Sequence of Events
The pilot of a twin-engine airplane reported that during the takeoff roll on a 3,500-foot runway, the airspeed indicator did not show an airspeed. He rejected the takeoff and attempted to brake, but stated that "full braking [was] not initially possible due to lift." The airplane subsequently overran the runway onto a downhill grass area and struck a wood fence.
Inspection and Findings
During a post-accident inspection, the pilot discovered that the pitot tube cover had not been removed before the flight. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Aircraft Performance Information
According to the manufacturer, the typical takeoff roll for the airplane is approximately 1,336 feet, and the approximate landing roll is 1,440 feet.
Damage
The airplane sustained substantial damage to both wings.
Pilot's Comments
The pilot noted that his preflight memory list consisted of: fuel, oil, tires, props, and surfaces. He stated that he will now add "chocks, cowl plugs, pitot tube covers" to the list.