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Atlas / NTSB / WPR14CA364

NTSB CAROL · Event

Event WPR14CA364

2014-09-03 Grass Valley, California, United States Airport · GOO None 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

The pilot's inadequate flare which resulted in a loss of aircraft control during landing.

Factual narrative

The pilot reported that on landing the airplane touched down hard and began to porpoise, striking the runway twice during the accident sequence. The pilot reported a loss of nose wheel and rudder control responsiveness and was unable to maintain directional control when the airplane departed the runway to the right, traveled down an embankment and subsequently rolled over, coming to rest inverted. The airplane sustained substantial damage to right wing, vertical stabilizer and fuselage. The pilot reported no preimpact mechanical failures or malfunctions that would have precluded normal operation of the airplane. The pilot reported that on landing the airplane touched down hard and began to porpoise, striking the runway twice during the accident sequence. The pilot reported a loss of nose wheel and rudder control responsiveness and was unable to maintain directional control when the airplane departed the runway to the right, traveled down an embankment and subsequently rolled over, coming to rest inverted. The airplane sustained substantial damage to right wing, vertical stabilizer and fuselage. The pilot reported no preimpact mechanical failures or malfunctions that would have precluded normal operation of the airplane. 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-Landing flare-Not attained/maintained - C

Verbatim from NTSB's published report. Source file NTSB_2014_WPR14CA364.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.