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GAA18CA370

2018-06-21 · Anchorage, Alaska, United States · None · 1 aircraft · Status: Completed

Airport LHD

Current FAA registration · N4427B

Make / Model
CESSNA 170B
Year of manufacture
1955 · 63 years old at event
Engine
CONT MOTOR C145 SERIES (145 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19560406
ADS-B equipped
Yes — Mode-S A5555A

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s failure to maintain directional control during landing.

Factual narrative

The pilot of the float-equipped airplane reported that, during landing, the touchdown on the water was smooth. While the airplane was on step, she reduced the flaps and the airplane suddenly veered left. She applied right rudder and reduced engine power. The left float hit the concrete shore bank, the airplane spun to the left, and the right wing struck the shore. The airplane sustained substantial damage to the fuselage and both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot of the float-equipped airplane reported that, during landing, the touchdown on the water was smooth. While the airplane was on step, she reduced the flaps, and the airplane suddenly veered left. She applied right rudder and reduced engine power. The left float hit the concrete shore bank, the airplane spun to the left, and the right wing struck the shore. The airplane sustained substantial damage to the fuselage and both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. 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-Physical environment-Object/animal/substance-(general)-Contributed to outcome

Verbatim from NTSB's published report. Source file NTSB_2018_GAA18CA370.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

Matched on aircraft type. All research papers