No fatalities

GRUMMAN G-44A accident at Los Alamos, NM, 5 Apr 2023

Los Alamos, NM, United States

On April 5, 2023, a GRUMMAN G-44A was involved in an aviation accident near Los Alamos, NM. No fatalities were reported. Investigators recorded the probable cause as: The pilot receiving instruction’s failure to maintain directional control during the takeoff roll, resulting in a runway excursion and ground collision. This summary draws on records from NTSB; 2 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

Probable cause

The pilot receiving instruction’s failure to maintain directional control during the takeoff roll, resulting in a runway excursion and ground collision.

— NTSB Determination

Contributing factors

Directional control — Not attained/maintainedStudent/instructed pilot