# 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 2 of 41 · 2,047 cases

## Cases, newest first

- [NTSB CEN25LA123](https://openairdocs.org/ntsb/CEN25LA123.md): Caldwell C W 162F · Mounds, OK · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 13, 2025 · N124CW · Destroyed
  > The student pilot’s failure to maintain control of the helicopter during a precautionary landing, which resulted in a dynamic roll over and postimpact fire.
- [NTSB ERA25LA131](https://openairdocs.org/ntsb/ERA25LA131.md): Mallory Horton AQUA-BEE · Miami, FL · Accident · No injuries · Class 4 · Limited · Final report · Feb 25, 2025 · N799RX · Substantial damage
  > The pilot’s failure to lower the landing gear before touchdown.
- [NTSB WPR25LA101](https://openairdocs.org/ntsb/WPR25LA101.md): Hughes OH-6A · Santa Teresa, NM · Accident · No injuries · Class 3 · Limited · Final report · Feb 22, 2025 · N4191T · Substantial damage
  > The flight instructor's failure to maintain helicopter control during a practice autorotation, which resulted in a hard landing and structural damage to the tail boom and subsequent failure of the tail rotor drive system.
- [NTSB WPR25LA103](https://openairdocs.org/ntsb/WPR25LA103.md): Amazon.Com Services MK30 · Pendleton, OR · Accident · No injuries · Class 4 · Limited · Final report · Feb 21, 2025 · N265PA · Substantial damage
  > The unmanned aircraft system’s failure to maintain clearance from an obstacle, which resulted in a loss of control and impact with terrain.
- [NTSB ERA25LA107](https://openairdocs.org/ntsb/ERA25LA107.md): Aviat Pitts S-2B · Fellsmere, FL · Accident · Class 3 · Limited · Preliminary report · Jan 30, 2025 · N8ZT
  > On January 30, 2025, at 1034 eastern standard time, an Aviat Inc Pitts S-2B, N8ZT, was substantially damaged when it was involved in an accident near Fellsmere, Florida. The private pilot was seriously injured. The airplane was operated as a Title 14 Code of…
- [NTSB WPR25LA083](https://openairdocs.org/ntsb/WPR25LA083.md): Charles E Spencer CCK-1865 · Vacaville, CA · Accident · No injuries · Class 4 · Limited · Final report · Jan 24, 2025 · N730CS · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll.
- [NTSB CEN25LA078](https://openairdocs.org/ntsb/CEN25LA078.md): Zenith Stol CH750 · Byron, IL · Accident · No injuries · Class 4 · Limited · Final report · Jan 15, 2025 · N749WJ · Substantial damage
  > The pilot inadvertently moved the ignition key to the off position and broke the key, which resulted in a loss of engine power and subsequent forced landing.
- [NTSB WPR25LA064](https://openairdocs.org/ntsb/WPR25LA064.md): Amazon.Com Services MK30 · Pendleton, OR · Accident · No injuries · Class 4 · Limited · Final report · Dec 16, 2024 · N223PA · Substantial damage
  > The incorrect altitude indication by test software during landing.
- [NTSB WPR25LA063](https://openairdocs.org/ntsb/WPR25LA063.md): Amazon.Com Services MK30 · Pendleton, OR · Accident · No injuries · Class 4 · Limited · Final report · Dec 16, 2024 · N209PA · Substantial damage
  > An improper altitude indication from a recent software update, which resulted in a loss of engine power in flight.
- [NTSB ERA25FA065](https://openairdocs.org/ntsb/ERA25FA065.md): Truitt James B Vans RV-8A · Fort Blackmore, VA · Accident · 1 fatal · Class 3 · Field · Preliminary report · Dec 4, 2024 · N627TT · Substantial damage
  > On December 4, 2024, about 1451 eastern standard time, an experimental amateur-built Vans RV-8A, N627TT, was substantially damaged when it was involved in an accident near Fort Blackmore, Virginia. The commercial pilot was fatally injured. The airplane was…
- [NTSB ERA25LA064](https://openairdocs.org/ntsb/ERA25LA064.md): AMS Flight D O O Carat A · Centralhatchee, GA · Accident · Serious injuries · Class 3 · Limited · Final report · Nov 20, 2024 · N17GF · Substantial damage
  > Maintenance personnel’s failure to comply with the engine manufacturer’s guidance, which resulted in improper valvetrain clearances, unseating of the intake valve keepers, and a total loss of engine power.
- [NTSB WPR25FA020](https://openairdocs.org/ntsb/WPR25FA020.md): Extra Flugzeugbau EA 300/L · Las Cruces, NM · Accident · 1 fatal · Class 3 · Field · Final report · Oct 20, 2024 · N512DW · Destroyed
  > The pilot’s entry into an aerobatic maneuver at an altitude that was insufficient to complete a successful recovery, which resulted in an accelerated stall and impact with terrain.
- [NTSB CEN25LA013](https://openairdocs.org/ntsb/CEN25LA013.md): Rotorway Exec · Plymouth, IN · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 11, 2024 · N314AC · Substantial damage
  > A loss of control due to the failed forward tail rotor belt as a result of the owner’s failure to follow the helicopter manufacturer’s tail rotor belt replacement recommendations.
- [NTSB CEN25LA010](https://openairdocs.org/ntsb/CEN25LA010.md): Zodiac 601 · Augusta, KS · Accident · No injuries · Class 4 · Limited · Final report · Oct 9, 2024 · N601KM · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll.
- [NTSB WPR24FA309](https://openairdocs.org/ntsb/WPR24FA309.md): Nanchang China CJ-6A · Lancaster, CA · Accident · 1 fatal · Class 3 · Field · Final report · Sep 22, 2024 · N313YK · 2 aircraft · Substantial damage
  > The CJ-6A pilot’s failure to maintain separation and the Yak pilot’s failure to monitor the other airplane during a detachment, which resulted in a midair collision.
- [NTSB WPR24LA317](https://openairdocs.org/ntsb/WPR24LA317.md): Yakovlev YAK-50 · Watsonville, CA · Accident · No injuries · Class 4 · Limited · Final report · Sep 20, 2024 · N613BM · 2 aircraft · Substantial damage
  > The Yak-50 pilot’s failure to maintain clearance from another airplane while taxiing and maneuvering. Contributing to the accident was the pilot’s inattention due to a distraction inside the cockpit.
- [NTSB CEN24LA348](https://openairdocs.org/ntsb/CEN24LA348.md): Beech A36 · Amarillo, TX · Accident · No injuries · Class 4 · Limited · Final report · Sep 10, 2024 · N6931T · Substantial damage
  > The pilot’s failure to extend the airplane’s landing gear before landing.
- [NTSB WPR24LA302](https://openairdocs.org/ntsb/WPR24LA302.md): Amazon.Com Services MK30 · Pendleton, OR · Accident · No injuries · Class 4 · Limited · Final report · Sep 6, 2024 · N213PA · 2 aircraft · Destroyed
  > The operator’s failure to maintain separation between two drones during dual simulated engine out recoveries, which resulted in a midair collision.
- [NTSB ERA24FA362](https://openairdocs.org/ntsb/ERA24FA362.md): Schleicher Alexander ASH 26 E · Waynesville, OH · Accident · 1 fatal · Class 3 · Field · Final report · Aug 30, 2024 · N264JM · Substantial damage
  > A loss of control on takeoff for undetermined reasons.
- [NTSB CEN24LA330](https://openairdocs.org/ntsb/CEN24LA330.md): Esqual VM1 · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Aug 27, 2024 · N151GH · Substantial damage
  > The pilot’s premature rotation during takeoff which resulted in the airplane settling back to the runway and the subsequent separation of the left wheel.
- [NTSB ERA24LA284](https://openairdocs.org/ntsb/ERA24LA284.md): Corella Neil RV9A · Saluda, SC · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 30, 2024 · N94NF · Substantial damage
  > The pilot’s failure to maintain an appropriate glide path during the landing approach in variable wind conditions, which resulted in collision with trees.
- [NTSB ERA24LA298](https://openairdocs.org/ntsb/ERA24LA298.md): Globe GC1B · Peachtree City, GA · Accident · No injuries · Class 4 · Limited · Final report · Jun 25, 2024 · N3301K · Substantial damage
  > A right main landing gear collapse during landing.
- [NTSB ERA24LA258](https://openairdocs.org/ntsb/ERA24LA258.md): Clapp Saberwing · Valdosta, GA · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 11, 2024 · N120SW · Substantial damage
  > The total loss of engine power due to the shearing of the woodruff key that indexed the crankshaft gear and hub assembly to the crankshaft, which resulted in the gear and hub rotating from their indexed position and caused the crankshaft-to-camshaft timing to…
- [NTSB CEN24LA214](https://openairdocs.org/ntsb/CEN24LA214.md): Stinson Vultee V-77 · Slaton, TX · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 9, 2024 · N88026 · Substantial damage
  > The pilot’s failure to maintain directional control after landing in gusting wind conditions which resulted in a runway excursion and the airplane nosing over. Contributing was the pilot’s decision to conduct the flight in very strong, gusting wind conditions.
- [NTSB WPR24LA188](https://openairdocs.org/ntsb/WPR24LA188.md): David Fisher Murphy Moose · Ocean Shores, WA · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 8, 2024 · N9695W · Substantial damage
  > The pilot’s hard, bounced landing, subsequent failure to maintain adequate airspeed, and his exceedance of the airplane’s critical angle of attack during a go-around, which resulted in an aerodynamic stall and impact with terrain.
- [NTSB WPR24FA185](https://openairdocs.org/ntsb/WPR24FA185.md): Rans S-12XL Airaile · Picacho Peak, AZ · Accident · 1 fatal · Class 3 · Field · Final report · Jun 8, 2024 · N518D · Substantial damage
  > The pilot’s decision to conduct a low-altitude flight in mountainous terrain and his subsequent loss of airplane control after encountering mechanical turbulence, which resulted in an impact with the terrain.
- [NTSB WPR24LA162](https://openairdocs.org/ntsb/WPR24LA162.md): Nelson Lawrence K 601 HDS · Somerton, AZ · Accident · No injuries · Class 4 · Limited · Final report · May 27, 2024 · N918LN · Substantial damage
  > The pilot’s inadequate fuel management which resulted in a total loss of engine power due to fuel starvation.
- [NTSB CEN24LA198](https://openairdocs.org/ntsb/CEN24LA198.md): Brant T Phillips Super Cub EXP · Franktown, CO · Accident · No injuries · Class 4 · Limited · Final report · May 26, 2024 · N983SB · Substantial damage
  > The pilot’s failure to maintain aircraft control during final approach and attempted go-around after encountering a sudden windshear.
- [NTSB WPR24LA159](https://openairdocs.org/ntsb/WPR24LA159.md): Nanchang China CJ-6A · Peoria, AZ · Accident · No injuries · Class 3 · Limited · Final report · May 21, 2024 · N4182C · Substantial damage
  > The partial loss of engine power during cruise flight due to the improper installation of the master connecting rod main bushing set screws, which backed off and allowed the main bushing to shift, resulting in scoring damage on the crankshaft that led to the…
- [NTSB CEN24LA185](https://openairdocs.org/ntsb/CEN24LA185.md): Titan T51 · Novi, MI · Accident · Serious injuries · Class 3 · Limited · Final report · May 12, 2024 · N260Y · Substantial damage
  > A failure of the electrical system, resulting in a loss of fuel injection and subsequent loss of engine power.
- [NTSB CEN24FA170](https://openairdocs.org/ntsb/CEN24FA170.md): Zenith CH601 · Bristol, IN · Accident · 2 fatal · Class 3 · Field · Final report · Apr 30, 2024 · N6271F · Substantial damage
  > The pilot’s loss of control during the descent for reasons that could not be determined, which resulted in a steep descent into terrain.
- [NTSB CEN24FA167](https://openairdocs.org/ntsb/CEN24FA167.md): Vertical Aviation Technologies Hummingbird · Spring Branch, TX · Accident · 2 fatal · Class 3 · Field · Final report · Apr 29, 2024 · N829SH · Destroyed
  > A total loss of engine power for undetermined reasons, which resulted in a forced landing and a subsequent impact with terrain.
- [NTSB ERA24LA195](https://openairdocs.org/ntsb/ERA24LA195.md): Reddick Jonathan L Zodiac 601XLB · Dunbar, PA · Accident · No injuries · Class 4 · Limited · Final report · Apr 27, 2024 · N601DR · Destroyed
  > A total loss of engine power as a result of an improperly fabricated fuel-air mixture cable bracket. Contributing was the pilot’s decision to fly the airplane with a known mechanical engine issue, and the presence of another airplane that was back taxiing on…
- [NTSB CEN24FA164](https://openairdocs.org/ntsb/CEN24FA164.md): Lancair Legacy FG · Spicewood, TX · Accident · 1 fatal · Class 3 · Field · Final report · Apr 22, 2024 · N550NL · Destroyed
  > The pilot’s failure to properly configure the airplane during a go-around in gusting wind conditions, and his subsequent exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall at an altitude too low for recovery.
- [NTSB ERA24FA160](https://openairdocs.org/ntsb/ERA24FA160.md): Arthur B Canning Merlin Lite · Mulberry, FL · Accident · 1 fatal · Class 3 · Field · Final report · Apr 2, 2024 · N622PC · Substantial damage
  > The pilot/builder’s modifications of the motorglider’s engine, which resulted in an excessively lean fuel air mixture, preignition, piston failure, and a subsequent total loss of engine power during the initial climb. Contributing to the outcome was the…
- [NTSB ERA24LA170](https://openairdocs.org/ntsb/ERA24LA170.md): Beta Biz LX7 · Huntsville, AL · Accident · No injuries · Class 4 · Limited · Final report · Mar 30, 2024 · N222MA · Substantial damage
  > The failure of the nose landing gear actuator forward hydraulic fitting, which resulted in a main landing gear collapse during landing due to the loss of hydraulic fluid and pressure.
- [NTSB WPR24LA113](https://openairdocs.org/ntsb/WPR24LA113.md): Kitfox S7 Super Sport · Asotin, WA · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 16, 2024 · N295P · Substantial damage
  > Pilot’s failure to maintain clearance from powerlines during low altitude flying.
- [NTSB ERA24LA144](https://openairdocs.org/ntsb/ERA24LA144.md): Glasair Sportsman 2+2 · Fort Meade, FL · Accident · No injuries · Class 3 · Limited · Final report · Mar 14, 2024 · N76TG · Destroyed
  > The pilot’s inadequate inspection of the airplane following an inflight smoke event, which result in separation of the exhaust pipe and hot exhaust igniting the engine cowling, and a subsequent loss of engine power.
- [NTSB CEN24LA119](https://openairdocs.org/ntsb/CEN24LA119.md): Zenith Stol CH750 · Sextonville, WI · Accident · Serious injuries · Class 3 · Limited · Final report · Feb 23, 2024 · N750WW · Substantial damage
  > A loss of engine power for reasons that could not be determined, followed by a loss of control and subsequent impact with terrain.
- [NTSB CEN24LA110](https://openairdocs.org/ntsb/CEN24LA110.md): Pipistrel Taurus · Waller, TX · Accident · No injuries · Class 4 · Limited · Final report · Feb 1, 2024 · N984TP · 2 aircraft · Substantial damage
  > The failure of both pilots to see and avoid one another while maneuvering, which resulted in a mid-air collision.
- [NTSB ERA24LA099](https://openairdocs.org/ntsb/ERA24LA099.md): Swissdrones Operating SDO 50 V2 · Antioch, GA · Accident · No injuries · Class 3 · Limited · Final report · Jan 18, 2024 · N780PA · Substantial damage
  > A partial loss of engine power due to a reduction of fuel flow for undetermined reasons. Contributing to the accident was the UAS manufacturer’s lack of instructions for a partial loss of engine power landing.
- [NTSB ERA24LA083](https://openairdocs.org/ntsb/ERA24LA083.md): Rabe Richard Exec 162F · Tuscumbia, AL · Accident · No injuries · Class 4 · Limited · Final report · Dec 16, 2023 · N60932 · Substantial damage
  > The pilot’s failure to maintain control of the helicopter, which resulted in the right skid contacting the ground and a subsequent rollover.
- [NTSB WPR24FA053](https://openairdocs.org/ntsb/WPR24FA053.md): Beauchamp Norm Kitfox · Eloy, AZ · Accident · 1 fatal · Class 3 · Field · Final report · Dec 8, 2023 · N66180 · Destroyed
  > The separation of a propeller blade during the initial climb due to insufficient blade retention forces. Contributing to the accident was the propeller blade retention design, manufacturing defects that prevented the propeller from achieving adequate grip…
- [NTSB ERA24LA043](https://openairdocs.org/ntsb/ERA24LA043.md): Lancair IV · Perry, FL · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 17, 2023 · N37MB · Substantial damage
  > A rapid throttle advancement after a period of idling, which resulted in a flooded engine and total loss of engine power.
- [NTSB ERA24LA040](https://openairdocs.org/ntsb/ERA24LA040.md): Bell Andy Skyraider II · Limington, ME · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 16, 2023 · N90AB · Substantial damage
  > The failure of the fuel pump to adequately supply fuel to the engine due to significant corrosion.
- [NTSB CEN24LA037](https://openairdocs.org/ntsb/CEN24LA037.md): Charles L. Hayes Lancair IVP Turbine · McKinney, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 11, 2023 · N751HP · Substantial damage
  > The pilot’s failure to attain the proper touchdown point during landing, which resulted in a runway excursion and collision with terrain and a vehicle.
- [NTSB WPR24LA031](https://openairdocs.org/ntsb/WPR24LA031.md): Amazon.Com Services MK27-2 · Pendleton, OR · Accident · No injuries · Class 4 · Limited · Final report · Nov 10, 2023 · N692PA · Substantial damage
  > The operator’s use of an insufficiently charged battery that resulted in a total loss of engine power and subsequent impact with terrain.
- [NTSB CEN24LA032](https://openairdocs.org/ntsb/CEN24LA032.md): Tom Hodgson 29 · Kokomo, IN · Accident · Minor injuries · Class 4 · Limited · Final report · Nov 5, 2023 · N29XB · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll.
- [NTSB CEN24FA024](https://openairdocs.org/ntsb/CEN24FA024.md): Lancair 320 · Manitowoc, WI · Accident · 1 fatal · Class 3 · Field · Final report · Oct 25, 2023 · N320P · Substantial damage
  > The pilot’s decision to continue the visual flight rules flight into instrument meteorological conditions and failure to maintain clearance from trees and terrain during an unapproved instrument approach. Contributing to the accident was the pilot’s…
- [NTSB WPR24LA015](https://openairdocs.org/ntsb/WPR24LA015.md): Boeing A75N1(PT17) · Mesa, AZ · Accident · No injuries · Class 4 · Limited · Final report · Oct 12, 2023 · N4777V · Substantial damage
  > The flight instructor’s failure to maintain directional control during the landing roll, which resulted in a ground loop.

Next page: https://openairdocs.org/ntsb.md?engine=99999&page=3

## 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=2

---
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.