Primary finding
Probable cause
The pilot receiving instruction’s failure to correctly identify the runway centerline prior to initiating the nighttime takeoff, which resulted in a collision with a runway edge light and subsequent runway excursion. Contributing to the accident was the flight instructor's inadequate monitoring of the pilot.
Investigator assessment
Analysis narrative
The pilot receiving instruction reported that after receiving clearance from the control tower to take off, he taxied onto the runway during nighttime conditions. As the airplane proceeded along the center of the taxiway, he mistook the right runway edge line for the runway centerline and attempted to take off. During the takeoff roll, the airplane impacted a runway edge light, and went into the grass area adjacent to the runway. The airplane sustained substantial damage to the horizontal stabilator and the right wing during the accident. The pilot and the flight instructor reported there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.