Cessna 172 N46017 accident near Dillon, Montana

Dec 8, 2020 · NTSB number WPR21LA067 · Final report

Probable cause

The student pilot’s exceedance of the airplane’s critical angle attack during an attempted go-around, which resulted in an aerodynamic stall.

NTSB analysis

The solo student pilot reported that, while on final approach to land, he decided to initiate a go-around. He applied full power and pitched up the airplane, which then stalled and turned left about 90°. The pilot was able to recover from the stall, but the airplane was close to the ground. Subsequently he landed the airplane in an open field. The student saw an irrigation ditch ahead and attempted to become airborne again, but the airplane did not gain sufficient lift and subsequently impacted the ditch. The airplane sustained substantial damage to the fuselage. The student reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Text from the NTSB. Open the NTSB docket for WPR21LA067 for the full record.

Event

Date
Dec 8, 2020
Type
Accident
Place
Dillon, Montana
Nearest airport
Dillon Airport (DLN)
Highest injury
Serious
Serious injuries
1
Weather
Visual (VMC)
Light
Day

Cessna 172

N-number
N46017
Category
Airplane
Year built
1968
Damage
Substantial
Operating rule
Part 91 (general aviation)
Purpose of flight
Personal

From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.