On December 2, 1983, a Cessna 172N (registration N4818D) was involved in an aviation accident near Helena, MT. Investigators recorded the probable cause as: Contact between the propeller and a passenger attempting to remove snow, with conflicting accounts of pilot instructions regarding safety clearance. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.
A passenger was struck by an aircraft propeller while attempting to clear snow from the surface. Conflicting accounts exist regarding pilot instructions during the incident.
What happened
An aviation incident occurred when an aircraft propeller struck a passenger who was positioned near the engine area. The individual had been attempting to sweep snow off the exterior of the aircraft. Discrepancies emerged between the pilot and the passenger regarding the sequence of events leading to the injury.
The pilot stated that he had explicitly instructed the passenger to remain clear of the aircraft during the operation. Conversely, the passenger reported that the pilot had directed him to remove the snow. The passenger described losing consciousness or memory immediately after the propeller made contact, recalling only holding his arm following the impact.
Findings
The primary causal factor was the propeller strike resulting from proximity to the rotating blades during ground operations. Conflicting testimony regarding safety instructions highlights potential communication failures during pre-flight or post-flight procedures in adverse weather conditions.
Probable cause
Contact between the propeller and a passenger attempting to remove snow, with conflicting accounts of pilot instructions regarding safety clearance.
What happened in the 2 Dec 1983 Cessna 172N accident near Helena, MT?
A passenger was struck by an aircraft propeller while attempting to clear snow from the surface. Conflicting accounts exist regarding pilot instructions during the incident.
What aircraft was involved and where did it happen?
The accident on 2 Dec 1983 involved a Cessna 172N, registration N4818D, at Helena, MT.
What was the probable cause of the accident?
Contact between the propeller and a passenger attempting to remove snow, with conflicting accounts of pilot instructions regarding safety clearance.
A SkyWalk Join't 3 paraglider crashed into the ground near Las Vizcachas, Chile, on September 1, 2024. The pilot and passenger sustained serious spinal…
PARAPENTE (ULTRALIVIANO NO MOTORIZADO)·2024-09-01DGAC Chile
A Cessna 172N struck electrical cables while on final approach to land at Aucó Aerodrome in Chile. The pilot was uninjured, but the aircraft sustained damage…
A Bombardier DHC-8-402 suffered a tail strike during landing at Puerto Williams on September 9, 2024. All 76 occupants were unharmed, but the aircraft…
A MYD JS-MD 3 glider veered off the runway and struck a wall at Vitacura Aerodrome on January 6, 2025. The pilot was uninjured, but the aircraft sustained…
A recreational paraglider flight in Puchuncaví, Chile, ended with the pilot sustaining serious injuries after a rapid descent and impact with a hillside on…
PARAPENTE (ULTRALIVIANO NO MOTORIZADO)·2025-03-29DGAC Chile
A Tecnam P2006T landed on its belly at an aerodrome in Poland after the crew failed to confirm landing gear deployment. The incident resulted in no injuries…