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GAA17CA294

2017-05-28 · Petersville, Alaska, United States · None · 1 aircraft · Status: Completed

Airport N/A

N561TA has since been reassigned. It is now registered to a different aircraft (CUB CRAFTERS INC CCK-1865, built 2021), which was not involved in this event.

Aircraft involved

Probable cause & findings

The pilot’s selection of unsuitable terrain for taxiing, which resulted in a nose-over.

Factual narrative

The pilot of the ski-equipped airplane reported that, as the tailwheel touched down on the glacier, the snow was deeper and softer than he had expected. He added, that during the uphill landing, he elected not to stop the airplane and risk getting stuck. Instead, he completed a turn at the top of the landing area, but was unable to straighten the direction of travel enough for a takeoff. Subsequently, to straighten the airplane before the takeoff, he completed a left 360° turn. During the downhill takeoff, the airplane had poor acceleration and insufficient airspeed to fly, so he aborted the takeoff. As he reduced the engine power, the airplane slowed to what he felt to be a reasonable speed and he initiated a left turn. Subsequently, the right ski dug into the snow, and the airplane came to rest inverted. The airplane sustained substantial damage to the empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot of the ski-equipped airplane reported that, as the tailwheel touched down on the glacier, the snow was deeper and softer than he had expected. He added that, during the uphill landing, he chose not to stop the airplane and risk getting stuck. Instead, he completed a turn at the top of the landing area but was unable to straighten the direction of travel enough for a takeoff. Subsequently, to straighten the airplane before the takeoff, he completed a left 360° turn. During the downhill takeoff, the airplane had poor acceleration and insufficient airspeed to fly, so he aborted the takeoff. As he reduced the engine power, the airplane slowed to what he felt to be a reasonable speed, and he initiated a left turn to taxi back to the top. Subsequently, the right ski dug into the snow, and the airplane came to rest inverted. The airplane sustained substantial damage to the empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • C Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C
  • C Environmental issues-Physical environment-Runway/land/takeoff/taxi surface-Snow/slush/ice covered surface-Decision related to condition - C
  • — Environmental issues-Physical environment-Runway/land/takeoff/taxi surface-Snow/slush/ice covered surface-Effect on operation

Verbatim from NTSB's published report. Source file NTSB_2017_GAA17CA294.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.