NTSB Factual Report

A routine maintenance inspection was conducted on the airplane and the mechanic noticed substantial damage. Buckling was present in the lower firewall and the floor under the rudder pedals, consistent with a hard landing. No hard landings were reported to the operator. The circumstances, crew, and timeline surrounding the damage is unknown.

It is unknown if there were any pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

NTSB Probable Cause

The pilot involved and the phase of flight when the damage occurred were not determined.