# NTSB investigations: Amateur-built UNKNOWN ENG, AK

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 · 57 cases

## Latest cases

- [NTSB ANC26LA045](https://openairdocs.org/ntsb/ANC26LA045.md): Cessna 170B · Bethel, AK · Accident · No injuries · Class 4 · Limited · Investigation open · May 28, 2026 · N2526D · Substantial damage
- [NTSB ANC25LA091](https://openairdocs.org/ntsb/ANC25LA091.md): Vu Holdings LLC/DBA Vanilla UN VA 001 · Ninilchik, AK · Accident · No injuries · Class 3 · Limited · Preliminary report · Aug 20, 2025 · N246VU · Substantial damage
  > On August 20, 2025, at about 0632 Alaska daylight time, a Platform Aerospace VA 001 Unmanned Aerial System (UAS), N246VU, was substantially damaged when it was involved in an accident on a beachside cliff near Ninilchik, Alaska. The aircraft was unmanned. The…
- [NTSB ANC23LA078](https://openairdocs.org/ntsb/ANC23LA078.md): Rhodes Steven D SR3500 · Nenana, AK · Accident · No injuries · Class 3 · Limited · Final report · Sep 17, 2023 · N907W · Substantial damage
  > A total loss of engine power due to fuel starvation. Contributing was the owner/builder’s inadequate maintenance.
- [NTSB CEN22LA380](https://openairdocs.org/ntsb/CEN22LA380.md): Cessna 172 · McCarthy, AK · Accident · No injuries · Class 4 · Limited · Final report · Aug 7, 2022 · N171Q · Substantial damage
  > The pilot’s failure to maintain control of the airplane during takeoff in turbulent weather conditions.
- [NTSB ANC22LA059](https://openairdocs.org/ntsb/ANC22LA059.md): Kakeldey Ronald O Smith PA12 EXP · Beluga, AK · Accident · No injuries · Class 4 · Limited · Final report · Jul 1, 2022 · N73AK · Substantial damage
  > The pilot’s loss of control during the landing roll.
- [NTSB ANC21LA058](https://openairdocs.org/ntsb/ANC21LA058.md): Maule M-5-210C · Anchorage, AK · Accident · No injuries · Class 4 · Limited · Final report · Jul 7, 2021 · N349X · Substantial damage
  > The pilot’s impact with a log while dragging an off-airport landing site.
- [NTSB ANC20CA062](https://openairdocs.org/ntsb/ANC20CA062.md): Cub Crafters CCK-1865 · Juneau, AK · Accident · No injuries · Class 4 · Data collection · Final report · Jun 28, 2020 · N153CC · Substantial damage
  > The pilot's failure to maintain directional control during the landing rollout, which resulted in a ground loop.
- [NTSB GAA19CA370](https://openairdocs.org/ntsb/GAA19CA370.md): Kirk Ellis Wendell Ptundradactyl · Friday Creek, AK · Accident · No injuries · Data collection · Final report · Jun 20, 2019 · N357WE · Substantial damage
  > The pilot's excessive brake application during landing on a short runway due to his lack of familiarity with the toe brakes, which resulted in a nose-over.
- [NTSB GAA19CA349](https://openairdocs.org/ntsb/GAA19CA349.md): Piper PA18 · Beluga, AK · Accident · No injuries · Data collection · Final report · Jun 16, 2019 · N91144 · Substantial damage
  > The pilot's selection of unsuitable terrain for landing, which resulted in a noseover.
- [NTSB GAA18CA454](https://openairdocs.org/ntsb/GAA18CA454.md): Cessna 172 · Meadow Lakes, AK · Accident · No injuries · Data collection · Final report · Jul 25, 2018 · N171Q · Substantial damage
  > The pilot’s selection of the wrong fuel tank for departure, which resulted in fuel starvation and the subsequent total loss of engine power.
- [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 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 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 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 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 ANC14CA086](https://openairdocs.org/ntsb/ANC14CA086.md): Miller Gregory S Bushwacker · Iliamna, AK · Accident · No injuries · Data collection · Final report · Sep 22, 2014 · N9013U · Substantial damage
  > The pilot's failure to maintain control on landing, resulting in the collision with terrain.
- [NTSB ANC14CA001](https://openairdocs.org/ntsb/ANC14CA001.md): Piper PA 18-150 · Iliamna, AK · Accident · No injuries · Data collection · Final report · Oct 7, 2013 · N91144 · Substantial damage
  > The pilot's failure to maintain aircraft control during the landing roll with a tailwind.
- [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 ANC12CA070](https://openairdocs.org/ntsb/ANC12CA070.md): Dehavilland DHC-2 · Cantwell, AK · Accident · No injuries · Data collection · Final report · Jul 8, 2012 · N906JS · Substantial damage
  > The right seat passenger’s inadvertent contact with the emergency fuel shutoff valve, which resulted in fuel starvation and a total loss of engine power. Contributing to the accident was the pilot's failure to provide a thorough preflight briefing to the…
- [NTSB ANC12CA032](https://openairdocs.org/ntsb/ANC12CA032.md): Robinson Helicopter R22 Alpha · Palmer, AK · Accident · No injuries · Data collection · Final report · Apr 21, 2012 · N121MR · Substantial damage
  > The pilot's selection of unsuitable terrain for landing, which resulted in a tailrotor strike.
- [NTSB ANC12CA029](https://openairdocs.org/ntsb/ANC12CA029.md): Cessna 180 · Palmer, AK · Accident · No injuries · Data collection · Final report · Mar 30, 2012 · N266V · Substantial damage
  > The pilot’s failure to maintain adequate clearance from terrain during low-level maneuvering.
- [NTSB ANC11LA060](https://openairdocs.org/ntsb/ANC11LA060.md): Sonex / John D. McCarter Waiex · Sterling, AK · Accident · Serious injuries · Limited investigation · Final report · Jul 7, 2011 · N18YX · Substantial damage
  > The pilot's failure to maintain sufficient airspeed to avoid an aerodynamic stall following a loss of engine power for undetermined reasons.
- [NTSB ANC10CA050](https://openairdocs.org/ntsb/ANC10CA050.md): Cessna 180 · Kenai, AK · Accident · No injuries · Data collection · Final report · Jun 6, 2010 · N266V · Substantial damage
  > The pilot's selection of unsuitable terrain for landing, resulting in the airplane nosing over during taxi.
- [NTSB ANC09CA109](https://openairdocs.org/ntsb/ANC09CA109.md): Short Bros. & Harland SC7 Series · Skwentna, AK · Accident · No injuries · Data collection · Final report · Sep 26, 2009 · N754BD · Substantial damage
  > The pilot's failure to maintain directional control while landing on a rough, soft, and narrow airstrip.
- [NTSB ANC09FA052](https://openairdocs.org/ntsb/ANC09FA052.md): Harden RV-7 · Elim, AK · Accident · 2 fatal · Field investigation · Final report · Jun 10, 2009 · N303BK · Substantial damage
  > The pilot's continued visual flight into instrument meteorological conditions, which resulted in an in-flight collision with terrain.
- [NTSB ANC08LA083](https://openairdocs.org/ntsb/ANC08LA083.md): Bell UH-1B · Iliamna, AK · Accident · No injuries · Limited investigation · Final report · Jun 30, 2008 · N64RA · Substantial damage
  > The failure of company maintenance personnel to ensure the helicopter was properly maintained, resulting in a severe in-flight vibration due to collective bounce. Contributing to the accident was loose and worn bearings on the helicopter's stabilizer bar,…
- [NTSB ANC08CA065](https://openairdocs.org/ntsb/ANC08CA065.md): de Havilland DHC-3 · Talkeetna, AK · Accident · No injuries · Data collection · Final report · Apr 28, 2008 · N565TA · Substantial damage
  > The pilot's selection of an unsuitable landing site, which resulted in an overload failure of the tail ski assembly during the landing roll.
- [NTSB ANC06FA136](https://openairdocs.org/ntsb/ANC06FA136.md): de Havilland DHC-2 · Kodiak, AK · Accident · 1 fatal · Field investigation · Final report · Sep 21, 2006 · N5154G · Substantial damage
  > The pilot's failure to maintain adequate airspeed while maneuvering to reverse direction, which resulted in an inadvertent stall and an uncontrolled descent. Factors associated with the accident were the inadvertent stall and wind gusts.
- [NTSB ANC06LA130](https://openairdocs.org/ntsb/ANC06LA130.md): McNabb Bushmaster · Delta Junction, AK · Accident · Minor injuries · Limited investigation · Final report · Sep 4, 2006 · N5090F · Substantial damage
  > An electrical short that disabled the electronic ignition system of the airplane's engine during the final approach phase for landing, which resulted in a forced landing and collision with high vegetation. A factor contributing to the accident was the failure…
- [NTSB ANC06FA018](https://openairdocs.org/ntsb/ANC06FA018.md): Aero Vodochody L-39MS · Ketchikan, AK · Accident · 1 fatal · Field investigation · Final report · Jan 25, 2006 · N104XX · Destroyed
  > The pilot's failure to follow published instrument landing procedures and his descent below approach minimums during an IFR circle to land approach, which resulted in the airplane striking the ocean and a loss of engine power. Factors contributing to the…
- [NTSB ANC05LA003](https://openairdocs.org/ntsb/ANC05LA003.md): Scan 30 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Oct 9, 2004 · N701Q · Substantial damage
  > An in-flight fire during cruise flight for an undetermined reason.
- [NTSB ANC04LA098](https://openairdocs.org/ntsb/ANC04LA098.md): de Havilland DHC-3 · McGrath, AK · Accident · 1 fatal · Limited investigation · Final report · Aug 28, 2004 · N197TT · Destroyed
  > The pilot's inadequate in-flight planning/decision making, his continued VFR flight into instrument meteorological conditions, and his failure to maintain obstacle clearance. Factors contributing to the accident were low ceilings due to smoke, rain, and mist.
- [NTSB ANC04LA093](https://openairdocs.org/ntsb/ANC04LA093.md): Hudson Hiperbipe SNS-7 · Palmer, AK · Accident · 1 fatal · Limited investigation · Final report · Aug 18, 2004 · N898DH · Destroyed
  > The pilot's failure to maintain control of the airplane, which resulted in an uncontrolled descent and subsequent in-flight collision with trees. A factor associated with the accident was a low altitude maneuver preformed by the pilot just after takeoff.
- [NTSB ANC04LA052](https://openairdocs.org/ntsb/ANC04LA052.md): Douglas C-54B · McGrath, AK · Accident · No injuries · Limited investigation · Final report · May 8, 2004 · N44911 · Substantial damage
  > A fuel tank explosion in the left wing auxiliary fuel tank, and subsequent fuel fire that occurred during engine start for an undetermined reason.
- [NTSB ANC03LA112](https://openairdocs.org/ntsb/ANC03LA112.md): Dusseau Kitfox · Nikiski, AK · Accident · No injuries · Limited investigation · Final report · Sep 11, 2003 · N20TZ · Substantial damage
  > A loss of engine power for an undetermined reason, which resulted in an overrun during the emergency landing, and subsequent nose over in swampy terrain.
- [NTSB ANC02LA052](https://openairdocs.org/ntsb/ANC02LA052.md): Grumman G-21 · Northway, AK · Accident · No injuries · Limited investigation · Final report · Jun 17, 2002 · N21A · Substantial damage
  > The pilot's inadequate compensation for wind conditions during the landing roll, which resulted in an inadvertent ground loop/swerve. A factor associated with the accident was a crosswind.
- [NTSB ANC01LA150](https://openairdocs.org/ntsb/ANC01LA150.md): Slepcev Storch SS-MK4 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Sep 28, 2001 · N69UP · Substantial damage
  > The pilot's failure to maintain directional control and an inadvertent ground loop/swerve during the landing roll.
- [NTSB ANC01LA146](https://openairdocs.org/ntsb/ANC01LA146.md): Douglas DC-6B · Nuiqsut, AK · Accident · Minor injuries · Limited investigation · Final report · Sep 26, 2001 · N867TA · Substantial damage
  > The flightcrew's continued use of an unstabilized GPS approach. Factors associated with the accident were low ceilings, and the inadequate coordination between the crew.
- [NTSB ANC98LA071](https://openairdocs.org/ntsb/ANC98LA071.md): Cessna 172 · Angoon, AK · Accident · No injuries · Limited investigation · Final report · Jun 12, 1998 · N171Q · Substantial damage
  > The pilot's failure to maintain directional control during the aborted takeoff. A factor associated with the accident was rough and uneven terrain.
- [NTSB ANC96LA069](https://openairdocs.org/ntsb/ANC96LA069.md): Gillespie Challenger 2 · Talkeetna, AK · Accident · No injuries · Limited investigation · Final report · May 5, 1996 · N1591G · Substantial damage
  > The pilot's failure to properly use the mixture control to enrich the fuel mixture, and the seizure of the piston in the cylinder.
- [NTSB ANC94FA130](https://openairdocs.org/ntsb/ANC94FA130.md): Piper PA-18 · Gulkana, AK · Accident · 1 fatal · Field investigation · Final report · Sep 5, 1994 · N7867D · Substantial damage
  > The pilot's failure to maintain clearance from terrain.
- [NTSB ANC93IA176](https://openairdocs.org/ntsb/ANC93IA176.md): Sikorsky C54A · Anita Bay, AK · Incident · No injuries · Incident investigation · Final report · Sep 12, 1993 · N44094 · Minor damage
  > The separation of the turbine blade from the power turbine disc.
- [NTSB ANC92LA157](https://openairdocs.org/ntsb/ANC92LA157.md): Sikorsky S-58G · Port Alsworth, AK · Accident · No injuries · Limited investigation · Final report · Sep 5, 1992 · N822G · Destroyed
  > Inflight engine compartment fire and post landing fire of undetermined origin.
- [NTSB ANC90LA135](https://openairdocs.org/ntsb/ANC90LA135.md): Aerospatiale SA-315B · Tok, AK · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 1990 · N58000 · Substantial damage
  > Improper installation of the fuel filter element in the aircraft by company/maintenance personnel, and subsequent contamination of the fuel system by unfiltered fuel. Factors related to the accident were: inadequate design of the fuel filter assembly, which…
- [NTSB ANC88LA123](https://openairdocs.org/ntsb/ANC88LA123.md): de Havilland DHC-2 · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Sep 4, 1988 · N906JS · Substantial damage
  > The airplane was on a climbout at approximately 1000 to 1200 feet m.s.l. when the engine quit and the pilot encountered an engine fire. The pilot elected to go back to the airport. The airplane crashed on the taxiway, and the airplane was substantially…
- [NTSB ANC88LA118](https://openairdocs.org/ntsb/ANC88LA118.md): Cessna 170B · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Aug 29, 1988 · N8266A · Substantial damage
  > The plt was practicing touch-&-go landings. On the first landing, the acft bounced & a successful go-around was made. During the second landing, the plt lost directional control of the acft & it went off the left side of the rwy & was damaged.
- [NTSB ANC88LA050](https://openairdocs.org/ntsb/ANC88LA050.md): Cessna 180 · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Apr 25, 1988 · N91290 · Substantial damage
  > The pilot returned to Fairbanks int'l airport from an intended cross-country flight due to deteriorating weather. During the flight the airplane felt out of trim, and she elected to land on the longest runway available (10,300). During the landing roll she…
- [NTSB ANC87LA069](https://openairdocs.org/ntsb/ANC87LA069.md): Fairchild C-119L · Shageluk, AK · Accident · No injuries · Limited investigation · Final report · May 14, 1987 · N8504X · Substantial damage
  > The airplane was destabilized by a slight vertical air movement on approach. The pilot touched the airplane down short of the runway proper, collapsing the landing gear before sliding off the strip into adjacent tundra.
- [NTSB ANC86LA164](https://openairdocs.org/ntsb/ANC86LA164.md): Cessna 195A · Willow, AK · Accident · No injuries · Limited investigation · Final report · Sep 9, 1986 · N9342A · Substantial damage
  > The pilot reported that while demonstrating high speed taxi, the airplane veered to the left, entered an open trench, and was damaged. An exam of the flight control and brake systems revealed no pre-accident mechanical malfunction or failure.

Next page: https://openairdocs.org/ntsb.md?engine=99999&state=AK&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" = 'AK' 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=AK

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