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Atlas / NTSB / GAA18CA105

NTSB CAROL · Event

Event GAA18CA105

2017-12-17 Wiscassett, Maine, United States Airport · IWI None 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

The pilot’s failure to maintain directional control during the takeoff roll.

Factual narrative

According to the pilot in the tailwheel-equipped, experimental airplane, the airplane bounced to the left side of the runway during the takeoff roll. He thought that the airplane would "straighten itself out", however, the airplane's tail lifted, and the airplane continued to the left. The left main landing gear impacted a snowbank, and the airplane exited the left side of the runway. The airplane came to rest in the safety area. The airplane sustained substantial damage to the empennage. The METAR at the accident airport reported that about the time of the accident, the wind was variable at 4kts and the sky was clear. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. According to the pilot of the tailwheel-equipped, experimental airplane, the airplane bounced to the left side of the runway during the takeoff roll. He thought that the airplane would "straighten itself out"; however, the airplane's tail lifted, and the airplane continued to the left. The left main landing gear impacted a snowbank, and the airplane exited the left side of the runway. The airplane came to rest in the safety area. The airplane sustained substantial damage to the empennage. The METAR at the accident airport reported that about the time of the accident, the wind was variable at 4kts and the sky was clear. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. 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).

  • C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
  • Environmental issues-Physical environment-Object/animal/substance-Snow/ice-Effect on operation

Verbatim from NTSB's published report. Source file NTSB_2017_GAA18CA105.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.