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Atlas / NTSB / WPR10CA170

NTSB CAROL · Event

Event WPR10CA170

2010-03-18 Phoenix, Arizona, United States Airport · IWA None 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

The student pilot's inadequate compensation for the quartering tailwind during landing and the flight instructor's delay in taking remedial action.

Factual narrative

The flight instructor said that he was giving the student pilot a final instructional flight before his Federal Aviation Administration private pilot certificate check ride. The student was flying the airplane and they were cleared for the option to runway 30L; the wind was from 180 degrees at 7 knots. The flight instructor alerted the student to the left quartering tailwind for the landing. The touchdown was normal, but as the airplane slowed, it began to drift left. Both pilots applied right rudder and then left rudder; however, directional control was lost, and the airplane ground looped. The left wing impacted the runway, bending and wrinkling the wing. Additionally, the aft fuselage was bent and wrinkled near the tail wheel. The flight instructor said that he was giving the student pilot a final instructional flight before his Federal Aviation Administration private pilot certificate check ride. The student was flying the airplane and they were cleared for the option to runway 30L; the wind was from 180 degrees at 7 knots. The flight instructor alerted the student to the left quartering tailwind for the landing. The touchdown was normal, but as the airplane slowed it began to drift left. Both pilots applied right rudder and then left rudder; however, directional control was lost and the airplane ground-looped. The left wing impacted the runway, bending and wrinkling the wing. Additionally, the aft fuselage was bent and wrinkled near the tailwheel. 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-Delayed action-Instructor/check pilot - C
  • C Environmental issues-Conditions/weather/phenomena-Wind-Tailwind-Response/compensation - C

Verbatim from NTSB's published report. Source file NTSB_2010_WPR10CA170.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.