuries · Data collection · Final report · Sep 5, 2012 · N237TA · Substantial damage
  > The pilot’s failure to maintain directional control of the tailwheel-equipped airplane during a takeoff in gusty crosswind conditions. Contributing to the accident was the pilot's decision to take off in gusty wind conditions associated with approaching…
- [NTSB CEN12IA592](https://openairdocs.org/ntsb/CEN12IA592.md): British Aerospace BAE Jetstream 3101 · Kansas City, MO · Incident · No injuries · Incident investigation · Final report · Aug 29, 2012 · N695MA · Minor damage
  > The flight crew’s failure to ensure that the cargo door was properly fastened before departure.
- [NTSB CEN12CA588](https://openairdocs.org/ntsb/CEN12CA588.md): Trick Trikes Stss · Wanamingo, MN · Accident · Minor injuries · Data collection · Final report · Aug 26, 2012 · N5152E · Substantial damage
  > The pilot's failure to maintain adequate airspeed while maneuvering at low altitude, which resulted in an aerodynamic stall.
- [NTSB ERA12CA533](https://openairdocs.org/ntsb/ERA12CA533.md): Stearman M-2 · Robbinsville, NJ · Accident · Minor injuries · Data collection · Final report · Aug 24, 2012 · N9055 · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll.
- [NTSB CEN12LA566](https://openairdocs.org/ntsb/CEN12LA566.md): Thorp T-18 · Gilmer, TX · Accident · Serious injuries · Limited investigation · Final report · Aug 21, 2012 · N2443 · Substantial damage
  > The disconnected metering unit fuel line, which resulted in a loss of engine power.
- [NTSB WPR12CA358](https://openairdocs.org/ntsb/WPR12CA358.md): Boughner R 80 Tiger Moth · Ramona, CA · Accident · Serious injuries · Data collection · Final report · Aug 14, 2012 · N615SX · Substantial damage
  > The pilot’s improper fuel management, which resulted in a loss of engine power due to fuel starvation.
- [NTSB CEN12LA626](https://openairdocs.org/ntsb/CEN12LA626.md): Ison Eros · Schoolcraft, MI · Accident · No injuries · Limited investigation · Final report · Aug 12, 2012 · N4007B · Substantial damage
  > The operation of an airplane by a non-certificated pilot and his failure to maintain airplane control during the initial climb, which resulted in an uncontrolled decent.
- [NTSB CEN12LA637](https://openairdocs.org/ntsb/CEN12LA637.md): Sackman Sackman Special · Ste. Genevieve, MO · Accident · No injuries · Limited investigation · Final report · Aug 11, 2012 · N4760R · Substantial damage
  > The loss of engine power during a low level maneuver due to oil starvation for reasons that could not be determined during postaccident examination.
- [NTSB CEN12LA530](https://openairdocs.org/ntsb/CEN12LA530.md): Williams John T-51 Mustang · Oshkosh, WI · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 2012 · N151TA · Substantial damage
  > The separation of an engine cooling hose from the radiator.
- [NTSB WPR12CA344](https://openairdocs.org/ntsb/WPR12CA344.md): Rotorway Exec · Colville, WA · Accident · No injuries · Data collection · Final report · Aug 5, 2012 · N156RW · Substantial damage
  > The pilot's lack of experience in the helicopter, which resulted in his failure to maintain ground clearance during the taxi hover, followed by inadvertent ground contact and rollover.
- [NTSB CEN12CA597](https://openairdocs.org/ntsb/CEN12CA597.md): Bordelon Bruce Kitfox IV · Castlerock, MN · Accident · No injuries · Data collection · Final report · Jul 31, 2012 · N396BK · Destroyed
  > Propeller system failure during a go-around maneuver resulting in a forced landing. Contributing to the severity of damage to the airplane was the postimpact fire.
- [NTSB CEN12CA482](https://openairdocs.org/ntsb/CEN12CA482.md): Nelson Miles Sky Star Kitfox · Weatherford, TX · Accident · No injuries · Data collection · Final report · Jul 25, 2012 · N4454U · Substantial damage
  > The pilot's failure to maintain directional control during the landing flare. Contributing to the accident was the pilot’s delay in aborting the landing.
- [NTSB WPR12CA320](https://openairdocs.org/ntsb/WPR12CA320.md): Piper PA-30 · Yelm, WA · Accident · No injuries · Data collection · Final report · Jul 22, 2012 · N8574Y · Substantial damage
  > The pilot's failure to maintain an adequate airspeed on approach and his inadequate flare, which resulted in a hard landing.
- [NTSB CEN12CA469](https://openairdocs.org/ntsb/CEN12CA469.md): Purtee Kevin M Pietenpol Aircamper · Broadhead, WI · Accident · Serious injuries · Data collection · Final report · Jul 22, 2012 · N899KP · Substantial damage
  > The pilot's failure to adequately remove water-contaminated fuel during the preflight inspection, which resulted in a total loss of engine power during takeoff, and his decision to initiate a turn back to the runway with insufficient airspeed, which resulted…
- [NTSB CEN12FA462](https://openairdocs.org/ntsb/CEN12FA462.md): Nanchang China CJ-6A · Walsenburg, CO · Accident · 2 fatal · Field investigation · Final report · Jul 21, 2012 · N96YK · Substantial damage
  > The pilot's failure to maintain airplane control while turning from base to final leg in the traffic pattern.

Next page: https://openairdocs.org/ntsb.md?engine=99999&page=12

## 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 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&page=11

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