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DEN84LA034

1983-12-01 · HELENA, Montana, United States · Serious · 1 aircraft · Status: Completed

Airport HLN

Current FAA registration · N4818D

Make / Model
CESSNA 172N
Year of manufacture
1979 · 4 years old at event
Engine
LYCOMING 0-320 SERIES (180 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19790305
ADS-B equipped
Yes — Mode-S A5EFC4

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Factual narrative

THE ACFT PROPELLER STRUCK A PASSENGER WHO WAS ATTEMPING TO SWEEP SNOW OFF THE ACFT. THE PLT'S AND PASSENGER'S VERSION OF MISHAP VARY. THE PLT STATED HE INSTRUCTED THE PASSENGER TO STAY AWAY FROM THE ACFT. THE PASSENGER STATED THE PLT TOLDHIM TO SWEEP THE SNOW OFF THE ACFT AND THAT THE NEXT THING HE REMEMBERS 'IS HOLDING MY ARM AFTER IT HAD BEEN HIT.' Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1983_DEN84LA034.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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