What happened
The pilot was conducting a patrol along an 115-kilovolt power line when the aircraft encountered a 230-kilovolt line that crossed over the lower voltage infrastructure. Upon impact, the pilot reported feeling a distinct jolt as the airframe struck the higher-voltage conductor. Despite the collision, the aircraft remained airborne and controllable.
After the strike, the pilot performed a controllability check to ensure the flight surfaces were functioning correctly. Satisfied with the aircraft's handling, the pilot returned to the airport and executed a landing without further incident. Post-flight inspection revealed damage to the left wing tip, vertical stabilizer, and rudder.
The investigation
A physical examination of the airframe confirmed structural damage consistent with the reported impact. The affected components included the left wing tip, the vertical stabilizer, and the rudder. No other mechanical failures were noted that would have prevented the safe return and landing.