Balloon Contacted Power Lines Which Resulted In An Electrical Arc And A Shower Of Sparks

Location: Rochester, Minnesota  Accident Number: CEN24LA139
Date & Time: March 20, 2024, 19:03 Local   Registration: N5236R
Aircraft: Aerostar International Inc S53A   Aircraft Damage: Substantial
Defining Event: Collision with terr/obj (non-CFIT)  Injuries: 2 Minor, 1 None
Flight Conducted Under: Part 91: General aviation - Personal

Analysis: The pilot reported that as he was attempting to land the hot air balloon in a field, the wind shifted and increased in speed. The pilot attempted to abort the landing but was unable to arrest the ballon’s descent. The balloon contacted power lines which resulted in an electrical arc and a shower of sparks. The arc severed 12 of the 16 flying wires, and the remaining flying wires failed in a manner consistent with overload. The basket separated from the envelope and came to rest on its side.

The balloon sustained substantial damage to the flying wires, attachment hardware, and the basket support structure. The pilot reported that there were no preaccident mechanical malfunctions or failures with the balloon that would have precluded normal operation. The wind at the time of the accident was 350° at 9 knots. 

Probable Cause and Findings: The National Transportation Safety Board determines the probable cause(s) of this accident to be -- The pilot’s failure to maintain clearance from power lines while landing in a field.

FMI: www.ntsb.gov