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GAA15CA177

2015-07-03 · Hartford, Wisconsin, United States · Minor · 1 aircraft · Status: Completed

Airport HXF

Aircraft involved

Probable cause & findings

The glider pilot's failure to connect the elevator to the elevator control rod during the assembly process, resulting in a loss of control, and a collision with terrain during takeoff.

Factual narrative

The pilot reported that during the glider assembly process, he was distracted several times, and did not connect the elevator to the elevator control rod. He reported that during the takeoff, while being towed by an airplane, there was an "abnormal pitch up." The pilot wrote that he was "rolling left, pitching up, and losing sight of the tow plane" and that he released the tow line. The glider bounced off the ground, impacted a tree line, and sustained substantial damage to the fuselage and both wings. The pilot reported that during the glider assembly process, he was distracted several times, and did not connect the elevator to the elevator control rod. He reported that during the takeoff, while being towed by an airplane, there was an "abnormal pitch up." The pilot wrote that he was "rolling left, pitching up, and losing sight of the tow plane" and that he released the tow line. The glider bounced off the ground, impacted a tree line, and sustained substantial damage to the fuselage and both wings. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • C Personnel issues-Task performance-Maintenance-Installation-Owner/builder - C
  • C Aircraft-Aircraft systems-Flight control system-Elevator control system-Incorrect service/maintenance - C
  • — Environmental issues-Physical environment-Object/animal/substance-Tree(s)-Contributed to outcome
  • — Personnel issues-Psychological-Attention/monitoring-Task monitoring/vigilance-Owner/builder

Verbatim from NTSB's published report. Source file NTSB_2015_GAA15CA177.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 (loss of control). All research papers