# NTSB investigations: Amateur-built UNKNOWN ENG, 2016

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 ERA17LA077](https://openairdocs.org/ntsb/ERA17LA077.md): Beech 76 · Dunnellon, FL · Accident · No injuries · Limited investigation · Final report · Dec 30, 2016 · N6627U · Substantial damage
  > An inadequate 100-hour maintenance inspection that failed to detect and correct loose nuts on a single-drive dual magneto, which led to the subsequent separation of the magneto from the engine during initial climb and the total loss of engine power.
- [NTSB CEN17LA061](https://openairdocs.org/ntsb/CEN17LA061.md): Mead RV 8A · Farmington, MO · Accident · Minor injuries · Limited investigation · Final report · Dec 27, 2016 · N918KS · Substantial damage
  > The pilot's failure to maintain airplane control during takeoff in crosswind conditions.
- [NTSB ANC17LA013](https://openairdocs.org/ntsb/ANC17LA013.md): Robinson Helicopter R22 · Palmer, AK · Accident · Minor injuries · Limited investigation · Final report · Dec 18, 2016 · N121MR · Substantial damage
  > The pilot's failure to maintain main rotor revolutions per minute (RPM) during a pinnacle landing, which resulted in a main rotor stall condition, a loss of control, and a subsequent impact with terrain. A contributing factor was the flight instructor's…
- [NTSB ERA17LA069](https://openairdocs.org/ntsb/ERA17LA069.md): Beech A36 · Shoreham, NY · Accident · No injuries · Limited investigation · Final report · Dec 11, 2016 · N69286 · Substantial damage
  > A fatigue crack of the crankshaft at the No. 4 main bearing journal.
- [NTSB CEN17LA055](https://openairdocs.org/ntsb/CEN17LA055.md): Hiller OH 23B · Tynan, TX · Accident · Serious injuries · Limited investigation · Final report · Dec 10, 2016 · N5776 · Destroyed
  > The student pilot's delayed and improper landing flare during a practice autorotation, which resulted in the tail rotor striking terrain.
- [NTSB WPR17LA032](https://openairdocs.org/ntsb/WPR17LA032.md): Hoskins Lonnie F Velocity XL RG · Petaluma, CA · Accident · Minor injuries · Limited investigation · Final report · Dec 4, 2016 · N84KJ · Substantial damage
  > The pilot’s failure to maintain adequate airspeed during an aborted landing, which resulted in an exceedance of the airplane’s critical angle of attack and an inadvertent aerodynamic stall. Contributing to the accident was the pilot’s distraction while on…
- [NTSB ANC17LA008](https://openairdocs.org/ntsb/ANC17LA008.md): Airborne Extreme SQ-12 · Palmer, AK · Accident · No injuries · Limited investigation · Final report · Nov 25, 2016 · N37PX · Substantial damage
  > The fuel injector manufacturer's inappropriate guidance to use a 5-ampere circuit breaker in place of the required 10-ampere circuit breaker on the fuel injector circuit, which resulted in the circuit breaker opening, a loss of electrical power to the…
- [NTSB ERA17FA050](https://openairdocs.org/ntsb/ERA17FA050.md): Curtiss JN4 · Williamson, GA · Accident · 2 fatal · Field investigation · Final report · Nov 17, 2016 · N1662 · Destroyed
  > The in-flight failure of the propeller due to excessive engine vibration loads and the use of an incorrectly-sized propeller, which resulted in a fatigue crack of the leading edge strip. Contributing to the accident was the inadequate repair of the propeller…
- [NTSB ANC17LA006](https://openairdocs.org/ntsb/ANC17LA006.md): Piper PA32R · Bethel, AK · Accident · Minor injuries · Limited investigation · Final report · Nov 12, 2016 · N9084J · Substantial damage
  > A total loss of engine power due to oil starvation, which resulted from an oil cooler leak at a fractured brazed seam.
- [NTSB GAA17CA073](https://openairdocs.org/ntsb/GAA17CA073.md): Carter Richard L Buddy Baby Lakes · Hurricane, UT · Accident · No injuries · Data collection · Final report · Nov 10, 2016 · N1028Q · Substantial damage
  > The pilot's failure to maintain directional control during takeoff, which resulted in a runway excursion.
- [NTSB GAA17CA034](https://openairdocs.org/ntsb/GAA17CA034.md): Yakovlev YAK · Tracy, CA · Accident · No injuries · Data collection · Final report · Oct 23, 2016 · N38YK · Substantial damage
  > The pilot’s unstabilized approach and delayed application of full throttle for a go-around, which resulted in an uncontrolled descent.
- [NTSB ERA17FA027](https://openairdocs.org/ntsb/ERA17FA027.md): Nanchang CJ6 · Blackshear, GA · Accident · 1 fatal · Field investigation · Final report · Oct 21, 2016 · N10EB · 2 aircraft · Substantial damage
  > The Bama 3 pilot's failure to properly conduct an overshoot maneuver and his premature climb before he was clear of the lead airplane, Bama 1, which lead to a midair collision
- [NTSB ERA17CA013](https://openairdocs.org/ntsb/ERA17CA013.md): Mickler Larry J RV6 A · Bell, FL · Accident · Serious injuries · Data collection · Final report · Oct 11, 2016 · N686RM · Substantial damage
  > The pilot's inadequate compensation for gusting crosswinds, which resulted in a bounced landing and nose-over.
- [NTSB ERA17LA007](https://openairdocs.org/ntsb/ERA17LA007.md): James Bruton Flying Flea · Plymouth, CT · Accident · Serious injuries · Limited investigation · Final report · Oct 6, 2016 · N83165 · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on the available information.
- [NTSB GAA17CA052](https://openairdocs.org/ntsb/GAA17CA052.md): Chaudoin George S RV 10 · Portsmouth, NH · Accident · No injuries · Data collection · Final report · Oct 4, 2016 · N710GC · Substantial damage
  > The pilot’s failure to go around after recognizing that the airplane was high and fast, which resulted in a long landing on a wet runway and a runway excursion.
- [NTSB WPR16LA181](https://openairdocs.org/ntsb/WPR16LA181.md): Dehavilland DH115 Vampire · Reno, NV · Accident · No injuries · Limited investigation · Final report · Sep 17, 2016 · N4861K · Substantial damage
  > The in-flight failure of the canopy and subsequent loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine revealed no anomalies that would have precluded normal operation.
- [NTSB GAA16CA489](https://openairdocs.org/ntsb/GAA16CA489.md): Burkhart Grob Flugzeugbau G109 · Emigrant Gap, CA · Accident · No injuries · Data collection · Final report · Sep 9, 2016 · N909G · Substantial damage
  > The pilot's inappropriate decision to continue the flight into higher elevation under high-density altitude conditions, which degraded the glider's climb performance and resulted in impact with trees short of the intended runway.
- [NTSB CEN16FA344](https://openairdocs.org/ntsb/CEN16FA344.md): Aves Douglas James RV 6 · Viborg, SD · Accident · 2 fatal · Field investigation · Final report · Sep 2, 2016 · N676DT · Destroyed
  > The pilot's failure to maintain airplane control, which resulted in the airplane exceeding its critical angle of attack, an aerodynamic stall, and subsequent flat spin into terrain.
- [NTSB ERA16LA301](https://openairdocs.org/ntsb/ERA16LA301.md): Means Rober C Rotorway Exec · Iron Station, NC · Accident · Minor injuries · Limited investigation · Final report · Aug 26, 2016 · N48KM · Substantial damage
  > The pilot’s failure to maintain adequate clearance from the ground while hovering, which resulted in separation of the forward section of the right skid tube with counterweight attached, a sudden center of gravity (CG) shift outside the normal operating…
- [NTSB CEN16FA331](https://openairdocs.org/ntsb/CEN16FA331.md): Stemme S10 VT · Telluride, CO · Accident · 2 fatal · Field investigation · Final report · Aug 24, 2016 · N5021 · Substantial damage
  > The pilot's encounter with a downdraft that exceeded the climb performance of the powered glider and resulted in his inability to maintain clearance from the trees. Contributing to the accident was the pilot's decision to fly near building clouds and rain…
- [NTSB WPR16FA160](https://openairdocs.org/ntsb/WPR16FA160.md): AMS Flight Carat A · Minden, NV · Accident · 1 fatal · Field investigation · Final report · Aug 7, 2016 · N11DY · Substantial damage
  > Impact with terrain for reasons that could not be determined based on the available information.
- [NTSB CEN16FA307](https://openairdocs.org/ntsb/CEN16FA307.md): Wilson BUGATTI-DEMONGE 100P · Burns Flat, OK · Accident · 1 fatal · Field investigation · Final report · Aug 6, 2016 · N110PX · Destroyed
  > The pilot's failure to maintain airspeed following an engine anomaly during the initial climb after takeoff, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was an…
- [NTSB CEN16LA302](https://openairdocs.org/ntsb/CEN16LA302.md): Sonex Waiex · Fond du Lac, WI · Accident · Serious injuries · Limited investigation · Final report · Aug 3, 2016 · N12YX · Substantial damage
  > A partial loss of engine for reasons that could not be determined during an examination of the engine.
- [NTSB WPR16LA149](https://openairdocs.org/ntsb/WPR16LA149.md): Swartz Gene Titan T 51 Mustang · Lancaster, CA · Accident · No injuries · Limited investigation · Final report · Jul 23, 2016 · N5103 · Substantial damage
  > A total loss of engine power due to the separation of a flywheel magnet, which impacted the attachment bracket for the primary and secondary ignition and disrupted the timing of the ignition system, rendering it inoperative.
- [NTSB GAA16CA391](https://openairdocs.org/ntsb/GAA16CA391.md): Diamond Aircraft Ind HK 36 · Blanchester, OH · Accident · No injuries · Data collection · Final report · Jul 20, 2016 · N526TC · Substantial damage
  > The pilot's failure to maintain directional control of the powered glider during the landing roll.
- [NTSB ANC16LA047](https://openairdocs.org/ntsb/ANC16LA047.md): Aeropro CZ A220 · McCarthy, AK · Accident · No injuries · Limited investigation · Final report · Jul 19, 2016 · N151J · Substantial damage
  > The pilot’s failure to maintain directional control during the takeoff roll, which resulted in a loss of control and impact with terrain. Contributing to the accident were engine power surges due to the bent carburetor throttle valve lever.
- [NTSB WPR16LA134](https://openairdocs.org/ntsb/WPR16LA134.md): Bell OH 58A · Brawley, CA · Accident · No injuries · Limited investigation · Final report · Jul 2, 2016 · N6251G · Substantial damage
  > The engine's degraded performance due to excessive wear of the engine bleed valve, which prevented it from closing during the accident flight. Contributing to the accident was the operator's failure to overhaul the bleed valve within the…
- [NTSB WPR16LA129](https://openairdocs.org/ntsb/WPR16LA129.md): Burkes BR-1 · Brigham City, UT · Accident · No injuries · Class 3 · Limited · Final report · Jun 22, 2016 · N677DB · Substantial damage
  > A loss of engine power as a result of a failure of the primary and backup ignition system.
- [NTSB GAA16CA326](https://openairdocs.org/ntsb/GAA16CA326.md): Schweizer G 164 · Cummings, ND · Accident · No injuries · Data collection · Final report · Jun 17, 2016 · N36333 · Substantial damage
  > The pilot's failure to maintain an adequate rate of descent while landing, which resulted in a hard landing, short of the runway.
- [NTSB GAA16CA299](https://openairdocs.org/ntsb/GAA16CA299.md): Bareiss David A Tango 2 · Sunrise Beach Village, TX · Accident · Minor injuries · Data collection · Final report · Jun 10, 2016 · N324TT · Substantial damage
  > The nosewheel fairing becoming packed with debris during landing on the soft field due to a gap between the nosewheel tire and the fairing, which resulted in a loss of control and subsequent nose-over.
- [NTSB WPR16LA110](https://openairdocs.org/ntsb/WPR16LA110.md): Seguin Quickie · Mojave, CA · Accident · Minor injuries · Limited investigation · Final report · May 13, 2016 · N68TQ · Destroyed
  > A loss of engine power for reasons that could not be determined based on the available information.
- [NTSB WPR16LA096](https://openairdocs.org/ntsb/WPR16LA096.md): DG Flugzeugbau DG 800B · Clements, CA · Accident · No injuries · Limited investigation · Final report · Apr 25, 2016 · N800YG · Substantial damage
  > The motorglider pilot's decision to perform an in-flight engine start with insufficient altitude, which resulted in an off-airport landing and collision with trees after the engine did not start. Contributing to the accident was the pilot's distraction by the…
- [NTSB GAA16CA201](https://openairdocs.org/ntsb/GAA16CA201.md): Helicycle/Morrisey RR RM-1 · Denver, CO · Accident · Minor injuries · Data collection · Final report · Apr 22, 2016 · N867TV · Substantial damage
  > The pilot's failure to maintain control of the helicopter yaw while operating in conditions conducive to loss of tail rotor effectiveness, resulting in an uncommanded rapid right yaw and ground impact.
- [NTSB ERA16LA151](https://openairdocs.org/ntsb/ERA16LA151.md): Granger Michael D Sonex · Jesup, GA · Accident · Serious injuries · Limited investigation · Final report · Apr 8, 2016 · N97GR · Substantial damage
  > The pilot's improper fuel management, which resulted in fuel exhaustion and a total loss of engine power.
- [NTSB WPR16LA088](https://openairdocs.org/ntsb/WPR16LA088.md): Thomas D. Parkes Lancair ES · Prescott, AZ · Accident · No injuries · Limited investigation · Final report · Mar 10, 2016 · N44AZ · Substantial damage
  > A partial loss of engine power due to an over-temperature event, which thermally damaged the blade tips of the turbocharger wheel and resulted in a slowing or stoppage in the rotation of the turbocharger.
- [NTSB GAA16LA135](https://openairdocs.org/ntsb/GAA16LA135.md): Pinkston Randy T RV-7 · Tavernier, FL · Accident · No injuries · Limited investigation · Final report · Feb 18, 2016 · N705RP · Substantial damage
  > The pilot's misidentification of a parallel roadway for the runway and the airplane's subsequent collision with numerous objects during landing.
- [NTSB ERA16FA097](https://openairdocs.org/ntsb/ERA16FA097.md): Brook Aaron D Lancair IV P · Albany, GA · Accident · 3 fatal · Field investigation · Final report · Jan 30, 2016 · N401PT · Destroyed
  > The pilots' failure to maintain control during a takeoff attempt in a high-performance airplane. Contributing to the accident were the pilots' decision to operate the airplane above its maximum gross weight and with an aft center of gravity and their lack of…
- [NTSB ERA16CA102](https://openairdocs.org/ntsb/ERA16CA102.md): Tucker Mitchel C H 13 · Zephyrhills, FL · Accident · No injuries · Data collection · Final report · Jan 17, 2016 · N9669 · Substantial damage
  > The pilot's failure to maintain aircraft control while on ground standing with the engine running during high crosswind conditions which resulted in a static rollover and collision with the ground.
- [NTSB WPR16LA050](https://openairdocs.org/ntsb/WPR16LA050.md): Moore Onex · Fresno, CA · Accident · 1 fatal · Limited investigation · Final report · Jan 10, 2016 · N1950J · Substantial damage
  > The pilot/builder's failure to properly align the Force One Main Bearing, which resulted in a blockage of the oil transfer hole and culminated with a total engine power loss. Contributing to the accident was the pilot's failure to arrest the bank and sink…

## 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") = 2016
  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=2016

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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.