Warning Symbols
The Federal Aviation Administration (FAA) can’t make it a requirement for every state to hang the colorful balls on their live wires, despite this and other accidents. Instead, the agency can only recommend that these warning symbols prevent fatal collisions between overhead aircraft.

Warning Symbols
ADVERTISEMENT
Colliding With Live Wires
Helicopter pilots are also known to collide with live wires regularly. According to a 2003 report in FAAviation News, they frequently hit the cables for various reasons. “Dirty windscreens, light conditions, and the obscuring effects of terrain and changes in visual perspective that occur during climb and descent,” according to the report.

Colliding With Live Wires