# NTSB investigations: Continental TSIO-520 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. ## Latest cases - [NTSB ANC25FA035](https://openairdocs.org/ntsb/ANC25FA035.md): Cessna T207 · Nanwalek, AK · Accident · 2 fatal · Class 3 · Field · Preliminary report · Apr 28, 2025 · N91025 · Substantial damage > On April 28, 2025, about 1355 Alaska daylight time, a Cessna T207 airplane, N91025, was substantially damaged when it was involved in an accident near Nanwalek, Alaska. The pilot and one passenger were fatally injured. One passenger was seriously injured. The… - [NTSB ANC23LA065](https://openairdocs.org/ntsb/ANC23LA065.md): Beech B36TC · Cape Yakataga, AK · Accident · 2 fatal · Class 3 · Limited · Final report · Aug 27, 2023 · N6709Q · Destroyed > The pilot’s continued flight into moderate to severe icing conditions, including supercooled large droplets, over mountainous terrain, which resulted in a loss of control and impact with terrain. Contributing to the accident was the National Weather Service… - [NTSB GAA16CA445](https://openairdocs.org/ntsb/GAA16CA445.md): Cessna T207 · Nanwalek, AK · Accident · No injuries · Data collection · Final report · Aug 23, 2016 · N91025 · Substantial damage > The pilot’s unstabilized approach and a subsequent runway overrun while landing on a short runway in variable wind conditions. - [NTSB ANC12CA040](https://openairdocs.org/ntsb/ANC12CA040.md): Cessna T210L · Whittier, AK · Accident · No injuries · Data collection · Final report · May 20, 2012 · N732BE · Substantial damage > The pilot’s failure use the prelanding checklist and to extend the landing gear before landing. - [NTSB ANC10CA093](https://openairdocs.org/ntsb/ANC10CA093.md): Cessna T310R · Nome, AK · Accident · Minor injuries · Data collection · Final report · Sep 15, 2010 · N87256 · Substantial damage > The pilot's failure to maintain clearance from terrain during a special VFR approach, resulting in a collision with terrain. - [NTSB ANC08CA120](https://openairdocs.org/ntsb/ANC08CA120.md): Cessna T207 · Nyac, AK · Accident · No injuries · Data collection · Final report · Sep 9, 2008 · N1754U · Substantial damage > The pilot's selection of unsuitable terrain for landing, which resulted in the nose wheel separating from the airplane during the landing roll. - [NTSB ANC08LA095](https://openairdocs.org/ntsb/ANC08LA095.md): Cessna T210 · Ketchikan, AK · Accident · Minor injuries · Limited investigation · Final report · Aug 2, 2008 · N59214 · Substantial damage > The pilot's failure to ensure that there was sufficient fuel on board the airplane for the planned flight, and his inadequate flight planning and navigation, which resulted in fuel exhaustion and ditching short of the planned destination. Contributing to the… - [NTSB ANC07LA021](https://openairdocs.org/ntsb/ANC07LA021.md): Cessna 402C · Cordova, AK · Accident · No injuries · Limited investigation · Final report · Feb 20, 2007 · N402ET · Substantial damage > The failure of the right main landing gear linkage during the landing roll, which resulted in a loss of directional control and the collapse of the right main landing gear. A factor associated with the accident was the failure of company maintenance personnel… - [NTSB ANC06LA144](https://openairdocs.org/ntsb/ANC06LA144.md): Cessna TU206A · Juneau, AK · Accident · No injuries · Limited investigation · Final report · Oct 1, 2006 · N206AK · Substantial damage > The separation of the number 6 cylinder assembly from the engine during cruise flight, which resulted in a hard forced landing in rough ocean swells. A factor contributing to the accident was the rough ocean swells. - [NTSB ANC05FA090](https://openairdocs.org/ntsb/ANC05FA090.md): Cessna T207 · Nanwalek, AK · Accident · 3 fatal · Field investigation · Final report · Jul 1, 2005 · N1621U · Destroyed > The pilot's continued VFR flight into instrument meteorological conditions, which resulted in an in-flight collision with an island cliff during cruise flight. A factor contributing to the accident was fog in the area of the accident. - [NTSB ANC04CA085](https://openairdocs.org/ntsb/ANC04CA085.md): Cessna 402C · Huslia, AK · Accident · No injuries · Data collection · Final report · Aug 5, 2004 · N300SN · Substantial damage > The pilot's failure to extend the landing gear, which resulted in an inadvertent wheels up landing. A factor associated with the accident was the pilot's diverted attention. - [NTSB ANC04LA011](https://openairdocs.org/ntsb/ANC04LA011.md): Cessna 402 · Galena, AK · Accident · No injuries · Limited investigation · Final report · Nov 13, 2003 · N402ET · Substantial damage > Water contamination and freezing of the landing gear actuator that prevented the extension of the right main landing gear, resulting in a gear-up landing. Factors contributing to the accident were freezing temperatures at the accident location, and inadequate… - [NTSB ANC03LA076](https://openairdocs.org/ntsb/ANC03LA076.md): Cessna 401 · Gustavus, AK · Accident · 4 fatal · Limited investigation · Final report · Jul 14, 2003 · N6296Q · Destroyed > The pilot's inadequate in-flight decision making process, and failure to refuel the airplane prior to fuel exhaustion, which resulted in a total loss of engine power. A factor associated with the accident was the lack of a suitable forced landing site. - [NTSB ANC03LA065](https://openairdocs.org/ntsb/ANC03LA065.md): Cessna 402B · Telida, AK · Accident · No injuries · Limited investigation · Final report · Jun 9, 2003 · N710WS · Substantial damage > The pilot's selection of an unsuitable landing site, which resulted in the collapse of the nose landing gear. A factor in the accident was a soft runway. - [NTSB ANC02LA128](https://openairdocs.org/ntsb/ANC02LA128.md): Cessna 207 · Circle, AK · Accident · No injuries · Limited investigation · Final report · Sep 15, 2002 · N207DG · Substantial damage > The pilot's inadequate wind evaluation during takeoff resulting in a downwind takeoff and subsequent overrun during an aborted takeoff. Factors in the accident were a tailwind and the pilot's failure to verify the selected flap setting. - [NTSB ANC01LA103](https://openairdocs.org/ntsb/ANC01LA103.md): Cessna 207 · Pilot Point, AK · Accident · No injuries · Limited investigation · Final report · Jul 18, 2001 · N100PC · Substantial damage > The pilot's selection of an unsuitable takeoff area, and failure to maintain clearance. A factor associated with the accident was a vehicle mounted gantry. - [NTSB ANC00LA103](https://openairdocs.org/ntsb/ANC00LA103.md): Cessna 185 · Kaktovik, AK · Accident · No injuries · Limited investigation · Final report · Aug 17, 2000 · N1205F · Substantial damage > The pilot's selection of an unsuitable takeoff area on the airstrip. Factors associated with this accident were the rough takeoff area, and the pilot's loss of directional control. - [NTSB ANC00LA061](https://openairdocs.org/ntsb/ANC00LA061.md): Cessna 402C · Cordova, AK · Accident · No injuries · Limited investigation · Final report · May 22, 2000 · N402ET · Substantial damage > An in-flight collision with a bird. - [NTSB ANC98FA168](https://openairdocs.org/ntsb/ANC98FA168.md): Cessna TU-206G · Ketchikan, AK · Accident · 1 fatal · Field investigation · Final report · Sep 29, 1998 · N4820U · Destroyed > The pilot's continued VFR flight into instrument meteorological conditions. Contributing factors were low ceilings and mountainous/hilly terrain. - [NTSB ANC98LA149](https://openairdocs.org/ntsb/ANC98LA149.md): Cessna 207 · Sleetmute, AK · Accident · No injuries · Limited investigation · Final report · Sep 13, 1998 · N1754U · Substantial damage > The pilot's selection of unsuitable terrain for departure. A factor in the accident was a narrow runway. - [NTSB ANC98LA034](https://openairdocs.org/ntsb/ANC98LA034.md): Cessna 185F · Coldfoot, AK · Accident · No injuries · Limited investigation · Final report · Apr 3, 1998 · N1205F · Substantial damage > The pilot's selection of unsuitable terrain for takeoff. Soft, snow covered terrain was a factor in the accident. - [NTSB ANC97LA150](https://openairdocs.org/ntsb/ANC97LA150.md): Cessna 402C · Kivalina, AK · Accident · No injuries · Limited investigation · Final report · Sep 15, 1997 · N2649Z · Substantial damage > An overstress fracture of the nose landing gear attachment. A factor associated with the accident was the rough landing area. - [NTSB ANC97LA145](https://openairdocs.org/ntsb/ANC97LA145.md): Cessna 402C · Buckland, AK · Accident · No injuries · Limited investigation · Final report · Sep 8, 1997 · N2649Z · 2 aircraft · Substantial damage > The failure of the pilot of the Cessna 402C, N2649Z, to maintain adequate clearance while taxiing alongside the stationary Cessna 208B, N1123R. - [NTSB ANC96LA093](https://openairdocs.org/ntsb/ANC96LA093.md): Cessna 206 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Jun 29, 1996 · N5244Z · 2 aircraft · Substantial damage > The pilot of the Cessna 180, N5020E, disregard of an air traffic control clearance/instruction to hold short. A factor in the accident was the failure of both pilots to maintain an adequate visual lookout for other aircraft. - [NTSB ANC95LA159](https://openairdocs.org/ntsb/ANC95LA159.md): Cessna 206 · Homer, AK · Accident · No injuries · Limited investigation · Final report · Sep 6, 1995 · N37EW · Substantial damage > The pilot's inadequate compensation for the wind conditions, which resulted in his failure to reach the proper touchdown point for landing. Factors related to the accident were: the variable wind condition, and rising terrain (no overrun) at the approach end… - [NTSB ANC95LA094](https://openairdocs.org/ntsb/ANC95LA094.md): Beech 36 · Chitina, AK · Accident · No injuries · Limited investigation · Final report · Jul 4, 1995 · N8067U · Substantial damage > An inadvertent stall while on approach. The pilot-in-command's inadequate remedial action was a factor. - [NTSB ANC95LA077](https://openairdocs.org/ntsb/ANC95LA077.md): Cessna 402B · Tuntutuliak, AK · Accident · No injuries · Limited investigation · Final report · Jun 12, 1995 · N710WS · Substantial damage > The airport maintenance personnel's inadequate maintenance of the runway by not replacing the yellow cones that marked the soft area. The soft area on the runway was a related factor. - [NTSB ANC95LA040](https://openairdocs.org/ntsb/ANC95LA040.md): Cessna 206G · Chevak, AK · Accident · No injuries · Limited investigation · Final report · Mar 29, 1995 · N756TA · Substantial damage > The pilot's misjudgment of the landing flare and failure to maintain adequate airspeed to avoid stalling the airplane. - [NTSB ANC94LA035](https://openairdocs.org/ntsb/ANC94LA035.md): Cessna 402 · Kivalina, AK · Accident · No injuries · Limited investigation · Final report · Feb 27, 1994 · N681RC · Substantial damage > The pilot's inadequate compensation for the wind conditions by landing on the left side of the runway. Factors were: inadequate snow removal and the snow covered runway. - [NTSB ANC93LA068](https://openairdocs.org/ntsb/ANC93LA068.md): Cessna 402B · Kivalina, AK · Accident · No injuries · Limited investigation · Final report · May 25, 1993 · N401NA · Substantial damage > The pilot's failure to check the condition of the runway before takeoff. The soft runway condition was a factor in the accident. - [NTSB ANC90LA132](https://openairdocs.org/ntsb/ANC90LA132.md): Cessna C-T210 · Sleeper Bay, AK · Accident · No injuries · Limited investigation · Final report · Aug 6, 1990 · N6016N · Substantial damage > Improper fuel tank selection. - [NTSB ANC88FA111](https://openairdocs.org/ntsb/ANC88FA111.md): Cessna 402B · Mt. Torbet, AK · Accident · 2 fatal · Field investigation · Final report · Aug 18, 1988 · N5718M · Substantial damage > The on-demand-charter flight was to originally pickup passengers and cargo but a landing gear problem forced another airplane with a mechanic to be dispatched. The other airplane returned with the passengers and the accident airplane was repaired by the… - [NTSB ANC88FA019](https://openairdocs.org/ntsb/ANC88FA019.md): Cessna 402B · Anchorage, AK · Accident · Minor injuries · Field investigation · Final report · Dec 9, 1987 · N969JW · Substantial damage > Drg arr in hvy traffic, reeve flt 726 (Boeing 727) & wilburs flt 304 (Cessna 402B, N969JW) recd radar adzys for visual apchs to rwys 6L & 6R, respectively. Subsequently, both flts were clrd to lnd. At 1555:04, the LCL twr ctlr transmitted that the wnd at the… - [NTSB ANC88IA013](https://openairdocs.org/ntsb/ANC88IA013.md): Cessna 402B · Cordova, AK · Incident · No injuries · Incident investigation · Final report · Oct 26, 1987 · N5718M · Minor damage > The company maintenance personnel were aware of a shimmy problem but they thought is was only worn bushings. The maintenance people stated they inspected the part but found no problem. The pilot-in-command also stated he found no problem upon visually… - [NTSB ANC87LA162](https://openairdocs.org/ntsb/ANC87LA162.md): Cessna 206G · 100mi S.Kng Slm, AK · Accident · No injuries · Limited investigation · Final report · Sep 19, 1987 · N756TT · Substantial damage > The aircraft experienced an engine power loss while in cruise flight and subsequently undershot a lake during the emergency landing. Examination of the engine revealed the number 2 bearing was found completely disintegrated and missing from its seat. Evidence… - [NTSB ANC87IA011](https://openairdocs.org/ntsb/ANC87IA011.md): Cessna 402C · Kivalina, AK · Incident · No injuries · Incident investigation · Final report · Oct 8, 1986 · N1233T · Minor damage > The roll pin and safety wire which retain the main landing gear forward trunnion pin were broken and the forward trunnion pin on the right main landing gear was found 'backed out', thereby releasing the right main landing gear trunnion. - [NTSB ANC84LA177](https://openairdocs.org/ntsb/ANC84LA177.md): Cessna P210N · Point Hope, AK · Accident · Serious injuries · Limited investigation · Final report · Sep 16, 1984 · N731FT · Substantial damage > The acft crashed during an attempted night takeoff with the plt controlled rwy lights turned off. The plt stated he had consumed a couple of alchoholic beverages earlier in the evening; and although approached by several people to fly, he stated he refused… - [NTSB ANC84LA174](https://openairdocs.org/ntsb/ANC84LA174.md): Cessna T-207 · Daniels Creek, AK · Accident · Minor injuries · Limited investigation · Final report · Sep 15, 1984 · N1540U · Substantial damage > Pilot stated that after landing 100 feet past the runway threshold, the aircraft appeared not to be stopping when brakes were applied. A go-around was initiated, but the aircraft failed to get airborne and ran off the departure end ofthe strip colliding with… - [NTSB ANC84FA065](https://openairdocs.org/ntsb/ANC84FA065.md): Cessna TP206D · Homer, AK · Accident · No injuries · Field investigation · Final report · May 11, 1984 · N346RN · Substantial damage > The eng quite once, but the plt was able to restart it by turning on the boost pump. He landed at 2 different arpts after the initial failure, once to refuel & drain the fuel tanks & once to check the fuel lines & components under the cowling. Aprx 1 hr after… - [NTSB ANC83LA057](https://openairdocs.org/ntsb/ANC83LA057.md): Cessna TU206G · Glennallen, AK · Accident · No injuries · Limited investigation · Final report · Mar 13, 1983 · N5102X · Substantial damage > The acft collided with a snowbank and ground looped during landing on a snow covered narrow runway. The pilot had been inactive in flying for several years and had recently purchased the accident acft. He had 9 hours dual and 3 hours solo in this acft. He… - [NTSB ANC82DA047](https://openairdocs.org/ntsb/ANC82DA047.md): Cessna 402B · Grayling, AK · Accident · No injuries · Final report · Jun 9, 1982 · N5718M · Substantial damage > The left main landing gear collapsed during landing rollout. Part of the landing gear system failed in shear overstress. - [NTSB ANC81FA108](https://openairdocs.org/ntsb/ANC81FA108.md): Cessna 340A · Ketchikan, AK · Accident · 4 fatal · Closed · Sep 5, 1981 · N2695A · Destroyed - [NTSB ANC79DA098](https://openairdocs.org/ntsb/ANC79DA098.md): Cessna T207A · Scammon Bay, AK · Accident · Minor injuries · Closed · Sep 30, 1979 · N7305U · Substantial damage - [NTSB ANC79FA068](https://openairdocs.org/ntsb/ANC79FA068.md): Cessna 402B · Anchorage, AK · Accident · 7 fatal · Closed · Jul 12, 1979 · N402TH · Destroyed - [NTSB ANC78FA018](https://openairdocs.org/ntsb/ANC78FA018.md): Cessna 320D · Wrangell, AK · Accident · 5 fatal · Closed · Feb 5, 1978 · N234M · Destroyed - [NTSB ANC75AA060](https://openairdocs.org/ntsb/ANC75AA060.md): Cessna 402B · Barrow, AK · Accident · Minor injuries · Closed · Feb 28, 1975 · N5718M · Substantial damage ## 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 ('17040')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=17040&state=AK --- 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.