Amateur-built S1 N423JB accident near Arlington, Washington

Sep 4, 2021 · NTSB number WPR21LA336 · Final report

Probable cause

The pilot’s loss of directional control during landing.

NTSB analysis

The tail wheel equipped airplane landed hard after the student pilot performed a series of touch-and-go takeoffs and landings. The airplane travelled off the runway to the left and came to rest in the grass. The pilot sustained serious injuries, which prevented him from recalling the accident circumstances. The airplane sustained substantial damage to the fuselage and both wings. Examination of the airplane’s flight control system did not reveal any mechanical failures or malfunctions that would have precluded normal operation.

Text from the NTSB. Open the NTSB docket for WPR21LA336 for the full record.

Event

Date
Sep 4, 2021
Type
Accident
Place
Arlington, Washington
Nearest airport
Arlington Muni (AWO)
Highest injury
Serious
Serious injuries
1
Weather
Visual (VMC)
Light
Day

Amateur-built S1

N-number
N423JB
Category
Airplane
Year built
2012
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.