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GAA19CA096

2018-12-11 · Hartford, Wisconsin, United States · None · 1 aircraft · Status: Completed

Airport HXF

Aircraft involved

Probable cause & findings

The pilot's exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and impact with terrain during landing in icing conditions.

Factual narrative

The pilot in the retractable landing gear-equipped airplane reported that during an instrument flight rules, night flight, he initiated an approach in instrument meteorological conditions. During the approach, he saw that rime ice had accumulated on the left wing. He continued the approach and extended the landing gear, and then configured the flaps for landing. The pilot attempted to level off at 1,620ft although the minimum descent altitude was 1,600ft, but the airplane stalled. He applied forward pressure on the yoke to lower the nose and applied full throttle. He recalled that the airplane was extremely slow to respond and, "flying on the ragged edge of stall." The airplane exited the clouds and he could see the airport, but the airplane impacted terrain in a field about 2.4 nautical miles short of the runway. The airplane sustained substantial damage to both wings and the fuselage. The manufacturer pilot operating handbook indicates on page 2-1, per the limitations section:

FLIGHT IN ICING CONDITIONS IS PROHIBITED

The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot in the retractable-landing gear-equipped airplane reported that, during an instrument flight rules night flight, he initiated an approach in instrument meteorological conditions. During the approach, he saw that rime ice had accumulated on the left wing. He continued the approach, extended the landing gear, and then configured the flaps for landing. The pilot attempted to level off at 1,620 ft, although the minimum descent altitude was 1,600 ft, but the airplane stalled. He applied forward pressure on the yoke to lower the nose and applied full throttle. He recalled that the airplane was extremely slow to respond and that it was "flying on the ragged edge of stall." The airplane exited the clouds, and he could see the airport, but the airplane impacted a field about 2.4 nautical miles short of the runway. The airplane sustained substantial damage to both wings and the fuselage. The pilot reported that there were no mechanical malfunctions or failures 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-Task performance-Use of equip/info-Aircraft control-Pilot - C
  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Capability exceeded - C
  • — Environmental issues-Conditions/weather/phenomena-Temp/humidity/pressure-Conducive to structural icing-Effect on operation

Verbatim from NTSB's published report. Source file NTSB_2018_GAA19CA096.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

Matched on aircraft type or causal vocabulary (icing, stall). All research papers