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CEN10CA488

2010-08-20 · Denver, Colorado, United States · None · 1 aircraft · Status: Completed

Airport APA

Current FAA registration · N755K

Make / Model
SMITH AVIATION PA 18 WB
Year of manufacture
2005 · 5 years old at event
Engine
LYCOMING O-360-C4P (180 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
20130228
ADS-B equipped
Yes — Mode-S AA2D7D

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's failure to maintain control of the airplane during landing.

Factual narrative

The pilot reported that the tail wheel on her single-engine airplane had just undergone maintenance to alleviate a shimmy and was told to go practice some touch and go landings to see if the problem had been alleviated. The pilot did several landings and said the shimmy had improved but was not completely gone. However, on the sixth landing, the pilot landed on the tail wheel which resulted in an "extreme and violent" shimmy. The airplane veered to the right and the pilot tried to correct for it by applying pressure to just one brake. The airplane continued to veer off the runway, so the pilot applied both brakes and the airplane flipped over resulting in substantial damage to the right wing strut and rudder. The pilot reported that there were no mechanical problems and the accident could have been prevented if she kept the airplane on the runway. The pilot reported that the tailwheel on her single-engine airplane had just undergone maintenance to alleviate a shimmy and was told to practice some touch-and-go landings to see if the problem had been alleviated. The pilot did several landings and said the shimmy had improved but was not completely gone. However, on the sixth landing, the pilot landed on the tailwheel, which resulted in an "extreme and violent" shimmy. The airplane veered to the right and the pilot tried to correct for it by applying pressure to just one brake. The airplane continued to veer off the runway, so the pilot applied both brakes and the airplane flipped over, resulting in substantial damage to the right wing strut and rudder. The pilot reported that there were no preaccident mechanical problems and that the accident could have been prevented if she kept the airplane on the runway. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-(general)-Not attained/maintained - C

Verbatim from NTSB's published report. Source file NTSB_2010_CEN10CA488.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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Related research

Matched on aircraft type or causal vocabulary (maintenance). All research papers