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GAA18CA367

2018-06-14 · Wasilla, Alaska, United States · None · 1 aircraft · Status: Completed

Airport 0AK1

Current FAA registration · N3764Z

Make / Model
PIPER PA-18-150
Year of manufacture
1960 · 58 years old at event
Engine
LYCOMING 0-320 SERIES (180 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
19690311
ADS-B equipped
Yes — Mode-S A44D11

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s failure to maintain directional control during landing in gusting tailwind conditions.

Factual narrative

The pilot reported that, during short final, the airplane encountered moderate turbulence, but he was able to maintain runway alignment and glide slope with constant power and flight control adjustments. During the landing roll, about 20 miles per hour, the tailwheel equipped airplane veered right. He applied full left aileron and rudder corrections, but the airplane continued to the right, exited the runway, impacted a garden post and came to rest upright in a row of trees. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The weather observation station located about 7 nautical miles from the accident site, about a minute after the accident, reported the wind was variable at 6 knots, gusting 15 knots. The pilot reported the wind was from 130º at 21 knots, gusting 30 knots. The airplane landed on runway 26. The pilot added that, after landing, the wind sock was discovered to be damaged, not indicating wind direction properly, was replaced days after the accident. The pilot reported that, during short final, the airplane encountered moderate turbulence, but he was able to maintain runway alignment and glideslope with constant power and flight control adjustments. During the landing roll, about 20 mph, the tailwheel-equipped airplane veered right. He applied full left aileron and rudder corrections, but the airplane continued to the right, exited the runway, impacted a post, and came to rest upright in a row of trees. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The weather observation station located about 7 nautical miles from the accident site reported that, about 1 minute after the accident, wind was variable at 6 knots, gusting to 15 knots. The pilot reported that the wind was from 130º at 21 knots, gusting to 30 knots. The airplane landed on runway 26. The pilot added that, after landing, the wind sock was found to be damaged and was not indicating wind direction properly; it was replaced after the accident. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
  • C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
  • — Environmental issues-Conditions/weather/phenomena-Wind-Tailwind-Effect on equipment
  • — Environmental issues-Conditions/weather/phenomena-Wind-Gusts-Effect on equipment
  • — Environmental issues-Physical environment-Object/animal/substance-Pole-Contributed to outcome
  • — Environmental issues-Physical environment-Object/animal/substance-Wind sock-Effect on personnel

Verbatim from NTSB's published report. Source file NTSB_2018_GAA18CA367.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

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