# NTSB investigations: Amateur-built UNKNOWN ENG, MI

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 1 of 2 · 74 cases

## Latest cases

- [NTSB CEN26LA293](https://openairdocs.org/ntsb/CEN26LA293.md): Gildea William D Jabiru Calypso · Lake Isabella, MI · Accident · No injuries · Class 3 · Limited · Investigation open · Aug 14, 2026 · N495JG
- [NTSB CEN25LA390](https://openairdocs.org/ntsb/CEN25LA390.md): Cameron Balloons US Z-90 · Cedar Springs, MI · Accident · Serious injuries · Class 4 · Limited · Final report · Sep 9, 2025 · N418RX · No damage
  > The passenger’s loss of balance during landing that resulted in a serious injury.
- [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 CEN23FA410](https://openairdocs.org/ntsb/CEN23FA410.md): Sonex Sonex · Dowagiac, MI · Accident · 1 fatal · Class 3 · Field · Final report · Sep 10, 2023 · N569SX · Substantial damage
  > The total loss of engine power due to the failure of the ignition distributor rotor.
- [NTSB CEN23FA361](https://openairdocs.org/ntsb/CEN23FA361.md): Mikoyan Gurevich MIG-23UB · Belleville, MI · Accident · Serious injuries · Class 3 · Field · Final report · Aug 13, 2023 · N23UB · Destroyed
  > A reported partial loss of engine power while maneuvering for reasons that could not be determined.
- [NTSB CEN22LA336](https://openairdocs.org/ntsb/CEN22LA336.md): Beech A36 · Ray, MI · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 24, 2022 · N60ED · Substantial damage
  > The pilot’s early rotation on takeoff, which resulted in insufficient airspeed and an inability to gain sufficient altitude to clear the trees.
- [NTSB CEN22LA089](https://openairdocs.org/ntsb/CEN22LA089.md): Lancair IV · Iron Mountain, MI · Accident · Minor injuries · Class 3 · Limited · Final report · Dec 25, 2021 · N994PT · Substantial damage
  > The total loss of engine power after takeoff for undetermined reasons.
- [NTSB CEN22FA029](https://openairdocs.org/ntsb/CEN22FA029.md): Vans RV · Harrison, MI · Accident · 1 fatal · Class 3 · Field · Final report · Nov 5, 2021 · N16TG · Destroyed
  > The pilot’s failure to maintain adequate airspeed and exceedance of the airplane’s critical angle of attack during landing approach, which resulted in an aerodynamic stall.
- [NTSB CEN20CA337](https://openairdocs.org/ntsb/CEN20CA337.md): Evektor Aerotechnik L13 · Frankenmuth, MI · Accident · Serious injuries · Class 4 · Data collection · Final report · Aug 16, 2020 · N334BA · Substantial damage
  > The pilot's failure to stow the speed brake prior to attempting takeoff.
- [NTSB GAA18CA466](https://openairdocs.org/ntsb/GAA18CA466.md): Vans RV9 · Holland, MI · Accident · No injuries · Data collection · Final report · Jul 28, 2018 · N899RV · Substantial damage
  > The pilot’s failure to maintain yaw control during a go-around.
- [NTSB ANC18LA057](https://openairdocs.org/ntsb/ANC18LA057.md): Aeros Venture 2000 · Bad Axe, MI · Accident · 1 fatal · Limited investigation · Final report · Jul 23, 2018 · N43865 · Substantial damage
  > The pilot's loss of aircraft control for reasons that could not be determined based on the available information.
- [NTSB CEN15LA235](https://openairdocs.org/ntsb/CEN15LA235.md): Lathrop Steven A B8M · Ravenna, MI · Accident · Serious injuries · Limited investigation · Final report · May 1, 2015 · N5606X · Destroyed
  > A total loss of engine power due to carburetor icing.
- [NTSB CEN14LA202](https://openairdocs.org/ntsb/CEN14LA202.md): Nanchang CJ6 - A · Flushing, MI · Accident · 2 fatal · Limited investigation · Final report · Apr 19, 2014 · N594T · Substantial damage
  > The pilot’s failure to maintain adequate airspeed during an off-airport forced landing after a loss of engine power due to carburetor icing and his exceedance of the airplane’s critical angle-of-attack, which resulted in an aerodynamic stall. Contributing to…
- [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 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 CEN12LA014](https://openairdocs.org/ntsb/CEN12LA014.md): Peck Zodiac 601XL · Traverse City, MI · Accident · Serious injuries · Limited investigation · Final report · Oct 11, 2011 · N4595P · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN11FA431](https://openairdocs.org/ntsb/CEN11FA431.md): Bosonetto Thorp T-18 · Howell, MI · Accident · 2 fatal · Field investigation · Final report · Jun 29, 2011 · N8AL · Substantial damage
  > The pilot's failure to maintain airplane control and airspeed during final approach, which resulted in an aerodynamic stall/spin at a low altitude.
- [NTSB CEN11CA047](https://openairdocs.org/ntsb/CEN11CA047.md): Aardema Robert John 1 Aardema RAG WNG SP · Oshtemo, MI · Accident · No injuries · Data collection · Final report · Oct 29, 2010 · N768BA · Substantial damage
  > The failure of the ignition system wiring, which resulted in a total loss of engine power.
- [NTSB CEN10CA469](https://openairdocs.org/ntsb/CEN10CA469.md): Hughes 269B · Lakeview, MI · Accident · Serious injuries · Data collection · Final report · Aug 7, 2010 · N11XC · Substantial damage
  > The pilot's excessive descent angle during landing approach, which resulted in a settling with power condition.
- [NTSB CEN09CA583](https://openairdocs.org/ntsb/CEN09CA583.md): Sierra E5A Replica · Port Huron, MI · Accident · No injuries · Data collection · Final report · Sep 12, 2009 · N44062 · Substantial damage
  > The pilot's failure to maintain aircraft control during landing.
- [NTSB CHI08FA132](https://openairdocs.org/ntsb/CHI08FA132.md): Fairchild Hiller FH-1100 · Comstock, MI · Accident · 1 fatal · Field investigation · Final report · May 16, 2008 · N5049F · Destroyed
  > A loss of engine power in flight due to fuel exhaustion resulting from the pilot's inadequate fuel management. Contributing to the accident was the unsuitable terrain for a forced landing.
- [NTSB CHI08CA008](https://openairdocs.org/ntsb/CHI08CA008.md): Veltman, Robert CH701 · Owosso, MI · Accident · Serious injuries · Data collection · Final report · Oct 25, 2007 · N702BW · Substantial damage
  > The pilot inadvertantly turned the fuel selector to the off position and failed to maintain aircraft control during the subsequent loss of engine power. A factor associated with the accident was the pilot's change in his normal habit pattern.
- [NTSB CHI07CA124](https://openairdocs.org/ntsb/CHI07CA124.md): Wilkinson Daniel V Rotorway Exec 90 · Kalamazoo, MI · Accident · No injuries · Data collection · Final report · Apr 28, 2007 · N52988 · Destroyed
  > The failure of the sprag clutch which resulted in the disengagement of the drive unit and the pilot's misjudged landing during the autorotation. A factor was the low altitude at which the failure occurred.
- [NTSB CHI07LA070](https://openairdocs.org/ntsb/CHI07LA070.md): Reisinger Sonerai II L · Alma, MI · Accident · Minor injuries · Limited investigation · Final report · Jan 20, 2007 · N59RR · Destroyed
  > The loss of engine power during takeoff-initial climb for an undetermined reason. A factor in the accident was the lack of suitable terrain for a forced landing.
- [NTSB CHI06LA260](https://openairdocs.org/ntsb/CHI06LA260.md): Endless Skies L164 · Durand, MI · Accident · No injuries · Limited investigation · Final report · Sep 11, 2006 · N2627J · Substantial damage
  > The kit builder's improper installation of the aileron bracket leading to the aileron flutter during cruise that resulted in the wing spars' failure.
- [NTSB CHI06CA217](https://openairdocs.org/ntsb/CHI06CA217.md): Veltman CH701 · Owosso, MI · Accident · No injuries · Data collection · Final report · Aug 6, 2006 · N702BW · Substantial damage
  > The pilot's inadequate preflight planning and inadequate compensation for the tailwind condition. Factors included the tailwind and the power lines.
- [NTSB CHI06CA116](https://openairdocs.org/ntsb/CHI06CA116.md): Palulis John Exec 162F · Kalkaska, MI · Accident · No injuries · Data collection · Final report · Apr 16, 2006 · N42996 · Substantial damage
  > The compensation for wind conditions not performed by the pilot during hover. An additional cause was the tailwind.
- [NTSB CHI05CA263](https://openairdocs.org/ntsb/CHI05CA263.md): Keith Avid Amphibian · Buchanan, MI · Accident · Minor injuries · Data collection · Final report · Sep 10, 2005 · N54BX · Substantial damage
  > The loss of engine power for undetermined reasons and the unsuitable terrain for landing encountered by the pilot. A factor was the power lines.
- [NTSB CHI05LA158](https://openairdocs.org/ntsb/CHI05LA158.md): Piper PA-28-180 · Allegan, MI · Accident · No injuries · Limited investigation · Final report · Jun 25, 2005 · N8321W · 2 aircraft · Minor damage
  > The inadequate aircraft control by the PA-28-180 pilot while the airplane was stopped.
- [NTSB CHI04CA142](https://openairdocs.org/ntsb/CHI04CA142.md): Kauffman Bede IV · Acme, MI · Accident · No injuries · Data collection · Final report · May 26, 2004 · N115PK · Substantial damage
  > Engine oil starvation and inadequate maintenance by the pilot.
- [NTSB CHI03LA287](https://openairdocs.org/ntsb/CHI03LA287.md): Staudacher S-1000 · Newberry, MI · Accident · No injuries · Limited investigation · Final report · Aug 22, 2003 · N6195V · Substantial damage
  > The pilot's inadequate compensation for the wind conditions, resulting in aircraft control not being maintained during the landing approach. Contributing factors to the accident were the gusting crosswind and the VASI system.
- [NTSB CHI03LA006](https://openairdocs.org/ntsb/CHI03LA006.md): Wolf Rotorway Exec-162F · Gregory, MI · Accident · No injuries · Limited investigation · Final report · Oct 7, 2002 · N1955Z · Substantial damage
  > Failure of the secondary drive shaft, which resulted in a complete loss of power to the main rotor, and a high forward airspeed on touchdown, causing the helicopter to flip forward.
- [NTSB CHI02LA277](https://openairdocs.org/ntsb/CHI02LA277.md): Grumman-Schweizer G-164B · Martin, MI · Accident · No injuries · Limited investigation · Final report · Sep 6, 2002 · N48417 · Substantial damage
  > The pilot's inadequate aircraft preflight and his inability to abort the takeoff due to the obscured windshield. Contributing to the accident was the bent hopper latch and the pilot's failure to maintain directional control.
- [NTSB CHI01LA332](https://openairdocs.org/ntsb/CHI01LA332.md): AviaStrottel AC 4C · Marshfield, MI · Accident · Serious injuries · Limited investigation · Final report · Sep 29, 2001 · N68PR · Minor damage
  > The pilot's decision to release from the tow plane during the takeoff. A factor associated with the accident was the pilot's vision was restricted by his hat during the takeoff.
- [NTSB CHI01LA155](https://openairdocs.org/ntsb/CHI01LA155.md): Torno Micro Mong · Petersburg, MI · Accident · Serious injuries · Limited investigation · Final report · Jun 8, 2001 · N426RT · Substantial damage
  > Aircraft control not being maintained by the pilot during the forced landing. Factors to the accident were the loss of engine power, the overtemperature of the piston, the hole in the top of the number-one piston, and the encountered stall.
- [NTSB CHI00FAMS2](https://openairdocs.org/ntsb/CHI00FAMS2.md): Peters RAF 2000 · Manistique, MI · Accident · 1 fatal · Missing aircraft · Final report · Jul 29, 2000 · N11ZK · Destroyed
  > undetermined.
- [NTSB CHI00LA225](https://openairdocs.org/ntsb/CHI00LA225.md): Comeau Avid Flyer · Gladstone, MI · Accident · Minor injuries · Limited investigation · Final report · Jul 26, 2000 · N646R · Destroyed
  > aircraft control not maintained by the pilot.
- [NTSB CHI00LA215](https://openairdocs.org/ntsb/CHI00LA215.md): Lutke Rotoway Exec 90 · Kalamazoo, MI · Accident · No injuries · Limited investigation · Final report · Jul 22, 2000 · N1183M · Substantial damage
  > the loss of main rotor rpm due to the failure of the top engine mount and the subsequent loss of the main rotor drive belt tension. A factor was the confined area landing zone.
- [NTSB CHI98FAMS1](https://openairdocs.org/ntsb/CHI98FAMS1.md): Aero Vodochody Aero. Works L-39C · Traverse City, MI · Accident · 2 fatal · Missing aircraft · Final report · Jul 3, 1998 · N7868M · Destroyed
  > Undetermined.
- [NTSB CHI97LA190](https://openairdocs.org/ntsb/CHI97LA190.md): Dietrich Nieuport 12 · Byron, MI · Accident · Serious injuries · Limited investigation · Final report · Jun 29, 1997 · N169RD · Destroyed
  > The owner/pilot mechanic's inadequate inspection of the aircraft which led to contamination (other than water) of the fuel filter.
- [NTSB CHI95LA271](https://openairdocs.org/ntsb/CHI95LA271.md): Boeing 757 · Detroit, MI · Accident · Serious injuries · Limited investigation · Final report · Aug 5, 1995 · N509US · No damage
  > the flight's encounter with turbulence.
- [NTSB CHI95LA257](https://openairdocs.org/ntsb/CHI95LA257.md): Nanchang 18A · Superior Twnshp, MI · Accident · No injuries · Limited investigation · Final report · Aug 2, 1995 · N46YK · Substantial damage
  > the pilot's operation of the airplane with a known deficiency in the fuel selector, and his improper positioning of the fuel selector. A factor relating to the accident was: the fuel selector's restriction of movement.
- [NTSB CHI94LA279](https://openairdocs.org/ntsb/CHI94LA279.md): Hughes TH-55A · Houghton, MI · Accident · No injuries · Limited investigation · Final report · Aug 14, 1994 · N20SD · Substantial damage
  > failure of the pilot to maintain control of the aircraft.
- [NTSB CHI94LA198](https://openairdocs.org/ntsb/CHI94LA198.md): Beech 18 · Belleville, MI · Accident · No injuries · Limited investigation · Final report · Jun 13, 1994 · N231LJ · Substantial damage
  > the failure of the fuel line on the unique STC'd engine installation. A related factor is the improper installation of a fuel line by company maintenance personnel.
- [NTSB CHI93DEC01](https://openairdocs.org/ntsb/CHI93DEC01.md): Bradford Pietenpol Skyscout · Eaton Rapids, MI · Accident · Minor injuries · Final report · Aug 21, 1993 · N4301D · Substantial damage
  > the pilot's failure to maintain airspeed which resulted in an inadvertant stall. Factors related to the accident were the low altitude and the restricted movement of the carburetor needle.
- [NTSB CHI92DEM05](https://openairdocs.org/ntsb/CHI92DEM05.md): Taylorcraft H-2 · Holland, MI · Accident · Serious injuries · Final report · Aug 22, 1992 · N15672 · Substantial damage
  > Not maintaining a sufficient airspeed during the reversal turn and encountering a stall/spin maneuver.
- [NTSB CHI91LA214](https://openairdocs.org/ntsb/CHI91LA214.md): Ercoupe 415-C · Sparta, MI · Accident · No injuries · Limited investigation · Final report · Jul 5, 1991 · N87169 · Substantial damage
  > Inadequate preflight by the pilot and the pilot's failure to reach a proper touchdown point.
- [NTSB CHI89LA025](https://openairdocs.org/ntsb/CHI89LA025.md): Cessna 172P · Samaria, MI · Accident · No injuries · Limited investigation · Final report · Nov 15, 1988 · N86ER · Substantial damage
- [NTSB CHI88DEM10](https://openairdocs.org/ntsb/CHI88DEM10.md): Grumman G-164B · Schoolcraft, MI · Accident · No injuries · Final report · Aug 18, 1988 · N48417 · Substantial damage
  > The pilot failed to maintain directional control while maneuvering the aircraft to avoid an obstacle during the landing roll. The aircraft's right wing impacted a corn crop and the aircraft swerved/ground looped to the right and skidded to a stop, nose down.…
- [NTSB CHI88LA168](https://openairdocs.org/ntsb/CHI88LA168.md): Enstrom 280FX · Menominee, MI · Accident · No injuries · Limited investigation · Final report · Jul 16, 1988 · N280FX · Substantial damage
  > During a demonstration of an autorotation to a run-on landing, the helicopter skids dragged in the soft grass upon touchdown, and the helicopter veered to the left. The pilot failed to maintain aircraft control when the helicopter veered left, the right skid…

Next page: https://openairdocs.org/ntsb.md?engine=99999&state=MI&page=2

## 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."eventStateOrRegion" = 'MI' AND c."eventCountry" = 'USA'
  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&state=MI

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