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Atlas / NTSB / ERA12CA378

NTSB CAROL · Event

Event ERA12CA378

2012-05-28 Mocksville, North Carolina, United States Airport · 43NC None 1 aircraft Status: Completed

Registry · N817V

FAA Aircraft Registry record.

Make / Model

RANS S-6

Year of manufacture

2025

Engine

ROTAX 912UL SERIES (80 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

20250821

ADS-B equipped

Yes — Mode-S AB2538

Registrant of record

VIERRA AARON M

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The glider pilot's failure to attain and maintain directional control during takeoff.

Factual narrative

According to the pilot, his glider's heading differed about 5 degrees from that of the towplane, when the towplane began its takeoff roll. The pilot used rudder to correct but the glider dragged a wing, and yawed 70 degrees to its right as a result. The glider lifted 3 to 5 feet above the runway, the pilot released the tow, the glider touched down in a sideslip, and the resultant side load on the tail landing gear "buckled the tailboom 90 [degrees]." The pilot reported that there were no mechanical deficiencies with the glider that would have prevented normal operation, and that the accident might have been prevented by ensuring alignment of the glider with the towplane prior to the takeoff roll. According to the pilot, the glider's heading differed about 5 degrees from that of the towplane when the towplane began its takeoff roll. The pilot used rudder to correct the heading, but the glider dragged a wing and yawed 70 degrees to its right. The glider lifted 3 to 5 feet above the runway, the pilot released the tow, the glider touched down in a sideslip, and the resultant side load on the tail landing gear "buckled the tailboom 90 [degrees]." The pilot reported that there were no mechanical deficiencies with the glider that would have prevented normal operation, and that the accident might have been prevented by ensuring alignment of the glider with the towplane prior to the takeoff roll. 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 Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
  • C Personnel issues-Action/decision-Action-Lack of action-Pilot - C

Verbatim from NTSB's published report. Source file NTSB_2012_ERA12CA378.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.