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Atlas / NTSB / CEN20CA406

NTSB CAROL · Event

Event CEN20CA406

2020-09-19 Union, Illinois, United States Airport · 55LL Minor 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

The pilot’s failure to maintain directional control during takeoff that resulted in a collision with another glider that was parked close to the departure runway, and the pilot’s improper decision to attempt a takeoff without ensuring he had safe clearance from the parked glider.

Factual narrative

The pilot reported that while taking off behind the towplane, the glider drifted to the left and impacted the left wing of another glider that was parked on the ground close to the runway and positioned such that its left wing was about 7 ft in the air. The pilot lost control of the glider and the glider subsequently impacted the ground coming to rest inverted. The glider sustained substantial damage to the left wing, aft fuselage, and empennage. The parked glider sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation. At the time of the accident, the glider was taking off on runway 09 with wind 110o at 7 knots, gusting to 12 knots. The pilot reported that the accident could have been prevented if they had waited until the other glider had been moved away from the runway before beginning the takeoff. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot
  • Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Lateral/bank control-Not attained/maintained
  • Environmental issues-Physical environment-Object/animal/substance-Aircraft-Contributed to outcome

Verbatim from NTSB's published report. Source file NTSB_2020_CEN20CA406.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.