# NTSB investigations, 2011, 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 3 · 104 cases

## Latest cases

- [NTSB ANC12CA016](https://openairdocs.org/ntsb/ANC12CA016.md): Cessna 207A · Kwigillingok, AK · Accident · Minor injuries · Data collection · Final report · Dec 21, 2011 · N6480H · Substantial damage
  > The pilot’s decision to continue visual flight into instrument meteorological conditions with moderate icing, which resulted in structural icing and an aerodynamic stall.
- [NTSB ANC12FA014](https://openairdocs.org/ntsb/ANC12FA014.md): Cessna U206G · Nanwalek, AK · Accident · Minor injuries · Field investigation · Final report · Dec 15, 2011 · N252AL · Substantial damage
  > The pilot’s decision to takeoff from a contaminated runway with unfavorable wind conditions, and his failure to maintain airspeed during the initial climb, which resulted in an aerodynamic stall. Contributing to the accident was the operator’s inadequate…
- [NTSB ANC12CA015](https://openairdocs.org/ntsb/ANC12CA015.md): Piper PA-31-350 · Hughes, AK · Accident · No injuries · Data collection · Final report · Dec 15, 2011 · N9FW · Substantial damage
  > The pilot did not clear the area surrounding the airplane prior to taxi, resulting in the airplane contacting a piece of baggage.
- [NTSB ANC12CA012](https://openairdocs.org/ntsb/ANC12CA012.md): Piper PA-31-350 · Kaltag, AK · Accident · No injuries · Data collection · Final report · Dec 8, 2011 · N300ED · Substantial damage
  > The pilot landed without lowering the landing gear. Contributing to the accident was the pilot's self-reported fatigue.
- [NTSB ANC12FA009](https://openairdocs.org/ntsb/ANC12FA009.md): Cessna 207 · Chuathbaluk, AK · Accident · 1 fatal · Field investigation · Final report · Nov 29, 2011 · N1673U · Substantial damage
  > The pilot’s loss of situational awareness after an inadvertent encounter with instrument meteorological conditions, which resulted in an in-flight collision with tree-covered terrain.
- [NTSB ANC12CA010](https://openairdocs.org/ntsb/ANC12CA010.md): Cessna A185F · Talkeetna, AK · Accident · No injuries · Data collection · Final report · Nov 23, 2011 · N121EE · Substantial damage
  > A broken wheel/ski clevis pin, which allowed the ski to pivot upward and strike the right wing lift strut.
- [NTSB ANC12TA008](https://openairdocs.org/ntsb/ANC12TA008.md): Bellanca 8GCBC · Delta Junction, AK · Accident · No injuries · Final report · Nov 11, 2011 · N88417 · Substantial damage
  > Ice accretion in the main landing gear wheel brakes, which prevented the main landing gear wheels from rotating on landing, which resulted in the airplane nosing over.
- [NTSB ANC12LA002](https://openairdocs.org/ntsb/ANC12LA002.md): Cessna 207A · Kwigillingok, AK · Accident · Minor injuries · Limited investigation · Final report · Nov 7, 2011 · N6314H · Substantial damage
  > The pilot's failure to abort the takeoff when he realized the airplane could not attain sufficient takeoff and climb performance and his improper decision to depart from an airport where night operations were prohibited.
- [NTSB ANC12FA006](https://openairdocs.org/ntsb/ANC12FA006.md): Eurocopter AS 350 B2 · Iliamna, AK · Accident · 1 fatal · Field investigation · Final report · Oct 30, 2011 · N165EH · Destroyed
  > The pilot's loss of control due to sudden medical impairment or incapacitation.
- [NTSB ANC12CA005](https://openairdocs.org/ntsb/ANC12CA005.md): Piper PA-18-150 · Portage, AK · Accident · No injuries · Data collection · Final report · Oct 22, 2011 · N82481 · Substantial damage
  > The pilot's selection of unsuitable terrain for landing.
- [NTSB ANC12CA004](https://openairdocs.org/ntsb/ANC12CA004.md): Bellanca 7GCBC · Aniak, AK · Accident · No injuries · Data collection · Final report · Oct 22, 2011 · N11668 · Substantial damage
  > The pilot's excessive use of brakes during landing.
- [NTSB ANC12CA003](https://openairdocs.org/ntsb/ANC12CA003.md): Piper PA-18 · Skwentna, AK · Accident · No injuries · Data collection · Final report · Oct 10, 2011 · N124GS · Substantial damage
  > The pilot's inadequate clearance from a tree during an off-airport landing.
- [NTSB ANC11CA112](https://openairdocs.org/ntsb/ANC11CA112.md): Cessna 180 · Haines, AK · Accident · No injuries · Data collection · Final report · Sep 27, 2011 · N3126D · Substantial damage
  > The pilot's loss of directional control during takeoff in a float-equipped airplane for an undetermined reason, which resulted in the airplane colliding with trees and the shore.
- [NTSB ANC11CA111](https://openairdocs.org/ntsb/ANC11CA111.md): Cessna 180H · Chenga Bay, AK · Accident · No injuries · Data collection · Final report · Sep 27, 2011 · N9083M · Substantial damage
  > The pilot's failure to maintain clearance from an obstruction while landing at an off-airport site, resulting in a loss of control.
- [NTSB ANC11TA109](https://openairdocs.org/ntsb/ANC11TA109.md): Cub Crafters CC18-180 · Palmer, AK · Accident · No injuries · Final report · Sep 26, 2011 · N907CF · Substantial damage
  > The pilot's excessive application of the brakes during landing, which resulted in a nose-over.
- [NTSB ANC11LA108](https://openairdocs.org/ntsb/ANC11LA108.md): Eurocopter AS 350 BA · Juneau, AK · Accident · No injuries · Limited investigation · Final report · Sep 26, 2011 · N230CH · Substantial damage
  > Upslope wind conditions while the helicopter was operating at ground idle, which resulted in the helicopter rollover. Contributing to the accident was the lack of manufacturer data regarding the effect of upslope wind conditions on helicopter ground idle…
- [NTSB ANC11CA115](https://openairdocs.org/ntsb/ANC11CA115.md): Piper PA-18-150 · Fairbanks, AK · Accident · No injuries · Data collection · Final report · Sep 26, 2011 · N8998Y · Substantial damage
  > The student pilot's hard landing in a gusting wind.
- [NTSB ANC11CA113](https://openairdocs.org/ntsb/ANC11CA113.md): Piper PA-12 · Talkeetna, AK · Accident · No injuries · Data collection · Final report · Sep 26, 2011 · N2945M · Substantial damage
  > The pilot’s decision to take off from an off-airport site in variable wind.
- [NTSB ANC11FA107](https://openairdocs.org/ntsb/ANC11FA107.md): Dehavilland DHC-3T · Kodiak, AK · Accident · 1 fatal · Field investigation · Final report · Sep 24, 2011 · N361TT · Substantial damage
  > The pilot’s failure to maintain clearance from a tree during a low altitude maneuver and his failure to maintain control of the airplane. Contributing to the accident was the pilot’s use of over-the-counter sedating medications.
- [NTSB ANC11TA110](https://openairdocs.org/ntsb/ANC11TA110.md): Bell 206 B3 · Seward, AK · Accident · No injuries · Final report · Sep 23, 2011 · N204PA · Substantial damage
  > The pilot's failure to maintain clearance from snow-covered terrain during hover in deteriorating weather and flat light conditions, which resulted in a tail rotor strike.
- [NTSB ANC11CA106](https://openairdocs.org/ntsb/ANC11CA106.md): Piper PA-12 · Beluga, AK · Accident · No injuries · Data collection · Final report · Sep 23, 2011 · N78564 · Substantial damage
  > The pilot's decision to take off uphill into rising terrain.
- [NTSB ANC11CA096](https://openairdocs.org/ntsb/ANC11CA096.md): Cessna 170B · Fairbanks, AK · Accident · No injuries · Data collection · Final report · Sep 20, 2011 · N2810C · Substantial damage
  > The pilot's failure to maintain control of the airplane while taking off with a gusting crosswind.
- [NTSB ANC11CA105](https://openairdocs.org/ntsb/ANC11CA105.md): Piper PA-18-150 · Bethel, AK · Accident · No injuries · Data collection · Final report · Sep 17, 2011 · N82907 · Substantial damage
  > The pilot's delayed decision to abort the takeoff.
- [NTSB ANC11CA104](https://openairdocs.org/ntsb/ANC11CA104.md): Cessna 170B · Fairbanks, AK · Accident · No injuries · Data collection · Final report · Sep 17, 2011 · N4597C · Substantial damage
  > The pilot's failure to maintain directional control during landing. Contributing to the accident was the pilot's lack of experience/training in tailwheel-equipped airplanes.
- [NTSB ANC11LA103](https://openairdocs.org/ntsb/ANC11LA103.md): Cessna U206G · Beluga, AK · Accident · No injuries · Limited investigation · Final report · Sep 15, 2011 · N1779R · Substantial damage
  > The total loss of engine power for an undetermined reason.
- [NTSB ANC11CA098](https://openairdocs.org/ntsb/ANC11CA098.md): Cessna 180A · McGrath, AK · Accident · No injuries · Data collection · Final report · Sep 14, 2011 · N7814A · Substantial damage
  > The pilot's loss of control when encountering a downdraft during the initial climb after takeoff, resulting in a collision with terrain.
- [NTSB ANC11CA102](https://openairdocs.org/ntsb/ANC11CA102.md): Cessna 180 · Ambler, AK · Accident · No injuries · Data collection · Final report · Sep 13, 2011 · N9019C · Substantial damage
  > The pilot's decision to takeoff with a tailwind, which resulted in a runway excursion.
- [NTSB ANC11LA100](https://openairdocs.org/ntsb/ANC11LA100.md): Piper PA-18A 150 · Galena, AK · Accident · No injuries · Limited investigation · Final report · Sep 8, 2011 · N2694P · Substantial damage
  > The total loss of engine power for undetermined reasons.
- [NTSB ANC11CA097](https://openairdocs.org/ntsb/ANC11CA097.md): Piper PA-12 · Anchorage, AK · Accident · No injuries · Data collection · Final report · Sep 5, 2011 · N3654M · Substantial damage
  > The pilot's misidentification of the runway environment in dusk light conditions.
- [NTSB ANC11CA095](https://openairdocs.org/ntsb/ANC11CA095.md): Cessna 170A · Anchorage, AK · Accident · No injuries · Data collection · Final report · Sep 5, 2011 · N5406C · Substantial damage
  > The fracture of a hydraulic brake line fitting due to incorrect installation of the brake line by the pilot/owner, which resulted in a loss of brake pressure and subsequent loss of directional control during the landing roll.
- [NTSB ANC11CA094](https://openairdocs.org/ntsb/ANC11CA094.md): Piper PA-12 · North Pole, AK · Accident · No injuries · Data collection · Final report · Sep 5, 2011 · N78463 · Substantial damage
  > The pilot's failure to maintain adequate airspeed during takeoff, resulting in an aerodynamic stall and collision with the water.
- [NTSB ANC11FA093](https://openairdocs.org/ntsb/ANC11FA093.md): Piper PA-18-150 · McGrath, AK · Accident · Serious injuries · Field investigation · Final report · Sep 4, 2011 · N13973 · Substantial damage
  > The pilot inadvertently switched off the engine magnetos during short final approach, which resulted in a loss of engine power. Contributing to the accident was the manufacturer's placement of the magneto switches in the cabin.
- [NTSB ANC11CA092](https://openairdocs.org/ntsb/ANC11CA092.md): Piper PA-18-150 · Deadhorse, AK · Accident · No injuries · Data collection · Final report · Sep 4, 2011 · N83283 · Substantial damage
  > The pilot's continued visual flight into instrument meteorological conditions.
- [NTSB ANC11FA091](https://openairdocs.org/ntsb/ANC11FA091.md): Cessna 208B · Nightmute, AK · Accident · 1 fatal · Field investigation · Final report · Sep 2, 2011 · N207DR · 2 aircraft · Destroyed
  > The failure of the pilot of the other airplane to maintain adequate clearance while performing an unexpected and unannounced abrupt maneuver, resulting in a midair collision between the two airplanes.
- [NTSB ANC11LA099](https://openairdocs.org/ntsb/ANC11LA099.md): Robinson Helicopter R22 Beta · Unalaska, AK · Accident · No injuries · Limited investigation · Final report · Aug 30, 2011 · N169CW · Substantial damage
  > A loss of engine power in cruise flight for undetermined reasons.
- [NTSB ANC11CA089](https://openairdocs.org/ntsb/ANC11CA089.md): Piper PA-18-150 · Cape Yakataga, AK · Accident · No injuries · Data collection · Final report · Aug 30, 2011 · N82448 · Substantial damage
  > The pilot inadvertently switching off the engine magnetos during the initial climb, resulting in a loss of engine power. Contributing to the accident was the manufacturer's placement of the magneto switches.
- [NTSB ANC11CA086](https://openairdocs.org/ntsb/ANC11CA086.md): Piper PA-18-150 · Beluga Lake, AK · Accident · No injuries · Data collection · Final report · Aug 25, 2011 · N8491Y · Substantial damage
  > The pilot's decision to takeoff with an unfavorable wind which resulted in a loss of directional control, and collision with terrain.
- [NTSB ANC11CA085](https://openairdocs.org/ntsb/ANC11CA085.md): Maule M-5-210C · Tok, AK · Accident · No injuries · Data collection · Final report · Aug 24, 2011 · N62019 · Substantial damage
  > The pilot's failure to go-around soon enough to preclude the necessity of a forced landing due to the airplane's inability to outclimb ascending terrain.
- [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 ANC11CA083](https://openairdocs.org/ntsb/ANC11CA083.md): Cessna 180A · Igiugig, AK · Accident · No injuries · Data collection · Final report · Aug 20, 2011 · N26CZ · Substantial damage
  > The pilot's decision to take off in a variable wind, resulting in a shallow climb and collision with terrain.
- [NTSB ANC11CA082](https://openairdocs.org/ntsb/ANC11CA082.md): Piper PA-20 · Tyonek, AK · Accident · No injuries · Data collection · Final report · Aug 18, 2011 · N7763K · Substantial damage
  > The student pilot’s decision to take off toward a hill with a gusting tailwind. Contributing was the pilot's premature rotation that prevented the airplane from climbing over the hill.
- [NTSB ANC11CA081](https://openairdocs.org/ntsb/ANC11CA081.md): Piper PA-18-180 · Valdez, AK · Accident · No injuries · Data collection · Final report · Aug 17, 2011 · N91134 · Substantial damage
  > The pilot's failure to maintain the proper approach path, which resulted in a runway undershoot.
- [NTSB ANC11LA080](https://openairdocs.org/ntsb/ANC11LA080.md): Piper PA-18-150 · Cape Yakataga, AK · Accident · 2 fatal · Limited investigation · Final report · Aug 16, 2011 · N4205Z · Substantial damage
  > A collision into water during initial climb after takeoff for undetermined reasons.
- [NTSB ANC11FA077](https://openairdocs.org/ntsb/ANC11FA077.md): Cessna 207 · McGrath, AK · Accident · 2 fatal · Field investigation · Final report · Aug 14, 2011 · N91099 · Substantial damage
  > The pilot's decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in an in-flight collision with mountainous terrain.
- [NTSB ANC11CA076](https://openairdocs.org/ntsb/ANC11CA076.md): Piper PA-18-135 · Coldfoot, AK · Accident · Minor injuries · Data collection · Final report · Aug 13, 2011 · N1258C · Substantial damage
  > The pilot's inadvertent application of the right brake pedal during the landing roll, which resulted in a nose-over.
- [NTSB ANC11CA075](https://openairdocs.org/ntsb/ANC11CA075.md): Piper PA-32-301 · Kodiak, AK · Accident · No injuries · Data collection · Final report · Aug 12, 2011 · N8152Z · Substantial damage
  > A partial loss of engine power while on approach to land due to a disconnected throttle control linkage, and the maintenance director's inadequate inspection of the throttle linkage during maintenance.
- [NTSB ANC11CA078](https://openairdocs.org/ntsb/ANC11CA078.md): Piper PA-11 · Chenga Bay, AK · Accident · No injuries · Data collection · Final report · Aug 11, 2011 · N78635 · Substantial damage
  > The pilot's improper decision to land on an unsuitable landing surface which resulted in a nose over.
- [NTSB ANC11CA074](https://openairdocs.org/ntsb/ANC11CA074.md): Piper PA-18-150 · Coldfoot, AK · Accident · No injuries · Data collection · Final report · Aug 7, 2011 · N762LA · Substantial damage
  > The pilot's inadequate directional control of the airplane during takeoff. Contributing to the accident was the pilot’s fatigue.
- [NTSB ANC11TA079](https://openairdocs.org/ntsb/ANC11TA079.md): Dehavilland DHC-2 MK. I(L20A) · Northway, AK · Accident · No injuries · Final report · Aug 3, 2011 · N723DR · Substantial damage
  > The pilot's failure to identify unsuitable terrain for landing and subsequent contact with a dirt mound, resulting in the separation of the tailwheel from the airframe.
- [NTSB ANC11FA071](https://openairdocs.org/ntsb/ANC11FA071.md): Cessna U206G · Talkeetna, AK · Accident · 4 fatal · Field investigation · Final report · Jul 30, 2011 · N756MP · 2 aircraft · Minor damage
  > The inadequate visual lookout and failure to see and avoid by the pilots of both airplanes while maneuvering to land, which resulted in a midair collision. Contributing to the accident was the lack of standardized, unequivocal procedures concerning common…

Next page: https://openairdocs.org/ntsb.md?year=2011&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 year(c."eventDate") = 2011
  AND c."eventStateOrRegion" = 'AK' AND c."eventCountry" = 'USA'
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?state=AK&year=2011

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