# NTSB investigations: Continental I0-470 series, 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 · 99 cases

## Latest cases

- [NTSB ANC25LA077](https://openairdocs.org/ntsb/ANC25LA077.md): Cessna 210-5 · Yakutat, AK · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 24, 2025 · N8457Z · Substantial damage
  > On July 23, 2025, about 1700 Alaska daylight time, a Cessna 210-5 (205) airplane, N8457Z, was substantially damaged when it was involved in an accident on a remote beach about 50 miles southeast of Yakutat, Alaska. The pilot was uninjured. The airplane was…
- [NTSB ANC20CA045](https://openairdocs.org/ntsb/ANC20CA045.md): Grumman G44 · Anchorage, AK · Accident · No injuries · Class 4 · Data collection · Final report · May 1, 2020 · N91040 · Substantial damage
  > The pilot's failure to extend the landing gear for a runway landing, which resulted in a gear-up landing.
- [NTSB ANC20CA022](https://openairdocs.org/ntsb/ANC20CA022.md): Cessna 182 · Koyuk, AK · Accident · No injuries · Class 4 · Data collection · Final report · Feb 20, 2020 · N969KM · Substantial damage
  > The pilot's failure to maintain directional control during a landing in flat light conditions, which resulted in a ground loop.
- [NTSB GAA19CA327](https://openairdocs.org/ntsb/GAA19CA327.md): Cessna 185 · Gulkana, AK · Accident · No injuries · Data collection · Final report · Jun 8, 2019 · N4057Y · Substantial damage
  > The pilot's loss of airplane control just before touchdown in gusting wind conditions, which resulted in ground loop after touchdown.
- [NTSB GAA18CA488](https://openairdocs.org/ntsb/GAA18CA488.md): Cessna 185 · Brooks Range, AK · Accident · No injuries · Data collection · Final report · Aug 12, 2018 · N62882 · Substantial damage
  > The airplane's encounter with downdraft conditions during takeoff, which resulted in a subsequent loss of altitude and collision with terrain.
- [NTSB ANC18LA019](https://openairdocs.org/ntsb/ANC18LA019.md): Cessna 210 · Juneau, AK · Accident · No injuries · Class 3 · Limited · Final report · Jan 14, 2018 · N3607Y · Substantial damage
  > A loss of hydraulic fluid due to a fatigue failure of the right main landing gear hydraulic actuator, which resulted in the pilot's inability to fully extend the landing gear and a main landing gear collapse during the landing roll.
- [NTSB ANC18FA003](https://openairdocs.org/ntsb/ANC18FA003.md): Cessna 210 · Russian Mission, AK · Accident · 1 fatal · Field investigation · Final report · Oct 16, 2017 · N8347Z · Destroyed
  > The pilot's decision to continue visual flight into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of control.
- [NTSB GAA17CA474](https://openairdocs.org/ntsb/GAA17CA474.md): Cessna 210 · Bettles, AK · Accident · No injuries · Data collection · Final report · Jul 8, 2017 · N9664X · Destroyed
  > The pilot's failure to maintain an appropriate glidepath during the approach to the runway over glassy water and in glaring sun conditions.
- [NTSB GAA16CA503](https://openairdocs.org/ntsb/GAA16CA503.md): Cessna 185 · Fairbanks, AK · Accident · Minor injuries · Data collection · Final report · Sep 22, 2016 · N5892T · Substantial damage
  > The pilot’s failure to recognize he was taking off with a tailwind and his inadequate compensation for taking off with a tailwind, which led to the airplane’s failure to attain a climb and a subsequent forced landing.
- [NTSB ANC16FA052](https://openairdocs.org/ntsb/ANC16FA052.md): Cessna 210-5 · Wasilla, AK · Accident · Minor injuries · Field investigation · Final report · Aug 5, 2016 · N1839Z · 2 aircraft · Substantial damage
  > The failure of both pilots to see and avoid each other while landing at a non-tower-controlled airport, which resulted in a midair collision. Contributing to the accident was the absence of radio calls from the Cessna during the traffic pattern preceding the…
- [NTSB ANC15LA048](https://openairdocs.org/ntsb/ANC15LA048.md): Cessna 210 · Juneau, AK · Accident · No injuries · Limited investigation · Final report · Jul 12, 2015 · N3607Y · Substantial damage
  > A loss of hydraulic fluid due to a fractured left main landing gear hydraulic actuator as a result of a fatigue crack, which led to the landing gear collapsing upon touchdown.
- [NTSB ANC14CA077](https://openairdocs.org/ntsb/ANC14CA077.md): Cessna 185 · Gakona, AK · Accident · No injuries · Data collection · Final report · Sep 7, 2014 · N432X · Substantial damage
  > The pilot's inability to maintain directional control after the airplane's main landing gear tire deflated during takeoff.
- [NTSB ANC13CA108](https://openairdocs.org/ntsb/ANC13CA108.md): Cessna 185 · Mentasta Lake, AK · Accident · No injuries · Data collection · Final report · Sep 7, 2013 · N432X · Substantial damage
  > The pilots improper flare, which resulted in a hard landing.
- [NTSB ANC13CA075](https://openairdocs.org/ntsb/ANC13CA075.md): Cessna 185D · North Pole, AK · Accident · No injuries · Data collection · Final report · Aug 8, 2013 · N75LE · Substantial damage
  > The malfunction of the right main wheel brake during taxi due to a faulty O-ring in the right brake pedal master cylinder.
- [NTSB ANC13FA058](https://openairdocs.org/ntsb/ANC13FA058.md): Beech 95-B55 · Cantwell, AK · Accident · 3 fatal · Field investigation · Final report · Jun 28, 2013 · N5JG · Destroyed
  > The pilot’s continued visual flight into instrument meteorological conditions, which resulted in an in-flight collision with mountainous terrain.
- [NTSB ANC13FA001](https://openairdocs.org/ntsb/ANC13FA001.md): Grumman G-44 · Aleknagik, AK · Accident · 1 fatal · Field investigation · Final report · Oct 8, 2012 · N139F · Substantial damage
  > The pilot's decision to make multiple low passes over the glassy surface water, which resulted in an impact with the surface of the lake.
- [NTSB ANC11LA084](https://openairdocs.org/ntsb/ANC11LA084.md): Grumman G-44 · Dillingham, AK · Accident · No injuries · Limited investigation · Final report · Aug 21, 2011 · N139F · Substantial damage
  > A loss of directional control during landing due to a rock lodged in the main landing gear wheel brake, resulting in a runway excursion and collision with terrain.
- [NTSB ANC11LA068](https://openairdocs.org/ntsb/ANC11LA068.md): Cessna 185 · Kenai, AK · Accident · No injuries · Limited investigation · Final report · Jul 25, 2011 · N9852X · Substantial damage
  > The loss of engine power for an undetermined reason, resulting in the ditching and sinking of the airplane in ocean waters.
- [NTSB ANC10LA087](https://openairdocs.org/ntsb/ANC10LA087.md): Cessna 185A · Paxson, AK · Accident · Serious injuries · Limited investigation · Final report · Sep 12, 2010 · N4038Y · Substantial damage
  > The pilot's decision to make a climbing turn close to the ground in gusting wind at a low airspeed, resulting in a loss of control and collision with terrain.
- [NTSB ANC09LA100](https://openairdocs.org/ntsb/ANC09LA100.md): Grumman G-44A · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Sep 17, 2009 · N86627 · Substantial damage
  > A fatigue fracture of an unapproved hydraulic brake line fitting, which resulted in a loss of control during the landing roll. Contributing to the accident was the installation of an unapproved part by an unknown maintenance personnel.
- [NTSB ANC07CA033](https://openairdocs.org/ntsb/ANC07CA033.md): Cessna 185 · Cantwell, AK · Accident · No injuries · Data collection · Final report · May 10, 2007 · N9832X · Substantial damage
  > The pilot's inadequate compensation for wind conditions during takeoff initial climb, which resulted in a descent into high vegetation, and a nose over. Factors contributing to the accident were the pilot's inadequate weather evaluation and a downdraft.
- [NTSB ANC06LA084](https://openairdocs.org/ntsb/ANC06LA084.md): Beech P35 · Gustavus, AK · Accident · No injuries · Limited investigation · Final report · Jul 1, 2006 · N8690M · Substantial damage
  > The fracture of an engine connecting rod during cruise flight, which resulted in a forced landing on a beach, a collapsed nose landing gear, and substantial damage to the fuselage.
- [NTSB ANC06LA001](https://openairdocs.org/ntsb/ANC06LA001.md): Cessna 185 · Iliamna, AK · Accident · No injuries · Limited investigation · Final report · Oct 3, 2005 · N9950X · Substantial damage
  > The pilot's inadequate preflight inspection, which failed to detect water-contaminated fuel, resulting in a loss of engine power during cruise flight, and subsequent in-flight collision with terrain.
- [NTSB ANC02LA126](https://openairdocs.org/ntsb/ANC02LA126.md): Cessna 185 · Seward, AK · Accident · No injuries · Limited investigation · Final report · Sep 3, 2002 · N9808X · Substantial damage
  > A loss of directional control of the airplane due to the failure of the pilot to correct for torque/P Factor during the takeoff roll. A factor in the accident was a wet grass surface.
- [NTSB ANC98LA138](https://openairdocs.org/ntsb/ANC98LA138.md): Grumman G-44 · Dillingham, AK · Accident · No injuries · Limited investigation · Final report · Sep 2, 1998 · N139F · Substantial damage
  > The pilot's failure to maintain clearance with terrain. Contributing factors were the pilot's delayed remedial action (course reversal), low ceilings, rain, fog, and mountainous terrain.
- [NTSB ANC98LA106](https://openairdocs.org/ntsb/ANC98LA106.md): Cessna 185 · Kenai, AK · Accident · No injuries · Limited investigation · Final report · Jul 23, 1998 · N5892T · Substantial damage
  > The pilot's failure to maintain directional control.
- [NTSB ANC97LA144](https://openairdocs.org/ntsb/ANC97LA144.md): Cessna 185 · Kotzebue, AK · Accident · No injuries · Limited investigation · Final report · Sep 3, 1997 · N185QB · Substantial damage
  > The collapse/deflation of the right main tire when the tire slipped on the tire wheel rim which resulted in the collapse of the right main landing gear due to overload.
- [NTSB ANC96LA040](https://openairdocs.org/ntsb/ANC96LA040.md): Cessna 185 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Mar 31, 1996 · N9875X · Substantial damage
  > the pilot's inadequate compensation for gusty crosswind conditions. The strong, gusty crosswind was a factor.
- [NTSB ANC95LA140](https://openairdocs.org/ntsb/ANC95LA140.md): Cessna 185A · Teller, AK · Accident · No injuries · Limited investigation · Final report · Aug 15, 1995 · N4145Y · Substantial damage
  > Deflation of the left main tundra tire due to valve stem damage (failure) when the tire rotated independently of the wheel rim, resulting in loss of directional control and a ground swerve.
- [NTSB ANC95LA071](https://openairdocs.org/ntsb/ANC95LA071.md): Grumman G-44 · Dillingham, AK · Accident · No injuries · Limited investigation · Final report · Jun 11, 1995 · N139F · Substantial damage
  > The pilot's failure to refuel the airplane, and his improper remedial action(s) which lead to fuel starvation.
- [NTSB ANC94LA053](https://openairdocs.org/ntsb/ANC94LA053.md): Beech 35 · Gustavus, AK · Accident · No injuries · Limited investigation · Final report · May 2, 1994 · N441B · Substantial damage
  > The pilot-in-command's delay in selecting the main fuel tank position. The lack of suitable terrain for a forced landing was a factor.
- [NTSB ANC93LA106](https://openairdocs.org/ntsb/ANC93LA106.md): Cessna 185 · Victory, AK · Accident · No injuries · Limited investigation · Final report · Jun 20, 1993 · N1679Z · Substantial damage
  > The pilot selected unsuitable terrain for landing.
- [NTSB ANC93LA097](https://openairdocs.org/ntsb/ANC93LA097.md): Cessna 180 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Jun 20, 1993 · N9968X · Substantial damage
  > Separation of the right main landing gear wheel.
- [NTSB ANC93LA086](https://openairdocs.org/ntsb/ANC93LA086.md): Cessna 185 · Barrow, AK · Accident · No injuries · Limited investigation · Final report · May 23, 1993 · N75LE · Substantial damage
  > The fatigue fracture of the main landing gear spring.
- [NTSB ANC92FA141](https://openairdocs.org/ntsb/ANC92FA141.md): Cessna 185 · Whittier, AK · Accident · 4 fatal · Field investigation · Final report · Aug 23, 1992 · N9829X · Destroyed
  > Pilot in command's intentional flight into known adverse weather conditions. Factors relating to the accident were: the pilot's disregard for adverse weather advisory, weather conditions (clouds) and mountainous terrain.
- [NTSB ANC91LA098](https://openairdocs.org/ntsb/ANC91LA098.md): Cessna 185A · Wood River, AK · Accident · No injuries · Limited investigation · Final report · Jul 13, 1991 · N1689Z · Substantial damage
  > The pilot's improper in-flight planning/decision, which resulted in fuel exhaustion due to an inadequate supply of fuel. Soft sand in the emergency landing area was a related factor.
- [NTSB ANC91LA002](https://openairdocs.org/ntsb/ANC91LA002.md): Cessna 185B · Koyuktolik, AK · Accident · No injuries · Limited investigation · Final report · Oct 7, 1990 · N2525Z · Substantial damage
  > Pilot-in-command's failure to properly execute a stabilized approach to the first 1/3 of the runway. Contributing to the accident was the excessive airpseed maintained during the approach and landing.
- [NTSB ANC90LA092](https://openairdocs.org/ntsb/ANC90LA092.md): Cessna 185-A · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Jun 22, 1990 · N4145Y · Substantial damage
  > Failure of the right main gear torque plate causing an uncontrollable landing roll out.
- [NTSB ANC89LA111](https://openairdocs.org/ntsb/ANC89LA111.md): Cessna 185 · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Jul 1, 1989 · N75LE · Substantial damage
  > The pilot's inadequate compensation for wind conditions. The crosswind and gusts were contributing factors.
- [NTSB ANC88LA141](https://openairdocs.org/ntsb/ANC88LA141.md): Cessna 185 · Mcclaren River, AK · Accident · No injuries · Limited investigation · Final report · Sep 16, 1988 · N73DA · Substantial damage
  > According to the pilot, the landing gear struck either a depression or an object on the riverbed/runway during takeoff roll and veered left. He corrected the deviation and continued taking off. However, when the airplane reached the end of the airstrip, he…
- [NTSB ANC88LA033](https://openairdocs.org/ntsb/ANC88LA033.md): Cessna 310Q · Mekoryuk, AK · Accident · No injuries · Limited investigation · Final report · Feb 28, 1988 · N7745Q · Substantial damage
  > The pilot stated that during the touchdown the aircraft struck a snowbank on the approach end of the runway. The aircraft exited the right side of the runway approximately 500 feet from the approach end.
- [NTSB ANC88FA021](https://openairdocs.org/ntsb/ANC88FA021.md): Cessna 185 · Fairbanks, AK · Accident · 3 fatal · Field investigation · Final report · Nov 27, 1987 · N4056Y · Destroyed
  > The pilot and his two passengers were returning from a hunting trip when the airplane crashed 7 miles from the Fairbanks international airport. The airplane struck the ground in a vertical attitude at a high rate of speed. Evidence at the scene suggests that…
- [NTSB ANC88FA012](https://openairdocs.org/ntsb/ANC88FA012.md): Cessna 185 · Anchorage, AK · Accident · No injuries · Field investigation · Final report · Oct 26, 1987 · N9946X · Substantial damage
  > The relatively inexperienced seaplane pilot-in-command made one go around when he experienced difficulty in identifying the surface of the glassy water. On the second landing attempt he flew the airplane into the water at a negative angle of attack. The…
- [NTSB ANC87LA157](https://openairdocs.org/ntsb/ANC87LA157.md): Cessna 185 · Little Delta Rv, AK · Accident · No injuries · Limited investigation · Final report · Sep 17, 1987 · N9914X · Substantial damage
  > The pilot stated that approximately 1000 feet after commencing the take off the airplane climbed to just above tree top level and then began to settle into the trees. The pilot also stated he believes the airplane stalled.
- [NTSB ANC87LA027](https://openairdocs.org/ntsb/ANC87LA027.md): Cessna 185D · North Pole, AK · Accident · No injuries · Limited investigation · Final report · Jan 27, 1987 · N75LE · Substantial damage
  > The pilot stated that during the right downwind approach to the airstrip the aircraft ran out of fuel; the engine quit and then he attempted an emergency landing. The plt attempted to land on the rwy. Inspection revealed no fuel in the acft and the fuel…
- [NTSB ANC86LA028](https://openairdocs.org/ntsb/ANC86LA028.md): Cessna 182-A · Merrill Pass, AK · Accident · Serious injuries · Limited investigation · Final report · Feb 9, 1986 · N3813D · Destroyed
  > The pilot stated that he could see the whiteout condition ahead. During the 180 deg turn the aircraft struck the 3000 foot level of the mountian Pass. At the time of the accident the weather was a complete IFR whiteout condition.
- [NTSB ANC85LA095](https://openairdocs.org/ntsb/ANC85LA095.md): Cessna 185 · Kantishna, AK · Accident · No injuries · Limited investigation · Final report · Jun 14, 1985 · N75LE · Substantial damage
  > The plt was on a flt from fairbanks to Kantishna, AK; however, the rwy at Kantishna was muddy, so he elected to return to fairbanks. While returning, he elected to land at an abandoned mine strip for a comfort stop. During the landing, a hydraulic line to the…
- [NTSB ANC85LA082](https://openairdocs.org/ntsb/ANC85LA082.md): Cessna C-185 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · May 13, 1985 · N5815T · Substantial damage
  > The pilot in command touched down on a dry runway in a crab angle and lost control of the airplane resulting in ground loop.
- [NTSB ANC85LA017](https://openairdocs.org/ntsb/ANC85LA017.md): Cessna 310J · Tok, AK · Accident · Minor injuries · Limited investigation · Final report · Nov 12, 1984 · N313SL · Substantial damage
  > The acft crashed during an emerg night landing after the loss of pwr on both engines. Investigation revealed the rt eng was secured because of decreasing oil pressure & a visible oil leak. There were seven airports within reach of the acft when this eng was…
- [NTSB ANC84LA191](https://openairdocs.org/ntsb/ANC84LA191.md): Cessna 185 · Mt Plummer, AK · Accident · No injuries · Limited investigation · Final report · Sep 21, 1984 · N1688Z · Substantial damage
  > The plt stated that while landing in a crosswind, he ground looped the airplane. The acft departed the airstrip surface and rolled off the mountainside backward.

Next page: https://openairdocs.org/ntsb.md?engine=17027&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 ('17027'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17027&state=AK

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