NTSB CHI86LA055 — 1985-12-31 · GRYGLA, Minnesota, United States

Current FAA registration · N3828V

Make / Model: CESSNA 170
Year of manufacture: 1948 · 37 years old at event
Engine: CONT MOTOR C145 SERIES (145 hp)
Seats / Engines: 4 seats · 1 engine
Last airworthiness date: 19560131
ADS-B equipped: Yes — Mode-S A4663C

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N3828V Cessna 170A None

Factual narrative

THE AIRCRAFT HAD BEEN FITTED WITH OWNER INSTALLD SKIS. DURING LANDING THE LEFT SKI SEPARATES FROM ITS MOUNT ALLOWING THE LEFT SKI MOUNT TO DIG INTO THE SNOW COVERED RUNWAY. THE RIGHT WINGTIP STRUCK A SNOWBANK AND THE AIRCRAFT CAME TO REST ON ITS NOSE. THE PILOT STATED THAT THE SKI MOUNT RETAINING WASHER WAS MISSING ALLOWING THE SKI MOUNT TO SLIDE OVER THE RETAINING NUT AND COTTER PIN ON THE AXLE END.HE FURTHER STATED THAT IT WAS EITHER AN OVERSIGHT DURING PREFLIGHT, OR THAT THE WASHER COULD HAVE COME OFF DURING THE LAST LAST FLIGHT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1985_CHI86LA055.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Search this event elsewhere

External sources are reported, not agency: signal that something happened, not fact about what happened.

Related research

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